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"stars": 0, "raw": "2a02:e40::25 30.214 ms 30.015 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 1.3, "rtt_worst": 1.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.1, "rtt_worst": 2.8, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.2, "rtt_worst": 2.9, "stdev": 0.2 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.5, "rtt_best": 21.7, "rtt_worst": 24.4, "stdev": 0.7 }, { "hop": 5, "ip": "2a00:e90::212:200:5:7", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.1, "rtt_best": 30.4, "rtt_worst": 31.6, "stdev": 0.4 }, { "hop": 6, "ip": "2a00:e90::212:200:6:8", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.1, "rtt_best": 31.0, "rtt_worst": 38.8, "stdev": 2.4 }, { "hop": 7, "ip": "2a00:e90::212:200:6:60", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.4, "rtt_best": 30.8, "rtt_worst": 34.5, "stdev": 1.1 }, { "hop": 8, "ip": "2a00:e90:0:c::7", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.1, "rtt_best": 31.4, "rtt_worst": 66.6, "stdev": 11.0 }, { "hop": 9, "ip": "2a02:e40::23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.7, "rtt_best": 29.9, "rtt_worst": 31.4, "stdev": 0.5 }, { "hop": 10, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.5, "rtt_best": 30.0, "rtt_worst": 30.8, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.039 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 2.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.108 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.175 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 2.16 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", 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"open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.047, "avg": 30.184, "max": 30.329 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.915, "avg": 30.287, "max": 30.472 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.64, 0.965 ], "stars": 0, "raw": "2a00:8642:42::3 1.640 ms 0.965 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. 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"rtt_worst": 66.6, "stdev": 11.0, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 9, "ip": "2a02:e40::23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.7, "rtt_best": 29.9, "rtt_worst": 31.4, "stdev": 0.5, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 10, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.5, "rtt_best": 30.0, "rtt_worst": 30.8, "stdev": 0.3, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.039 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 2.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.108 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.175 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 2.16 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "rtt_ms": 21.67 }, { "hop": 5, "ip": "2a00:e90::212:200:5:7", "rtt_ms": 31.256 }, { "hop": 6, "ip": "2a00:e90::212:200:6:8", "rtt_ms": 54.619 }, { "hop": 7, "ip": "2a00:e90::212:200:6:60", "rtt_ms": 31.023 }, { "hop": 9, "ip": "2a02:e40::23", "rtt_ms": 30.73 }, { "hop": 10, "ip": "2a02:e40::25", "rtt_ms": 31.177 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.039ms pmtu 1500", " 1: 2a00:8642:42::3 2.040ms ", " 1: 2a00:8642:42::3 1.108ms ", " 2: gw.friends.steffann.nl 2.175ms ", " 3: ccr2-ccr1.dc1.nogalliance.org 2.160ms asymm 2 ", " 4: 2001:7f8:1::a500:8400:1 21.670ms asymm 5 ", " 5: 2a00:e90::212:200:5:7 31.256ms asymm 11 ", " 6: 2a00:e90::212:200:6:8 54.619ms asymm 10 ", " 7: 2a00:e90::212:200:6:60 31.023ms asymm 8 ", " 8: no reply", " 9: 2a02:e40::23 30.730ms asymm 7 ", "10: 2a02:e40::25 31.177ms reached", " Resume: pmtu 1500 hops 10 back 7 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 6700, "origin_asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:e90::212:200:6:60", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:53Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a02:e40::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20090508", "org": null, "category": "PA" }, { "prefix": "2001:8c8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20020829", "org": null, "category": "PA" }, { "prefix": "213.244.232.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20030611", "org": null, "category": "PA" }, { "prefix": "195.252.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-971112", "org": null, "category": "PA" }, { "prefix": "62.193.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20000821", "org": null, "category": "PA" }, { "prefix": "178.20.205.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100304", "org": null, "category": "PA" }, { "prefix": "194.106.170.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BEOTEL-NET", "org": "Beotel Net ISP", "category": "PA" }, { "prefix": "185.47.210.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet", "org": null, "category": "PA" }, { "prefix": "62.108.96.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20010904", "org": null, "category": "PA" }, { "prefix": "91.223.162.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RS-TELEKOM-BEONET", "org": null, "category": "PI" }, { "prefix": "91.148.72.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "91.148.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "62.108.103.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet-Lopas", "org": null, "category": "PA" }, { "prefix": "217.26.64.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20001016", "org": null, "category": "PA" }, { "prefix": "194.106.160.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-951108", "org": null, "category": "PA" }, { "prefix": "194.106.166.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Beotel_Subotica", "org": "BeotelNet DPI Subotica", "category": "PA" }, { "prefix": "62.108.107.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Link_016_Lebane", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 2, "invalid": 0, "not_found": 0, "unknown": 0, "total": 2 }, "prefixes": [ { "prefix": "2001:8c8::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a02:e40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 8400, "holder": "TELEKOM-AS TELEKOM SRBIJA a.d.", "prefixes_v6": [ "2a00:e90::/32", "2a06:5b00::/29", "2a06:63c0::/29" ], "trace_only": false, "primary_target_ip": "2a06:63c0::1", "target_ip": "2a06:63c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a06:63c0::1", "host": "(probe)", "source": "probe", "prefix": "2a06:63c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.822, "avg": 31.145, "max": 31.382 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.263, "avg": 31.339, "max": 31.424 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.956, 1.099 ], "stars": 0, "raw": "2a00:8642:42::3 0.956 ms 1.099 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.576, 1.99 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 1.576 ms 1.990 ms" }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "rtts_ms": [ 2.004, 1.694 ], "stars": 0, "raw": "2a00:8642:dc1:2::b 2.004 ms 1.694 ms" }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "rtts_ms": [ 21.415, 21.253 ], "stars": 0, "raw": "2001:7f8:1::a500:8400:1 21.415 ms 21.253 ms" }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "rtts_ms": [ 35.765, 34.765 ], "stars": 0, "raw": "2a00:e90::212:200:6:9 35.765 ms 34.765 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtts_ms": [ 35.581, 35.361 ], "stars": 0, "raw": "2a06:63c7::ffff:ffff:ffff:47 35.581 ms 35.361 ms" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.7, "rtt_best": 1.4, "rtt_worst": 2.2, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.2, "rtt_worst": 2.8, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.0, "rtt_worst": 2.9, "stdev": 0.3 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.0, "rtt_best": 21.8, "rtt_worst": 27.3, "stdev": 1.6 }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.9, "rtt_best": 34.2, "rtt_worst": 36.7, "stdev": 0.8 }, { "hop": 7, "ip": "2a06:63c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.4, "rtt_best": 31.5, "rtt_worst": 40.1, "stdev": 2.9 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.332 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.557 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.422 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 2.783 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "rtt_ms": 22.565 }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "rtt_ms": 34.51 }, { "hop": 7, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtt_ms": 33.687 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: 2a00:8642:42::3 1.332ms ", " 1: 2a00:8642:42::3 1.557ms ", " 2: gw.friends.steffann.nl 2.422ms ", " 3: ccr2-ccr1.dc1.nogalliance.org 2.783ms asymm 2 ", " 4: 2001:7f8:1::a500:8400:1 22.565ms asymm 5 ", " 5: 2a00:e90::212:200:6:9 34.510ms asymm 8 ", " 6: no reply", " 7: 2a06:63c7::ffff:ffff:ffff:47 33.687ms reached", " Resume: pmtu 1500 hops 7 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.822, "avg": 31.145, "max": 31.382 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.263, "avg": 31.339, "max": 31.424 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.956, 1.099 ], "stars": 0, "raw": "2a00:8642:42::3 0.956 ms 1.099 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.576, 1.99 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 1.576 ms 1.990 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "rtts_ms": [ 2.004, 1.694 ], "stars": 0, "raw": "2a00:8642:dc1:2::b 2.004 ms 1.694 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "ccr2-ccr1.dc1.nogalliance.org", "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "rtts_ms": [ 21.415, 21.253 ], "stars": 0, "raw": "2001:7f8:1::a500:8400:1 21.415 ms 21.253 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "rtts_ms": [ 35.765, 34.765 ], "stars": 0, "raw": "2a00:e90::212:200:6:9 35.765 ms 34.765 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtts_ms": [ 35.581, 35.361 ], "stars": 0, "raw": "2a06:63c7::ffff:ffff:ffff:47 35.581 ms 35.361 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.7, "rtt_best": 1.4, "rtt_worst": 2.2, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.2, "rtt_worst": 2.8, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 30.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.0, "rtt_worst": 2.9, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "ccr2-ccr1.dc1.nogalliance.org" }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.0, "rtt_best": 21.8, "rtt_worst": 27.3, "stdev": 1.6, "asn": null, "asname": "NA", "ptr": null }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.9, "rtt_best": 34.2, "rtt_worst": 36.7, "stdev": 0.8, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 7, "ip": "2a06:63c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.4, "rtt_best": 31.5, "rtt_worst": 40.1, "stdev": 2.9, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.332 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.557 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.422 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 2.783 }, { "hop": 4, "ip": "2001:7f8:1::a500:8400:1", "rtt_ms": 22.565 }, { "hop": 5, "ip": "2a00:e90::212:200:6:9", "rtt_ms": 34.51 }, { "hop": 7, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtt_ms": 33.687 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: 2a00:8642:42::3 1.332ms ", " 1: 2a00:8642:42::3 1.557ms ", " 2: gw.friends.steffann.nl 2.422ms ", " 3: ccr2-ccr1.dc1.nogalliance.org 2.783ms asymm 2 ", " 4: 2001:7f8:1::a500:8400:1 22.565ms asymm 5 ", " 5: 2a00:e90::212:200:6:9 34.510ms asymm 8 ", " 6: no reply", " 7: 2a06:63c7::ffff:ffff:ffff:47 33.687ms reached", " Resume: pmtu 1500 hops 7 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 8400, "origin_asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:578::1", "edge_router_ttl": 5, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:03Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a00:e90::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20081113", "org": null, "category": "PA" }, { "prefix": "2a06:5b00::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", 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"91.150.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061121", "org": null, "category": "PA" }, { "prefix": "89.47.40.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20051129", "org": "Telekom Srbija", "category": "PA" }, { "prefix": "92.60.238.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20071207", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "212.200.0.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-980224", "org": null, "category": "PA" }, { "prefix": "93.86.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20080312", "org": null, "category": "PA" }, { "prefix": "94.228.237.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20081110", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "79.101.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20071112", "org": null, "category": "PA" }, { "prefix": "212.62.59.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-19990301", "org": null, "category": "PA" }, { "prefix": "37.35.8.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-IPCBLOK-20120105", "org": null, "category": "PA" }, { "prefix": "188.240.200.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20090623", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "178.79.16.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100429", "org": "Moja Supernova", "category": "PA" }, { "prefix": "46.17.120.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20101019", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "109.198.0.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20091204", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "185.125.176.0/23", "family": "v4", "status": "ASSIGNED PA", "netname": "TIPPNET-HOTSPOT", 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be3.core2.fra2.he.net 30.536ms asymm 6 ", " 9: 100ge0-0-0-3.core1.vie1.he.net 40.367ms asymm 7 ", "10: 100ge0-0-0-23.core1.vie1.he.net 40.220ms asymm 7 ", "11: e0-35.core2.bts1.he.net 39.999ms asymm 8 ", "12: e0-36.core2.beg1.he.net 47.350ms asymm 9 ", "13: 2001:7f8:1e:3::166 51.506ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "origin_asn": 13004, "origin_asname": "SOX - Serbian Open Exchange DOO, RS", "rate_limited_hops": [ 5, 7, 8 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:33f::1", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:35Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "size_before": 31, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "max_before": 31 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "88.218.139.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B3", "org": null, "category": "PA" }, { "prefix": "2001:7f8:1e::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "SOX-IPv6", "org": null, "category": "PI" }, { "prefix": "193.105.163.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": "Todora Dukina 78, 11000 Beograd", "category": "PI" }, { "prefix": "188.120.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PERKE-20090427", "org": null, "category": "PA" }, { "prefix": "91.245.214.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:7f8:1e::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 13004, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", "peering_policy": "Open", "member_type": "peering", "since": "2015-08-20T00:00:00Z", "ipv6": "2001:7f8:1e::1" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", "peering_policy": "Open", "member_type": "peering", "since": "2015-08-20T00:00:00Z", "ipv6": "2001:7f8:1e::1" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 13092, "holder": "UB-AS Akademska mreza Republike Srbije - AMRES", "prefixes_v6": [ "2001:4170::/32" ], "trace_only": false, "primary_target_ip": "2001:4170:2801::1", "target_ip": "2001:4170:2801::1", "target_host": "ban.junis.ni.ac.rs", "target_source": "dns-ns", "targets": [ { "ip": "2001:4170:2801::1", "host": "ban.junis.ni.ac.rs", "source": "dns-ns", "prefix": "2001:4170::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.044, "avg": 37.306, "max": 37.477 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.315, "avg": 37.465, "max": 37.656 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.041, 0.479 ], "stars": 0, "raw": "2a00:8642:42::3 1.041 ms 0.479 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 3.732 ], "stars": 1, "raw": "* 2a00:8642:1000:f000::1 3.732 ms" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 3.592, 2.625 ], "stars": 0, "raw": "2a00:1ca8:1::194 3.592 ms 2.625 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.567, 2.468 ], "stars": 0, "raw": "2a03:3f40::10:41 2.567 ms 2.468 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:550:0:1000::9a36:482a", "rtts_ms": [ 11.752, 11.696 ], "stars": 0, "raw": "2001:550:0:1000::9a36:482a 11.752 ms 11.696 ms" }, { "hop": 8, "ip": "2001:550:0:1000::9a36:3e7a", "rtts_ms": [ 17.302 ], "stars": 1, "raw": "2001:550:0:1000::9a36:3e7a 17.302 ms *" }, { "hop": 9, "ip": "2001:550:0:1000::9a36:3f8d", "rtts_ms": [ 22.571, 23.246 ], "stars": 0, "raw": "2001:550:0:1000::9a36:3f8d 22.571 ms 23.246 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": "2001:550:0:1000::8275:10e", "rtts_ms": [ 25.603 ], "stars": 1, "raw": "* 2001:550:0:1000::8275:10e 25.603 ms" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": "2001:798:1::1b6", "rtts_ms": [ 34.135, 34.95 ], "stars": 0, "raw": "2001:798:1::1b6 34.135 ms 34.950 ms" }, { "hop": 16, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 35.158, 35.53 ], "stars": 0, "raw": "2001:4170:1f00:38::2 35.158 ms 35.530 ms" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": "2001:4170:4031::1", "rtts_ms": [ 38.131, 38.091 ], "stars": 0, "raw": "2001:4170:4031::1 38.131 ms 38.091 ms" }, { "hop": 20, "ip": "2001:4170:4018::2", "rtts_ms": [ 37.933, 38.02 ], "stars": 0, "raw": "2001:4170:4018::2 37.933 ms 38.020 ms" }, { "hop": 21, "ip": "2001:4170:2801::1", "rtts_ms": [ 37.837, 37.227 ], "stars": 0, "raw": "2001:4170:2801::1 37.837 ms 37.227 ms" } ], "last_responsive_hop": 21, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.9, "rtt_best": 1.2, "rtt_worst": 3.4, "stdev": 0.6 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.7, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 20.0, "sent": 10, "rtt_avg": 2.8, "rtt_best": 2.3, "rtt_worst": 3.3, "stdev": 0.3 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.7, "rtt_best": 2.4, "rtt_worst": 3.2, "stdev": 0.3 }, { "hop": 5, "ip": "2001:978:2:40::3:1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 4.0, "rtt_best": 3.8, "rtt_worst": 4.4, "stdev": 0.2 }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3e8d", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.7, "rtt_best": 11.2, "rtt_worst": 12.2, "stdev": 0.3 }, { "hop": 9, "ip": "2001:550:0:1000::9a36:48a6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.3, "rtt_best": 21.4, "rtt_worst": 23.8, "stdev": 0.8 }, { "hop": 12, "ip": "2001:550:0:1000::8275:10e", "loss_pct": 70.0, "sent": 10, "rtt_avg": 25.9, "rtt_best": 25.8, "rtt_worst": 26.0, "stdev": 0.2 }, { "hop": 13, "ip": "2001:978:2:26::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.2, "rtt_best": 25.0, "rtt_worst": 25.4, "stdev": 0.2 }, { "hop": 14, "ip": "2001:798:1::1b5", "loss_pct": 90.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.7, "rtt_worst": 29.7, "stdev": 0.0 }, { "hop": 15, "ip": "2001:798:1::1b6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.0, "rtt_best": 34.7, "rtt_worst": 35.3, "stdev": 0.2 }, { "hop": 16, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.3, "rtt_best": 35.2, "rtt_worst": 62.0, "stdev": 8.4 }, { "hop": 19, "ip": "2001:4170:4018::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.1, "rtt_best": 37.7, "rtt_worst": 38.5, "stdev": 0.3 }, { "hop": 20, "ip": "2001:4170:4018::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.0, "rtt_best": 37.5, "rtt_worst": 38.4, "stdev": 0.2 }, { "hop": 21, "ip": "2001:4170:2801::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.8, "rtt_best": 37.4, "rtt_worst": 38.2, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.385 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.648 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.306 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.091 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.831 }, { "hop": 7, "ip": "be2950.ccr42.fra05.atlas.cogentco.com", "rtt_ms": 11.654 }, { "hop": 9, "ip": "be9456.ccr82.vie01.atlas.cogentco.com", "rtt_ms": 27.008 }, { "hop": 12, "ip": "be2246.rcr51.b020664-1.bud01.atlas.cogentco.com", "rtt_ms": 26.139 }, { "hop": 14, "ip": "amres-ias-geant-gw.zag.hr.geant.net", "rtt_ms": 29.905 }, { "hop": 15, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 36.005 }, { "hop": 16, "ip": "2001:4170:1f00:38::2", "rtt_ms": 36.023 }, { "hop": 19, "ip": "2001:4170:4031::1", "rtt_ms": 43.974 }, { "hop": 21, "ip": "ban.junis.ni.ac.rs", "rtt_ms": 38.313 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: 2a00:8642:42::3 1.385ms ", " 1: 2a00:8642:42::3 1.648ms ", " 2: gw.friends.steffann.nl 2.306ms ", " 3: 2a00:1ca8:1::194 3.091ms ", " 4: 2a03:3f40::10:41 2.831ms ", " 5: no reply", " 6: no reply", " 7: be2950.ccr42.fra05.atlas.cogentco.com 11.654ms ", " 8: no reply", " 9: be9456.ccr82.vie01.atlas.cogentco.com 27.008ms ", "10: no reply", "11: no reply", "12: be2246.rcr51.b020664-1.bud01.atlas.cogentco.com 26.139ms ", "13: no reply", "14: amres-ias-geant-gw.zag.hr.geant.net 29.905ms asymm 8 ", "15: amres-ias-geant.zag.hr.geant.net 36.005ms asymm 10 ", "16: 2001:4170:1f00:38::2 36.023ms asymm 10 ", "17: no reply", "18: no reply", "19: 2001:4170:4031::1 43.974ms asymm 13 ", "20: no reply", "21: ban.junis.ni.ac.rs 38.313ms reached", " Resume: pmtu 1500 hops 21 back 15 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "classification": "open" }, { "ip": "2001:4170:0:1::7", "host": "gaea.rcub.bg.ac.rs", "source": "dns-ns", "prefix": "2001:4170::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.373, "avg": 35.563, "max": 35.98 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.145, "avg": 35.403, "max": 35.929 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.243, 1.204 ], "stars": 0, "raw": "2a00:8642:42::3 1.243 ms 1.204 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.11, 1.546 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.110 ms 1.546 ms" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.331, 2.731 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.331 ms 2.731 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.659, 2.184 ], "stars": 0, "raw": "2a03:3f40::10:41 2.659 ms 2.184 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": 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Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.7, "rtt_worst": 2.6, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 20.0, "sent": 10, "rtt_avg": 2.8, "rtt_best": 2.3, "rtt_worst": 3.3, "stdev": 0.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.7, "rtt_best": 2.4, "rtt_worst": 3.2, "stdev": 0.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2001:978:2:40::3:1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 4.0, "rtt_best": 3.8, "rtt_worst": 4.4, "stdev": 0.2, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": null }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3e8d", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.7, "rtt_best": 11.2, "rtt_worst": 12.2, "stdev": 0.3, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be3343.ccr41.fra05.atlas.cogentco.com" }, { "hop": 9, "ip": "2001:550:0:1000::9a36:48a6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.3, "rtt_best": 21.4, "rtt_worst": 23.8, "stdev": 0.8, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be5456.ccr81.vie01.atlas.cogentco.com" }, { "hop": 12, "ip": "2001:550:0:1000::8275:10e", "loss_pct": 70.0, "sent": 10, "rtt_avg": 25.9, "rtt_best": 25.8, "rtt_worst": 26.0, "stdev": 0.2, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be2246.rcr51.b020664-1.bud01.atlas.cogentco.com" }, { "hop": 13, "ip": "2001:978:2:26::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.2, "rtt_best": 25.0, "rtt_worst": 25.4, "stdev": 0.2, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": null }, { "hop": 14, "ip": "2001:798:1::1b5", "loss_pct": 90.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.7, "rtt_worst": 29.7, "stdev": 0.0, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant-gw.zag.hr.geant.net" }, { "hop": 15, "ip": "2001:798:1::1b6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.0, "rtt_best": 34.7, "rtt_worst": 35.3, "stdev": 0.2, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant.zag.hr.geant.net" }, { "hop": 16, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.3, "rtt_best": 35.2, "rtt_worst": 62.0, "stdev": 8.4, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 19, "ip": "2001:4170:4018::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.1, "rtt_best": 37.7, "rtt_worst": 38.5, "stdev": 0.3, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 20, "ip": "2001:4170:4018::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.0, "rtt_best": 37.5, "rtt_worst": 38.4, "stdev": 0.2, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 21, "ip": "2001:4170:2801::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.8, "rtt_best": 37.4, "rtt_worst": 38.2, "stdev": 0.3, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": "ban.junis.ni.ac.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.385 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.648 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.306 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.091 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.831 }, { "hop": 7, "ip": "be2950.ccr42.fra05.atlas.cogentco.com", "rtt_ms": 11.654 }, { "hop": 9, "ip": "be9456.ccr82.vie01.atlas.cogentco.com", "rtt_ms": 27.008 }, { "hop": 12, "ip": "be2246.rcr51.b020664-1.bud01.atlas.cogentco.com", "rtt_ms": 26.139 }, { "hop": 14, "ip": "amres-ias-geant-gw.zag.hr.geant.net", "rtt_ms": 29.905 }, { "hop": 15, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 36.005 }, { "hop": 16, "ip": "2001:4170:1f00:38::2", "rtt_ms": 36.023 }, { "hop": 19, "ip": "2001:4170:4031::1", "rtt_ms": 43.974 }, { "hop": 21, "ip": "ban.junis.ni.ac.rs", "rtt_ms": 38.313 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: 2a00:8642:42::3 1.385ms ", " 1: 2a00:8642:42::3 1.648ms ", " 2: gw.friends.steffann.nl 2.306ms ", " 3: 2a00:1ca8:1::194 3.091ms ", " 4: 2a03:3f40::10:41 2.831ms ", " 5: no reply", " 6: no reply", " 7: be2950.ccr42.fra05.atlas.cogentco.com 11.654ms ", " 8: no reply", " 9: be9456.ccr82.vie01.atlas.cogentco.com 27.008ms ", "10: no reply", "11: no reply", "12: be2246.rcr51.b020664-1.bud01.atlas.cogentco.com 26.139ms ", "13: no reply", "14: amres-ias-geant-gw.zag.hr.geant.net 29.905ms asymm 8 ", "15: amres-ias-geant.zag.hr.geant.net 36.005ms asymm 10 ", "16: 2001:4170:1f00:38::2 36.023ms asymm 10 ", "17: no reply", "18: no reply", "19: 2001:4170:4031::1 43.974ms asymm 13 ", "20: no reply", "21: ban.junis.ni.ac.rs 38.313ms reached", " Resume: pmtu 1500 hops 21 back 15 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "origin_asn": 13092, "origin_asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "rate_limited_hops": [ 3, 5, 12, 14 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:798:1::1b5", "edge_router_ttl": 14, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 20, "last_te_ip": "2001:4170:4018::2", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2a00:8642:1000:f000::1" }, { "ttl": 3, "result": "time_exceeded", "from": "2a00:1ca8:1::194" }, { "ttl": 4, "result": "time_exceeded", "from": "2a03:3f40::10:41" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:978:2:40::3:1" }, { "ttl": 6, "result": "no_response" }, { "ttl": 7, "result": "no_response" }, { "ttl": 8, "result": "no_response" }, { "ttl": 9, "result": "time_exceeded", "from": "2001:550:0:1000::9a36:48a6" }, { "ttl": 10, "result": "no_response" }, { "ttl": 11, "result": "no_response" }, { "ttl": 12, "result": "no_response" }, { "ttl": 13, "result": "time_exceeded", "from": "2001:978:2:26::2" }, { "ttl": 14, "result": "time_exceeded", "from": "2001:798:1::1b5" }, { "ttl": 15, "result": "time_exceeded", "from": "2001:798:1::1b6" }, { "ttl": 16, "result": "time_exceeded", "from": "2001:4170:1f00:38::2" }, { "ttl": 17, "result": "no_response" }, { "ttl": 18, "result": "no_response" }, { "ttl": 19, "result": "time_exceeded", "from": "2001:4170:4018::1" }, { "ttl": 20, "result": "time_exceeded", "from": "2001:4170:4018::2" }, { "ttl": 21, "result": "echo_reply", "from": "2001:4170:2801::1" }, { "ttl": 22, "result": "echo_reply", "from": "2001:4170:2801::1" }, { "ttl": 23, "result": "echo_reply", "from": "2001:4170:2801::1" }, { "ttl": 24, "result": "echo_reply", "from": "2001:4170:2801::1" } ], "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:26Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 87B; not big enough to test PMTU shrink", "size_before": 87, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 87B; not big enough to test PMTU shrink", "max_before": 87 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "91.187.144.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "2001:4170::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-RCUB-20041012", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.128.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "185.181.68.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20161209", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.0.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "147.91.0.0/16", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:4170::/32", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 15958, "holder": "CETIN_doo_AS CETIN Ltd. Belgrade", "prefixes_v6": [ "2a01:ac80::/32" ], "trace_only": false, "primary_target_ip": "2a01:ac80::1", "target_ip": "2a01:ac80::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a01:ac80::1", "host": "(probe)", "source": "probe", "prefix": "2a01:ac80::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.892, "avg": 30.213, "max": 30.495 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.925, "avg": 30.033, "max": 30.117 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.951, 2.664 ], "stars": 0, "raw": "2a00:8642:42::3 0.951 ms 2.664 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.566, 1.956 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.566 ms 1.956 ms" }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "rtts_ms": [ 1.867, 1.905 ], "stars": 0, "raw": "2a00:8642:dc1:2::b 1.867 ms 1.905 ms" }, { "hop": 4, "ip": "2a01:ac80::1", "rtts_ms": [ 30.28, 29.864 ], "stars": 0, "raw": "2a01:ac80::1 30.280 ms 29.864 ms" } ], "last_responsive_hop": 4, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.2, "rtt_worst": 2.1, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.9, "stdev": 0.4 }, { "hop": 4, "ip": "2a01:ac80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.8, "rtt_best": 30.1, "rtt_worst": 31.2, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.772 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.488 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.332 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 1.635 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: 2a00:8642:42::3 1.772ms ", " 1: 2a00:8642:42::3 1.488ms ", " 2: gw.friends.steffann.nl 2.332ms ", " 3: ccr2-ccr1.dc1.nogalliance.org 1.635ms asymm 2 ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.892, "avg": 30.213, "max": 30.495 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.925, "avg": 30.033, "max": 30.117 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.951, 2.664 ], "stars": 0, "raw": "2a00:8642:42::3 0.951 ms 2.664 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.566, 1.956 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.566 ms 1.956 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "rtts_ms": [ 1.867, 1.905 ], "stars": 0, "raw": "2a00:8642:dc1:2::b 1.867 ms 1.905 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "ccr2-ccr1.dc1.nogalliance.org", "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a01:ac80::1", "rtts_ms": [ 30.28, 29.864 ], "stars": 0, "raw": "2a01:ac80::1 30.280 ms 29.864 ms", "asn": 15958, "asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 4, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.2, "rtt_worst": 2.1, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 2.6, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 30.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:8642:dc1:2::b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.9, "stdev": 0.4, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "ccr2-ccr1.dc1.nogalliance.org" }, { "hop": 4, "ip": "2a01:ac80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.8, "rtt_best": 30.1, "rtt_worst": 31.2, "stdev": 0.3, "asn": 15958, "asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.772 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.488 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.332 }, { "hop": 3, "ip": "ccr2-ccr1.dc1.nogalliance.org", "rtt_ms": 1.635 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: 2a00:8642:42::3 1.772ms ", " 1: 2a00:8642:42::3 1.488ms ", " 2: gw.friends.steffann.nl 2.332ms ", " 3: ccr2-ccr1.dc1.nogalliance.org 1.635ms asymm 2 ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 15958, "origin_asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:412::2", "edge_router_ttl": 6, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:36Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a01:ac80::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-CETIN-20110704", "org": null, "category": "PA" }, { "prefix": "109.245.168.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.192.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "109.245.144.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.200.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "109.245.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20091223", "org": null, "category": "PA" }, { "prefix": "109.106.224.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20091019", "org": null, "category": "PA" }, { "prefix": "109.245.128.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.201.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "P2P-CETINDOO-NET", "org": "CETIN internal point-to-point links", "category": "PA" }, { "prefix": "217.65.204.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "217.65.202.0/23", "family": "v4", "status": "ASSIGNED PA", "netname": "P2P-CETINDOO-NET", "org": "CETIN internal point-to-point links", "category": "PA" }, { "prefix": "109.245.160.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.196.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a01:ac80::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 15958, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 15958, "name": "CETIN Ltd. Belgrade", "url": "https://www.cetin.rs", "peering_policy": "Selective", "member_type": "peering", "since": "2012-11-02T00:00:00Z", "ipv6": "2001:7f8:1e::45" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 15958, "name": "CETIN Ltd. Belgrade", "url": "https://www.cetin.rs", "peering_policy": "Selective", "member_type": "peering", "since": "2012-11-02T00:00:00Z", "ipv6": "2001:7f8:1e::45" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 31042, "holder": "SERBIA-BROADBAND-AS Serbia BroadBand-Srpske Kablovske mreze d.o.o.", "prefixes_v6": [ "2a00:1dd8::/29", "2a03:87c0::/29" ], "trace_only": false, "primary_target_ip": "2a03:87c0::1", "target_ip": "2a03:87c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a03:87c0::1", "host": "(probe)", "source": "probe", "prefix": "2a03:87c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.902, "avg": 31.055, "max": 31.253 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.91, "avg": 36.417, "max": 52.553 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.707, 0.863 ], "stars": 0, "raw": "2a00:8642:42::3 0.707 ms 0.863 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.757, 2.273 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.757 ms 2.273 ms" }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtts_ms": [ 5.052, 4.66 ], "stars": 0, "raw": "2a03:3f40::10:33 5.052 ms 4.660 ms" }, { "hop": 5, "ip": "2a02:2d8:1:a001:232a", "rtts_ms": [ 4.523, 4.075 ], "stars": 0, "raw": "2a02:2d8:1:a001:232a:: 4.523 ms 4.075 ms" }, { "hop": 6, "ip": "2a02:2d8::57f5:e0a2", "rtts_ms": [ 10.101, 10.348 ], "stars": 0, "raw": "2a02:2d8::57f5:e0a2 10.101 ms 10.348 ms" }, { "hop": 7, "ip": "2001:7f8::7942:0:2", "rtts_ms": [ 32.186, 30.599 ], "stars": 0, "raw": "2001:7f8::7942:0:2 32.186 ms 30.599 ms" }, { "hop": 8, "ip": "2a00:1dd8:2:1", "rtts_ms": [ 30.157, 30.293 ], "stars": 0, "raw": "2a00:1dd8:2:1:: 30.157 ms 30.293 ms" }, { "hop": 9, "ip": "2a00:1dd8:2:27::1", "rtts_ms": [ 30.236, 30.504 ], "stars": 0, "raw": "2a00:1dd8:2:27::1 30.236 ms 30.504 ms" }, { "hop": 10, "ip": "2a00:1dd8:2:c001::1", "rtts_ms": [ 31.139, 31.589 ], "stars": 0, "raw": "2a00:1dd8:2:c001::1 31.139 ms 31.589 ms" } ], "last_responsive_hop": 10, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 1.1, "rtt_worst": 1.9, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 2.6, "rtt_best": 2.4, "rtt_worst": 2.9, "stdev": 0.3 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.3, "rtt_best": 2.6, "rtt_worst": 7.0, "stdev": 1.3 }, { "hop": 4, "ip": "2a03:3f40::10:33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.5, "rtt_best": 4.9, "rtt_worst": 6.1, "stdev": 0.4 }, { "hop": 5, "ip": "2a02:2d8:1:a001:232a::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.3, "rtt_best": 4.9, "rtt_worst": 5.6, "stdev": 0.2 }, { "hop": 6, "ip": "2a02:2d8::57f5:e0a2", "loss_pct": 20.0, "sent": 10, "rtt_avg": 11.1, "rtt_best": 10.7, "rtt_worst": 11.4, "stdev": 0.2 }, { "hop": 7, "ip": "2001:7f8::7942:0:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.8, "rtt_best": 31.8, "rtt_worst": 34.6, "stdev": 0.8 }, { "hop": 8, "ip": "2a00:1dd8:2:1::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.6, "rtt_best": 31.2, "rtt_worst": 31.8, "stdev": 0.2 }, { "hop": 9, "ip": "2a00:1dd8:2:26::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.1, "rtt_best": 31.6, "rtt_worst": 32.6, "stdev": 0.3 }, { "hop": 10, "ip": "2a03:87c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.8, "rtt_best": 31.1, "rtt_worst": 51.3, "stdev": 6.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.041 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.123 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.357 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.507 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.997 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtt_ms": 4.769 }, { "hop": 5, "ip": "ae1-499.RT.SRV.DRO.NL.retn.net", "rtt_ms": 5.204 }, { "hop": 6, "ip": "RT.EQX.FKT.DE.retn.net", "rtt_ms": 10.523 }, { "hop": 7, "ip": "2001:7f8::7942:0:2", "rtt_ms": 31.956 }, { "hop": 8, "ip": "bg-ne-m-0-be16.sbb.rs", "rtt_ms": 32.572 }, { "hop": 9, "ip": "bg-ne-m-10-be2.sbb.rs", "rtt_ms": 32.239 }, { "hop": 10, "ip": "bg-tp-c-1-po2.sbb.rs", "rtt_ms": 39.124 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.041ms pmtu 1500", " 1: 2a00:8642:42::3 1.123ms ", " 1: 2a00:8642:42::3 1.357ms ", " 2: gw.friends.steffann.nl 2.507ms ", " 3: 2a00:1ca8:1::194 2.997ms ", " 4: 2a03:3f40::10:33 4.769ms ", " 5: ae1-499.RT.SRV.DRO.NL.retn.net 5.204ms ", " 6: RT.EQX.FKT.DE.retn.net 10.523ms asymm 8 ", " 7: 2001:7f8::7942:0:2 31.956ms ", " 8: bg-ne-m-0-be16.sbb.rs 32.572ms asymm 9 ", " 9: bg-ne-m-10-be2.sbb.rs 32.239ms ", "10: bg-tp-c-1-po2.sbb.rs 39.124ms reached", " Resume: pmtu 1500 hops 10 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.902, "avg": 31.055, "max": 31.253 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.91, "avg": 36.417, "max": 52.553 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.707, 0.863 ], "stars": 0, "raw": "2a00:8642:42::3 0.707 ms 0.863 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. 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Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.6, "rtt_best": 2.4, "rtt_worst": 2.9, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.3, "rtt_best": 2.6, "rtt_worst": 7.0, "stdev": 1.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.5, "rtt_best": 4.9, "rtt_worst": 6.1, "stdev": 0.4, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2a02:2d8:1:a001:232a::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.3, "rtt_best": 4.9, "rtt_worst": 5.6, "stdev": 0.2, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "ae1-499.RT.SRV.DRO.NL.retn.net" }, { "hop": 6, "ip": "2a02:2d8::57f5:e0a2", "loss_pct": 20.0, "sent": 10, "rtt_avg": 11.1, "rtt_best": 10.7, "rtt_worst": 11.4, "stdev": 0.2, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "RT.EQX.FKT.DE.retn.net" }, { "hop": 7, "ip": "2001:7f8::7942:0:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.8, "rtt_best": 31.8, "rtt_worst": 34.6, "stdev": 0.8, "asn": null, "asname": "NA", "ptr": null }, { "hop": 8, "ip": "2a00:1dd8:2:1::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.6, "rtt_best": 31.2, "rtt_worst": 31.8, "stdev": 0.2, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-tp-m-0-be3.sbb.rs" }, { "hop": 9, "ip": "2a00:1dd8:2:26::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.1, "rtt_best": 31.6, "rtt_worst": 32.6, "stdev": 0.3, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-ne-m-10-be1.sbb.rs" }, { "hop": 10, "ip": "2a03:87c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.8, "rtt_best": 31.1, "rtt_worst": 51.3, "stdev": 6.2, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.041 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.123 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.357 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.507 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.997 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtt_ms": 4.769 }, { "hop": 5, "ip": "ae1-499.RT.SRV.DRO.NL.retn.net", "rtt_ms": 5.204 }, { "hop": 6, "ip": "RT.EQX.FKT.DE.retn.net", "rtt_ms": 10.523 }, { "hop": 7, "ip": "2001:7f8::7942:0:2", "rtt_ms": 31.956 }, { "hop": 8, "ip": "bg-ne-m-0-be16.sbb.rs", "rtt_ms": 32.572 }, { "hop": 9, "ip": "bg-ne-m-10-be2.sbb.rs", "rtt_ms": 32.239 }, { "hop": 10, "ip": "bg-tp-c-1-po2.sbb.rs", "rtt_ms": 39.124 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.041ms pmtu 1500", " 1: 2a00:8642:42::3 1.123ms ", " 1: 2a00:8642:42::3 1.357ms ", " 2: gw.friends.steffann.nl 2.507ms ", " 3: 2a00:1ca8:1::194 2.997ms ", " 4: 2a03:3f40::10:33 4.769ms ", " 5: ae1-499.RT.SRV.DRO.NL.retn.net 5.204ms ", " 6: RT.EQX.FKT.DE.retn.net 10.523ms asymm 8 ", " 7: 2001:7f8::7942:0:2 31.956ms ", " 8: bg-ne-m-0-be16.sbb.rs 32.572ms asymm 9 ", " 9: bg-ne-m-10-be2.sbb.rs 32.239ms ", "10: bg-tp-c-1-po2.sbb.rs 39.124ms reached", " Resume: pmtu 1500 hops 10 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 31042, "origin_asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "rate_limited_hops": [ 6 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:1dd8:2:c000::1", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [ "2a00:1dd8:2:1::", "2a00:1dd8:2:24::1", "2a00:1dd8:2:25::1", "2a00:1dd8:2:26::1", "2a00:1dd8:2:27::1", "2a00:1dd8:2:4::", "2a00:1dd8:2:c000::1", "2a00:1dd8:2:c001::1" ], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:01Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a03:87c0::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-SBB-NET-20121211", "org": null, "category": "PA" }, { "prefix": "5.22.160.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-UGNI-20120503", "org": null, "category": "PA" }, { "prefix": "2a00:1dd8::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-SBB-NET-20100323", "org": null, "category": "PA" }, { "prefix": "24.135.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": 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13, "ip": "2001:7f8:1e:8::45", "loss_pct": 0.0, "sent": 10, "rtt_avg": 52.0, "rtt_best": 51.6, "rtt_worst": 52.5, "stdev": 0.2, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "mcloud.sox.rs" }, { "hop": 14, "ip": "2a07:de80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.3, "rtt_best": 50.0, "rtt_worst": 50.8, "stdev": 0.3, "asn": 35779, "asname": "MCLOUD-AS - mCloud doo, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.045 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.536 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.192 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.166 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.779 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.873 }, { "hop": 5, "ip": "2001:b28:3ff::1b1b:0:1", "rtt_ms": 27.138 }, { "hop": 7, "ip": "be47.core4.fra1.he.net", "rtt_ms": 29.346 }, { "hop": 8, "ip": "be47.core2.fra2.he.net", "rtt_ms": 29.921 }, { "hop": 9, "ip": "e0-33.core2.muc1.he.net", "rtt_ms": 34.319 }, { "hop": 10, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 40.378 }, { "hop": 11, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 47.847 }, { "hop": 12, "ip": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "rtt_ms": 49.79 }, { "hop": 13, "ip": "mcloud.sox.rs", "rtt_ms": 51.792 }, { "hop": 14, "ip": "mcloud.sox.rs", "rtt_ms": 52.03 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.045ms pmtu 1500", " 1: 2a00:8642:42::3 1.536ms ", " 1: 2a00:8642:42::3 1.192ms ", " 2: gw.friends.steffann.nl 2.166ms ", " 3: 2a00:1ca8:1::194 2.779ms ", " 4: 2a03:3f40::10:41 2.873ms ", " 5: 2001:b28:3ff::1b1b:0:1 27.138ms asymm 6 ", " 6: no reply", " 7: be47.core4.fra1.he.net 29.346ms asymm 5 ", " 8: be47.core2.fra2.he.net 29.921ms asymm 6 ", " 9: e0-33.core2.muc1.he.net 34.319ms asymm 7 ", "10: e0-35.core2.bts1.he.net 40.378ms asymm 8 ", "11: e0-36.core2.beg1.he.net 47.847ms asymm 9 ", "12: serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 49.790ms ", "13: mcloud.sox.rs 51.792ms asymm 12 ", "14: mcloud.sox.rs 52.030ms asymm 12 ", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 35779, "origin_asname": "MCLOUD-AS - mCloud doo, RS", "rate_limited_hops": [ 5, 8, 9 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:1:6e5::2", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:03Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a07:de80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.125.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "194.146.56.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a07:de80::/29", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 41897, "holder": "SAT-TRAKT-AS Sat-Trakt D.O.O.", "prefixes_v6": [ "2a00:ad03::/32", "2a0c:6300::/30", "2a00:ad07:3000::/36", "2a00:ad00::/29", "2a00:ad00:2010::/44" ], "trace_only": false, "primary_target_ip": "2a0c:6300::1", "target_ip": "2a0c:6300::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:6300::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:6300::/30", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.408, "avg": 37.686, "max": 38.026 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.435, "avg": 37.637, "max": 37.787 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.879, 0.675 ], "stars": 0, "raw": "2a00:8642:42::3 0.879 ms 0.675 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.113 ], "stars": 1, "raw": "* 2a00:8642:1000:f000::1 2.113 ms" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.866, 2.873 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.866 ms 2.873 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.883, 2.056 ], "stars": 0, "raw": "2a03:3f40::10:41 2.883 ms 2.056 ms" }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtts_ms": [ 43.212, 43.499 ], "stars": 0, "raw": "2001:b28:3ff::32cb:0:1 43.212 ms 43.499 ms" }, { "hop": 6, "ip": "2001:7f8:1e::33", "rtts_ms": [ 37.329, 37.499 ], "stars": 0, "raw": "2001:7f8:1e::33 37.329 ms 37.499 ms" }, { "hop": 7, "ip": "2a0c:6300::1", "rtts_ms": [ 40.861, 40.689 ], "stars": 0, "raw": "2a0c:6300::1 40.861 ms 40.689 ms" } ], "last_responsive_hop": 7, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 1.2, "rtt_worst": 2.0, "stdev": 0.2 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 2.0, "rtt_worst": 2.5, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.2, "rtt_worst": 3.4, "stdev": 0.4 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.0, "rtt_best": 2.2, "rtt_worst": 3.5, "stdev": 0.4 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 45.2, "rtt_best": 43.3, "rtt_worst": 58.5, "stdev": 4.7 }, { "hop": 6, "ip": "2001:7f8:1e::33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.3, "rtt_best": 36.0, "rtt_worst": 36.9, "stdev": 0.3 }, { "hop": 7, "ip": "2a0c:6300::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.2, "rtt_best": 37.8, "rtt_worst": 40.1, "stdev": 0.7 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.649 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.296 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.229 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.899 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 3.15 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtt_ms": 48.082 }, { "hop": 6, "ip": "sat-trakt.sox.rs", "rtt_ms": 36.507 }, { "hop": 7, "ip": "2a0c:6300::1", "rtt_ms": 42.637 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: 2a00:8642:42::3 1.649ms ", " 1: 2a00:8642:42::3 1.296ms ", " 2: gw.friends.steffann.nl 2.229ms ", " 3: 2a00:1ca8:1::194 2.899ms ", " 4: 2a03:3f40::10:41 3.150ms ", " 5: 2001:b28:3ff::32cb:0:1 48.082ms ", " 6: sat-trakt.sox.rs 36.507ms asymm 7 ", " 7: 2a0c:6300::1 42.637ms reached", " Resume: pmtu 1500 hops 7 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.408, "avg": 37.686, "max": 38.026 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.435, "avg": 37.637, "max": 37.787 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.879, 0.675 ], "stars": 0, "raw": "2a00:8642:42::3 0.879 ms 0.675 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.113 ], "stars": 1, "raw": "* 2a00:8642:1000:f000::1 2.113 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.866, 2.873 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.866 ms 2.873 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.883, 2.056 ], "stars": 0, "raw": "2a03:3f40::10:41 2.883 ms 2.056 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtts_ms": [ 43.212, 43.499 ], "stars": 0, "raw": "2001:b28:3ff::32cb:0:1 43.212 ms 43.499 ms", "asn": 31500, "asname": "GNM-AS - Global Network Management Inc, AG", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:7f8:1e::33", "rtts_ms": [ 37.329, 37.499 ], "stars": 0, "raw": "2001:7f8:1e::33 37.329 ms 37.499 ms", "asn": 13004, "asname": "Serbian Open eXchange", "ptr": "sat-trakt.sox.rs", "ixp": "sox", "ixp_member_asn": 13004, "ixp_member_name": "Serbian Open eXchange", "six": true, "six_member_asn": 13004, "six_member_name": "Serbian Open eXchange", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a0c:6300::1", "rtts_ms": [ 40.861, 40.689 ], "stars": 0, "raw": "2a0c:6300::1 40.861 ms 40.689 ms", "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 7, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 1.2, "rtt_worst": 2.0, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 2.0, "rtt_worst": 2.5, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. 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"rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.034 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.925 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.433 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.525 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 5.789 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 11.993 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 11.706 }, { "hop": 7, "ip": "e0-33.core2.muc1.he.net", "rtt_ms": 15.036 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 22.655 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 30.183 }, { "hop": 10, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 42.145 }, { "hop": 11, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.768 }, { "hop": 12, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.165 }, { "hop": 13, "ip": "srv68-56.itplatforma.com", "rtt_ms": 28.557 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.034ms pmtu 1500", " 1: 2a00:8642:42::3 1.925ms ", " 1: 2a00:8642:42::3 1.433ms ", " 2: gw.friends.steffann.nl 2.525ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.789ms ", " 5: be2.core4.fra1.he.net 11.993ms ", " 6: be3.core2.fra2.he.net 11.706ms ", " 7: e0-33.core2.muc1.he.net 15.036ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 22.655ms asymm 7 ", " 9: e0-36.core2.beg1.he.net 30.183ms ", "10: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 42.145ms ", "11: sw-thq-ex--mx204 29.768ms ", "12: sw-thq-ex--mx204 29.165ms asymm 11 ", "13: srv68-56.itplatforma.com 28.557ms reached", " Resume: pmtu 1500 hops 13 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a03:5fe0:2::51", "host": "ns.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.452, "avg": 28.573, "max": 28.653 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.476, "avg": 28.578, "max": 28.723 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.136, 0.687 ], "stars": 0, "raw": "2a00:8642:42::3 1.136 ms 0.687 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.489, 1.719 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 1.489 ms 1.719 ms" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 6.278, 4.731 ], "stars": 0, "raw": "2001:470:e:5e::1 6.278 ms 4.731 ms" }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.627, 10.084 ], "stars": 0, "raw": "2001:470:e:38::2 11.627 ms 10.084 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:470:0:2ef::2", "rtts_ms": [ 15.12, 15.496 ], "stars": 0, "raw": "2001:470:0:2ef::2 15.120 ms 15.496 ms" }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 21.369, 22.358 ], "stars": 0, "raw": "2001:470:0:41d::1 21.369 ms 22.358 ms" }, { "hop": 9, "ip": "2001:470:0:33f::1", "rtts_ms": [ 28.439, 28.795 ], "stars": 0, "raw": "2001:470:0:33f::1 28.439 ms 28.795 ms" }, { "hop": 10, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.25, 28.195 ], "stars": 0, "raw": "2001:470:1:61d::2 28.250 ms 28.195 ms" }, { "hop": 11, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.101, 28.081 ], "stars": 0, "raw": "2001:470:1:61d::2 28.101 ms 28.081 ms" }, { "hop": 12, "ip": "2a03:5fe0:2::51", "rtts_ms": [ 27.967, 28.718 ], "stars": 0, "raw": "2a03:5fe0:2::51 27.967 ms 28.718 ms" } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 1.5, "rtt_worst": 2.3, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 2.7, "stdev": 0.2 }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.0, "rtt_best": 5.1, "rtt_worst": 7.0, "stdev": 0.6 }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.3, "rtt_worst": 12.3, "stdev": 0.7 }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 11.9, "rtt_best": 10.6, "rtt_worst": 13.1, "stdev": 0.9 }, { "hop": 7, "ip": "2001:470:0:7ef::2", "loss_pct": 20.0, "sent": 10, "rtt_avg": 22.5, "rtt_best": 21.3, "rtt_worst": 23.4, "stdev": 0.9 }, { "hop": 8, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.2, "rtt_best": 21.3, "rtt_worst": 26.4, "stdev": 1.5 }, { "hop": 9, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.4, "rtt_best": 28.3, "rtt_worst": 29.7, "stdev": 0.4 }, { "hop": 10, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.6, "rtt_best": 28.1, "rtt_worst": 29.0, "stdev": 0.3 }, { "hop": 11, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.2, "rtt_best": 28.8, "rtt_worst": 30.8, "stdev": 0.6 }, { "hop": 12, "ip": "2a03:5fe0:2::51", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.6, "rtt_best": 28.3, "rtt_worst": 29.3, "stdev": 0.4 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.047 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.691 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.109 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 1.833 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 5.819 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 11.408 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 12.977 }, { "hop": 7, "ip": "e0-33.core2.muc1.he.net", "rtt_ms": 14.889 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 23.332 }, { "hop": 9, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.014 }, { "hop": 10, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 81.399 }, { "hop": 11, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 28.453 }, { "hop": 12, "ip": "srv68-51.itplatforma.com", "rtt_ms": 28.635 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.047ms pmtu 1500", " 1: 2a00:8642:42::3 1.691ms ", " 1: 2a00:8642:42::3 1.109ms ", " 2: gw.friends.steffann.nl 1.833ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.819ms ", " 5: be2.core4.fra1.he.net 11.408ms ", " 6: be3.core2.fra2.he.net 12.977ms ", " 7: e0-33.core2.muc1.he.net 14.889ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 23.332ms asymm 7 ", " 9: e0-35.core2.bts1.he.net 22.014ms asymm 8 ", "10: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 81.399ms ", "11: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 28.453ms asymm 10 ", "12: srv68-51.itplatforma.com 28.635ms reached", " Resume: pmtu 1500 hops 12 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a03:5fe0:2::52", "host": "providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.121, "avg": 28.29, "max": 28.393 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.048, "avg": 28.227, "max": 28.534 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.015, 1.358 ], "stars": 0, "raw": "2a00:8642:42::3 1.015 ms 1.358 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.596, 1.998 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.596 ms 1.998 ms" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 4.868, 3.47 ], "stars": 0, "raw": "2001:470:e:5e::1 4.868 ms 3.470 ms" }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.745, 12.027 ], "stars": 0, "raw": "2001:470:e:38::2 11.745 ms 12.027 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:470:0:7ef::2", "rtts_ms": [ 23.224, 23.637 ], "stars": 0, "raw": "2001:470:0:7ef::2 23.224 ms 23.637 ms" }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 23.576, 22.394 ], "stars": 0, "raw": "2001:470:0:41d::1 23.576 ms 22.394 ms" }, { "hop": 9, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.367, 28.344 ], "stars": 0, "raw": "2001:470:0:33f::1 29.367 ms 28.344 ms" }, { "hop": 10, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.089, 28.343 ], "stars": 0, "raw": "2001:470:1:61d::2 28.089 ms 28.343 ms" }, { "hop": 11, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.174, 28.299 ], "stars": 0, "raw": "2001:470:1:61d::2 28.174 ms 28.299 ms" }, { "hop": 12, "ip": "2a03:5fe0:2::52", "rtts_ms": [ 28.107, 28.545 ], "stars": 0, "raw": "2a03:5fe0:2::52 28.107 ms 28.545 ms" } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.3, "rtt_worst": 4.6, "stdev": 0.9 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.1, "rtt_worst": 3.1, "stdev": 0.3 }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.8, "rtt_best": 4.8, "rtt_worst": 7.4, "stdev": 0.7 }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.6, "rtt_worst": 13.0, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.4, "rtt_worst": 12.0, "stdev": 0.6 }, { "hop": 7, "ip": "2001:470:0:2ef::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.2, "rtt_best": 14.8, "rtt_worst": 16.0, "stdev": 0.3 }, { "hop": 8, "ip": "2001:470:0:41d::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.1, "rtt_best": 21.2, "rtt_worst": 24.4, "stdev": 1.0 }, { "hop": 9, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.8, "rtt_best": 21.1, "rtt_worst": 22.3, "stdev": 0.4 }, { "hop": 10, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.5, "rtt_best": 28.8, "rtt_worst": 31.7, "stdev": 0.8 }, { "hop": 11, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.7, "rtt_best": 28.4, "rtt_worst": 76.4, "stdev": 15.1 }, { "hop": 12, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.8, "rtt_best": 28.2, "rtt_worst": 29.2, "stdev": 0.3 }, { "hop": 13, "ip": "2a03:5fe0:2::52", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.4, "rtt_best": 28.1, "rtt_worst": 28.7, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.041 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.622 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.154 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.16 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 6.034 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 12.038 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 10.963 }, { "hop": 7, "ip": "100ge0-0-0-3.core1.vie1.he.net", "rtt_ms": 22.775 }, { "hop": 8, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.448 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.154 }, { "hop": 10, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 38.018 }, { "hop": 11, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.236 }, { "hop": 12, "ip": "srv68-52.itplatforma.com", "rtt_ms": 28.838 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.041ms pmtu 1500", " 1: 2a00:8642:42::3 1.622ms ", " 1: 2a00:8642:42::3 1.154ms ", " 2: gw.friends.steffann.nl 2.160ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 6.034ms ", " 5: be2.core4.fra1.he.net 12.038ms ", " 6: be3.core2.fra2.he.net 10.963ms ", " 7: 100ge0-0-0-3.core1.vie1.he.net 22.775ms ", " 8: e0-35.core2.bts1.he.net 22.448ms ", " 9: e0-36.core2.beg1.he.net 29.154ms ", "10: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 38.018ms ", "11: sw-thq-ex--mx204 29.236ms ", "12: srv68-52.itplatforma.com 28.838ms reached", " Resume: pmtu 1500 hops 12 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.778076171875 }, { "port": 80, "open": true, "rtt_ms": 28.052568435668945 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::46", "host": "support.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 27.887, "avg": 28.328, "max": 28.655 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 27.755, "avg": 28.141, "max": 28.454 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.1, 1.232 ], "stars": 0, "raw": "2a00:8642:42::3 1.100 ms 1.232 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.883, 1.286 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 1.883 ms 1.286 ms" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 4.483, 6.884 ], "stars": 0, "raw": "2001:470:e:5e::1 4.483 ms 6.884 ms" }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 10.476, 9.639 ], "stars": 0, "raw": "2001:470:e:38::2 10.476 ms 9.639 ms" }, { "hop": 6, "ip": "2001:470:e:5a::1", "rtts_ms": [ 11.041, 9.874 ], "stars": 0, "raw": "2001:470:e:5a::1 11.041 ms 9.874 ms" }, { "hop": 7, "ip": "2001:470:0:2ef::2", "rtts_ms": [ 14.307, 14.708 ], "stars": 0, "raw": "2001:470:0:2ef::2 14.307 ms 14.708 ms" }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 21.796, 22.028 ], "stars": 0, "raw": "2001:470:0:41d::1 21.796 ms 22.028 ms" }, { "hop": 9, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.053, 29.408 ], "stars": 0, "raw": "2001:470:0:33f::1 29.053 ms 29.408 ms" }, { "hop": 10, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.312, 28.517 ], "stars": 0, "raw": "2001:470:1:61d::2 28.312 ms 28.517 ms" }, { "hop": 11, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.23, 28.432 ], "stars": 0, "raw": "2001:470:1:61d::2 28.230 ms 28.432 ms" }, { "hop": 12, "ip": "2a03:5fe0::2", "rtts_ms": [ 28.377, 27.844 ], "stars": 0, "raw": "2a03:5fe0::2 28.377 ms 27.844 ms" }, { "hop": 13, "ip": "2a03:5fe0:2::46", "rtts_ms": [ 27.722, 28.077 ], "stars": 0, "raw": "2a03:5fe0:2::46 27.722 ms 28.077 ms" } ], "last_responsive_hop": 13, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.7, "rtt_best": 1.1, "rtt_worst": 2.7, "stdev": 0.5 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 1.9, "rtt_worst": 2.7, "stdev": 0.2 }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.9, "rtt_best": 4.7, "rtt_worst": 7.2, "stdev": 1.0 }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.2, "rtt_best": 9.7, "rtt_worst": 13.3, "stdev": 1.0 }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.4, "rtt_best": 9.3, "rtt_worst": 12.6, "stdev": 0.9 }, { "hop": 7, "ip": "2001:470:0:2ef::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.1, "rtt_best": 14.5, "rtt_worst": 15.5, "stdev": 0.3 }, { "hop": 8, "ip": "2001:470:0:41d::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.7, "rtt_best": 21.0, "rtt_worst": 23.5, "stdev": 0.7 }, { "hop": 9, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.7, "rtt_best": 21.0, "rtt_worst": 22.3, "stdev": 0.4 }, { "hop": 10, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.4, "rtt_best": 28.7, "rtt_worst": 29.9, "stdev": 0.4 }, { "hop": 11, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 28.1, "rtt_worst": 42.9, "stdev": 4.6 }, { "hop": 12, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.8, "rtt_best": 28.5, "rtt_worst": 29.1, "stdev": 0.3 }, { "hop": 13, "ip": "2a03:5fe0:2::46", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.4, "rtt_best": 28.0, "rtt_worst": 29.1, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.043 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 2.066 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 0.967 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.023 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 5.852 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 11.36 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 11.159 }, { "hop": 7, "ip": "e0-33.core2.muc1.he.net", "rtt_ms": 15.415 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 22.0 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.298 }, { "hop": 10, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 28.867 }, { "hop": 11, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.754 }, { "hop": 12, "ip": "support-thq1.itplatforma.com", "rtt_ms": 28.459 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.043ms pmtu 1500", " 1: 2a00:8642:42::3 2.066ms ", " 1: 2a00:8642:42::3 0.967ms ", " 2: gw.friends.steffann.nl 2.023ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.852ms ", " 5: be2.core4.fra1.he.net 11.360ms ", " 6: be3.core2.fra2.he.net 11.159ms ", " 7: e0-33.core2.muc1.he.net 15.415ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 22.000ms asymm 7 ", " 9: e0-36.core2.beg1.he.net 29.298ms ", "10: e0-36.core2.beg1.he.net 28.867ms asymm 9 ", "11: sw-thq-ex--mx204 29.754ms ", "12: support-thq1.itplatforma.com 28.459ms reached", " Resume: pmtu 1500 hops 12 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.600215911865234 }, { "port": 80, "open": true, "rtt_ms": 28.12504768371582 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 27.813, "avg": 28.127, "max": 28.409 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.004, "avg": 28.222, "max": 28.46 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.548, 0.798 ], "stars": 0, "raw": "2a00:8642:42::3 0.548 ms 0.798 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.664 ], "stars": 1, "raw": "* 2a00:8642:1000:f000::1 1.664 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 6.375, 5.141 ], "stars": 0, "raw": "2001:470:e:5e::1 6.375 ms 5.141 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be1.core3.ams1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.614, 11.768 ], "stars": 0, "raw": "2001:470:e:38::2 11.614 ms 11.768 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core4.fra1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:470:e:5a::1", "rtts_ms": [ 11.998, 9.631 ], "stars": 0, "raw": "2001:470:e:5a::1 11.998 ms 9.631 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core2.fra2.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:2ef::2", "rtts_ms": [ 14.933, 14.652 ], "stars": 0, "raw": "2001:470:0:2ef::2 14.933 ms 14.652 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-33.core2.muc1.he.net", "mtr_loss_pct": 50.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 20.595, 22.822 ], "stars": 0, "raw": "2001:470:0:41d::1 20.595 ms 22.822 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-23.core1.vie1.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": "2001:470:0:412::2", "rtts_ms": [ 21.433, 20.99 ], "stars": 0, "raw": "2001:470:0:412::2 21.433 ms 20.990 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2001:470:0:33f::1", "rtts_ms": [ 28.913, 28.415 ], "stars": 0, "raw": "2001:470:0:33f::1 28.913 ms 28.415 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 11, "ip": "2001:470:1:61d::2", "rtts_ms": [ 28.028, 28.554 ], "stars": 0, "raw": "2001:470:1:61d::2 28.028 ms 28.554 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 12, "ip": "2a03:5fe0::2", "rtts_ms": [ 28.455, 28.843 ], "stars": 0, "raw": "2a03:5fe0::2 28.455 ms 28.843 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204", "mtr_loss_pct": 0.0 }, { "hop": 13, "ip": "2a03:5fe0:2::55", "rtts_ms": [ 28.709, 28.378 ], "stars": 0, "raw": "2a03:5fe0:2::55 28.709 ms 28.378 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 13, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 1.4, "rtt_worst": 2.4, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.7, "rtt_best": 2.4, "rtt_worst": 3.0, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.1, "rtt_best": 4.6, "rtt_worst": 7.8, "stdev": 1.0, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be1.core3.ams1.he.net" }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 12.4, "rtt_best": 11.0, "rtt_worst": 13.7, "stdev": 0.9, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core4.fra1.he.net" }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 12.4, "rtt_best": 11.5, "rtt_worst": 13.4, "stdev": 0.6, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core2.fra2.he.net" }, { "hop": 7, "ip": "2001:470:0:7ef::2", "loss_pct": 50.0, "sent": 10, "rtt_avg": 22.8, "rtt_best": 21.9, "rtt_worst": 23.9, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-3.core1.vie1.he.net" }, { "hop": 8, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 21.8, "rtt_worst": 22.8, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 9, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 28.8, "rtt_worst": 30.2, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 10, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.1, "rtt_best": 28.8, "rtt_worst": 73.0, "stdev": 13.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net" }, { "hop": 11, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.5, "rtt_best": 29.2, "rtt_worst": 30.6, "stdev": 0.4, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204" }, { "hop": 12, "ip": "2a03:5fe0:2::55", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.0, "rtt_best": 28.6, "rtt_worst": 29.5, "stdev": 0.3, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.68 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.102 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.167 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 6.811 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 11.497 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 11.849 }, { "hop": 7, "ip": "100ge0-0-0-3.core1.vie1.he.net", "rtt_ms": 23.118 }, { "hop": 8, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 21.608 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.494 }, { "hop": 10, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.08 }, { "hop": 11, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 28.789 }, { "hop": 12, "ip": "srv68-55.itplatforma.com", "rtt_ms": 28.342 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: 2a00:8642:42::3 1.680ms ", " 1: 2a00:8642:42::3 1.102ms ", " 2: gw.friends.steffann.nl 2.167ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 6.811ms ", " 5: be2.core4.fra1.he.net 11.497ms ", " 6: be3.core2.fra2.he.net 11.849ms ", " 7: 100ge0-0-0-3.core1.vie1.he.net 23.118ms ", " 8: e0-35.core2.bts1.he.net 21.608ms ", " 9: e0-36.core2.beg1.he.net 29.494ms ", "10: e0-36.core2.beg1.he.net 29.080ms asymm 9 ", "11: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 28.789ms asymm 10 ", "12: srv68-55.itplatforma.com 28.342ms reached", " Resume: pmtu 1500 hops 12 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.279542922973633 }, { "port": 80, "open": true, "rtt_ms": 28.441667556762695 } ], "origin_asn": 43191, "origin_asname": "providus-as - Providus d.o.o., RS", "rate_limited_hops": [ 7 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:33f::1", "edge_router_ttl": 10, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:56Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 4315, "size_after": 4315 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "size_before": 536, "size_after": null } ], "matrix": { "http": { "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "port": 80, "max_before": 536 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 4315, "max_after": 4315 }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a03:5fe1::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-ZP", "org": null, "category": "unknown" }, { "prefix": "2a03:5fe0::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-THQ", "org": null, "category": "unknown" }, { "prefix": "185.80.69.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-69", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "2a03:5fe2::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-TKC", "org": null, "category": "unknown" }, { "prefix": "185.80.71.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-71", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-118", "org": null, "category": "PA" }, { "prefix": "79.170.119.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-119", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-70", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20070927", "org": null, "category": "PA" }, { "prefix": "185.80.68.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-68", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "185.80.68.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a03:5fe0::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe1::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe2::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 44143, "holder": "A1SERBIA-AS A1 Srbija d.o.o. Beograd", "prefixes_v6": [ "2a00:61c0::/29", "2a00:61c0::/32", "2a00:61c1::/32" ], "trace_only": false, "primary_target_ip": "2a00:61c0::1", "target_ip": "2a00:61c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a00:61c0::1", "host": "(probe)", "source": "probe", "prefix": "2a00:61c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.343, "avg": 33.709, "max": 34.018 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.289, "avg": 33.547, "max": 33.838 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.344, 1.398 ], "stars": 0, "raw": "2a00:8642:42::3 1.344 ms 1.398 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.568, 2.768 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.568 ms 2.768 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.617, 1.943 ], "stars": 0, "raw": "2a03:3f40::10:41 2.617 ms 1.943 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2a00:61c0::1", "rtts_ms": [ 36.574, 36.353 ], "stars": 0, "raw": "2a00:61c0::1 36.574 ms 36.353 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.2, "rtt_worst": 2.3, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.6, "rtt_worst": 3.6, "stdev": 0.3 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.7, "rtt_worst": 4.6, "stdev": 0.5 }, { "hop": 5, "ip": "2a03:5f80:4:2::237:10", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.6, "rtt_best": 19.1, "rtt_worst": 28.5, "stdev": 2.8 }, { "hop": 6, "ip": "2001:850:1:126::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.9, "rtt_best": 19.2, "rtt_worst": 20.3, "stdev": 0.3 }, { "hop": 7, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.5, "rtt_best": 20.0, "rtt_worst": 21.3, "stdev": 0.4 }, { "hop": 8, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.4, "rtt_best": 34.2, "rtt_worst": 34.8, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.042 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.9 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.248 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 1.92 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.72 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.886 }, { "hop": 8, "ip": "2a00:61c0::1", "rtt_ms": 37.193 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.042ms pmtu 1500", " 1: 2a00:8642:42::3 1.900ms ", " 1: 2a00:8642:42::3 1.248ms ", " 2: gw.friends.steffann.nl 1.920ms ", " 3: 2a00:1ca8:1::194 2.720ms ", " 4: 2a03:3f40::10:41 2.886ms ", " 5: no reply", " 6: no reply", " 7: no reply", " 8: 2a00:61c0::1 37.193ms reached", " Resume: pmtu 1500 hops 8 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.343, "avg": 33.709, "max": 34.018 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.289, "avg": 33.547, "max": 33.838 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.344, 1.398 ], "stars": 0, "raw": "2a00:8642:42::3 1.344 ms 1.398 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.568, 2.768 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.568 ms 2.768 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.617, 1.943 ], "stars": 0, "raw": "2a03:3f40::10:41 2.617 ms 1.943 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": "2a00:61c0::1", "rtts_ms": [ 36.574, 36.353 ], "stars": 0, "raw": "2a00:61c0::1 36.574 ms 36.353 ms", "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.2, "rtt_worst": 2.3, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.6, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.6, "rtt_worst": 3.6, "stdev": 0.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.7, "rtt_worst": 4.6, "stdev": 0.5, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2a03:5f80:4:2::237:10", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.6, "rtt_best": 19.1, "rtt_worst": 28.5, "stdev": 2.8, "asn": null, "asname": "NA", "ptr": null }, { "hop": 6, "ip": "2001:850:1:126::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.9, "rtt_best": 19.2, "rtt_worst": 20.3, "stdev": 0.3, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 7, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.5, "rtt_best": 20.0, "rtt_worst": 21.3, "stdev": 0.4, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 8, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.4, "rtt_best": 34.2, "rtt_worst": 34.8, "stdev": 0.2, "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.042 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.9 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.248 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 1.92 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.72 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.886 }, { "hop": 8, "ip": "2a00:61c0::1", "rtt_ms": 37.193 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.042ms pmtu 1500", " 1: 2a00:8642:42::3 1.900ms ", " 1: 2a00:8642:42::3 1.248ms ", " 2: gw.friends.steffann.nl 1.920ms ", " 3: 2a00:1ca8:1::194 2.720ms ", " 4: 2a03:3f40::10:41 2.886ms ", " 5: no reply", " 6: no reply", " 7: no reply", " 8: 2a00:61c0::1 37.193ms reached", " Resume: pmtu 1500 hops 8 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 44143, "origin_asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:61c0:8000:1000::1", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [ "2a00:61c0:8000:1000::1" ], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:35Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a00:61c0::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "188.120.96.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "2a00:61c0::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "2a00:61c1::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "188.120.112.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "188.120.96.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "37.19.104.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20111223", "org": null, "category": "PA" }, { "prefix": "188.120.104.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "95.86.48.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "95.86.8.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "188.120.116.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "185.37.24.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20131008", "org": null, "category": "PA" }, { "prefix": "95.86.4.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "77.243.16.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20070306", "org": null, "category": "PA" }, { "prefix": "198.143.176.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20120516", "org": null, "category": "PA" }, { "prefix": "95.86.60.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "188.120.112.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a00:61c0::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a00:61c0::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 32, "maxLength": 32, "ta": "ripe" }, { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a00:61c1::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 32, "maxLength": 32, "ta": "ripe" }, { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 44143, "name": "A1 Srbija d.o.o.", "url": "https://a1.rs", "peering_policy": "Open", "member_type": "peering", "since": "2026-03-09T09:36:44Z", "ipv6": "2001:7f8:1e::34" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 44143, "name": "A1 Srbija d.o.o.", "url": "https://a1.rs", "peering_policy": "Open", "member_type": "peering", "since": "2026-03-09T09:36:44Z", "ipv6": "2001:7f8:1e::34" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 47267, "holder": "RNIDS-AS Serbian National Internet Domain Registry Foundation", "prefixes_v6": [ "2a0f:eb80::/44", "2a0f:eb80::/48", "2a0f:eb80::/32", "2001:67c:69c::/48", "2a0f:eb80:1::/48" ], "trace_only": false, "primary_target_ip": "2001:67c:69c::59", "target_ip": "2001:67c:69c::59", "target_host": "ns1.rnids.rs", "target_source": "dns-ns", "targets": [ { "ip": "2001:67c:69c::59", "host": "ns1.rnids.rs", "source": "dns-ns", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.205, "avg": 35.532, "max": 35.922 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.221, "avg": 35.507, "max": 35.762 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.289, 0.858 ], "stars": 0, "raw": "2a00:8642:42::3 0.289 ms 0.858 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 4.164, 5.575 ], "stars": 0, "raw": "2001:470:e:5e::1 4.164 ms 5.575 ms" }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.483, 11.836 ], "stars": 0, "raw": "2001:470:e:38::2 11.483 ms 11.836 ms" }, { "hop": 6, "ip": "2001:470:e:5a::1", "rtts_ms": [ 12.084, 11.997 ], "stars": 0, "raw": "2001:470:e:5a::1 12.084 ms 11.997 ms" }, { "hop": 7, "ip": "2001:470:0:7ef::2", "rtts_ms": [ 22.389, 22.217 ], "stars": 0, "raw": "2001:470:0:7ef::2 22.389 ms 22.217 ms" }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 21.713, 21.857 ], "stars": 0, "raw": "2001:470:0:41d::1 21.713 ms 21.857 ms" }, { "hop": 9, "ip": "2001:470:0:412::2", "rtts_ms": [ 21.262, 21.188 ], "stars": 0, "raw": "2001:470:0:412::2 21.262 ms 21.188 ms" }, { "hop": 10, "ip": "2001:470:0:33f::1", "rtts_ms": [ 28.839, 29.375 ], "stars": 0, "raw": "2001:470:0:33f::1 28.839 ms 29.375 ms" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 10, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.9, "rtt_best": 1.4, "rtt_worst": 2.6, "stdev": 0.4 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.9, "rtt_worst": 2.8, "stdev": 0.4 }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.9, "rtt_best": 5.5, "rtt_worst": 6.6, "stdev": 0.3 }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.6, "rtt_best": 11.1, "rtt_worst": 12.2, "stdev": 0.3 }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.1, "rtt_worst": 12.1, "stdev": 0.7 }, { "hop": 7, "ip": "2001:470:0:7ef::2", "loss_pct": 40.0, "sent": 10, "rtt_avg": 22.8, "rtt_best": 21.0, "rtt_worst": 24.5, "stdev": 1.2 }, { "hop": 8, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.9, "rtt_best": 21.3, "rtt_worst": 23.0, "stdev": 0.5 }, { "hop": 9, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 28.8, "rtt_worst": 32.3, "stdev": 1.0 }, { "hop": 10, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.8, "rtt_best": 39.5, "rtt_worst": 40.5, "stdev": 0.3 }, { "hop": 11, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 90.0, "sent": 10, "rtt_avg": 36.4, "rtt_best": 36.4, "rtt_worst": 36.4, "stdev": 0.0 }, { "hop": 12, "ip": "2001:67c:69c::59", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.0, "rtt_best": 35.3, "rtt_worst": 36.4, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.681 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.6 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.528 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 5.564 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 9.487 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 11.577 }, { "hop": 7, "ip": "100ge0-0-0-3.core1.vie1.he.net", "rtt_ms": 22.066 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 21.217 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.5 }, { "hop": 10, "ip": "rnids.sox.rs", "rtt_ms": 39.853 }, { "hop": 11, "ip": "rnids.sox.rs", "rtt_ms": 39.575 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 1.681ms ", " 1: 2a00:8642:42::3 1.600ms ", " 2: gw.friends.steffann.nl 2.528ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.564ms ", " 5: be2.core4.fra1.he.net 9.487ms ", " 6: be3.core2.fra2.he.net 11.577ms ", " 7: 100ge0-0-0-3.core1.vie1.he.net 22.066ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 21.217ms asymm 7 ", " 9: e0-36.core2.beg1.he.net 29.500ms ", "10: rnids.sox.rs 39.853ms asymm 6 ", "11: rnids.sox.rs 39.575ms asymm 6 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::60", "host": "ns2.rnids.rs", "source": "dns-ns", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 39.266, "avg": 39.484, "max": 39.713 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 39.334, "avg": 39.581, "max": 39.826 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.509, 1.545 ], "stars": 0, "raw": "2a00:8642:42::3 1.509 ms 1.545 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.898, 1.991 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.898 ms 1.991 ms" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 7.23, 4.759 ], "stars": 0, "raw": "2001:470:e:5e::1 7.230 ms 4.759 ms" }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.485, 11.837 ], "stars": 0, "raw": "2001:470:e:38::2 11.485 ms 11.837 ms" }, { "hop": 6, "ip": "2001:470:e:5a::1", "rtts_ms": [ 11.724, 12.003 ], "stars": 0, "raw": "2001:470:e:5a::1 11.724 ms 12.003 ms" }, { "hop": 7, "ip": "2001:470:0:7ef::2", "rtts_ms": [ 21.425, 22.566 ], "stars": 0, "raw": "2001:470:0:7ef::2 21.425 ms 22.566 ms" }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 22.35, 21.57 ], "stars": 0, 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"ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 1.3, "rtt_worst": 2.3, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.7, "rtt_worst": 2.7, "stdev": 0.3 }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.1, "rtt_best": 5.0, "rtt_worst": 7.2, "stdev": 0.7 }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.8, "rtt_best": 10.0, "rtt_worst": 13.1, "stdev": 1.1 }, { "hop": 6, 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reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::53", "host": "ns4.rnids.rs", "source": "holder-derived", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.764, "avg": 38.013, "max": 38.123 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 37.976, "avg": 38.105, "max": 38.409 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.437, 1.388 ], "stars": 0, "raw": "2a00:8642:42::3 1.437 ms 1.388 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.38, 1.853 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.380 ms 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"be1.core3.ams1.he.net", "rtt_ms": 5.811 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 11.543 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 10.269 }, { "hop": 7, "ip": "e0-33.core2.muc1.he.net", "rtt_ms": 14.692 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 22.707 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 28.884 }, { "hop": 10, "ip": "rnids.sox.rs", "rtt_ms": 39.454 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.070ms pmtu 1500", " 1: 2a00:8642:42::3 1.559ms ", " 1: 2a00:8642:42::3 1.172ms ", " 2: gw.friends.steffann.nl 2.035ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.811ms ", " 5: be2.core4.fra1.he.net 11.543ms ", " 6: be3.core2.fra2.he.net 10.269ms ", " 7: e0-33.core2.muc1.he.net 14.692ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 22.707ms asymm 7 ", " 9: e0-36.core2.beg1.he.net 28.884ms ", "10: rnids.sox.rs 39.454ms asymm 6 ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.205, "avg": 35.532, "max": 35.922 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.221, "avg": 35.507, "max": 35.762 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.289, 0.858 ], "stars": 0, "raw": "2a00:8642:42::3 0.289 ms 0.858 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:e:5e::1", "rtts_ms": [ 4.164, 5.575 ], "stars": 0, "raw": "2001:470:e:5e::1 4.164 ms 5.575 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be1.core3.ams1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:e:38::2", "rtts_ms": [ 11.483, 11.836 ], "stars": 0, "raw": "2001:470:e:38::2 11.483 ms 11.836 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core4.fra1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:470:e:5a::1", "rtts_ms": [ 12.084, 11.997 ], "stars": 0, "raw": "2001:470:e:5a::1 12.084 ms 11.997 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core2.fra2.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:7ef::2", "rtts_ms": [ 22.389, 22.217 ], "stars": 0, "raw": "2001:470:0:7ef::2 22.389 ms 22.217 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-3.core1.vie1.he.net", "mtr_loss_pct": 40.0 }, { "hop": 8, "ip": "2001:470:0:41d::1", "rtts_ms": [ 21.713, 21.857 ], "stars": 0, "raw": "2001:470:0:41d::1 21.713 ms 21.857 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-23.core1.vie1.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": "2001:470:0:412::2", "rtts_ms": [ 21.262, 21.188 ], "stars": 0, "raw": "2001:470:0:412::2 21.262 ms 21.188 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2001:470:0:33f::1", "rtts_ms": [ 28.839, 29.375 ], "stars": 0, "raw": "2001:470:0:33f::1 28.839 ms 29.375 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 90.0, "mtr_loss_path_mismatch": true }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 10, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.9, "rtt_best": 1.4, "rtt_worst": 2.6, "stdev": 0.4, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.9, "rtt_worst": 2.8, "stdev": 0.4, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 10.0, "loss_masked": true }, { "hop": 4, "ip": "2001:470:e:5e::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.9, "rtt_best": 5.5, "rtt_worst": 6.6, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be1.core3.ams1.he.net" }, { "hop": 5, "ip": "2001:470:e:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.6, "rtt_best": 11.1, "rtt_worst": 12.2, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core4.fra1.he.net" }, { "hop": 6, "ip": "2001:470:e:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.1, "rtt_worst": 12.1, "stdev": 0.7, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core2.fra2.he.net" }, { "hop": 7, "ip": "2001:470:0:7ef::2", "loss_pct": 40.0, "sent": 10, "rtt_avg": 22.8, "rtt_best": 21.0, "rtt_worst": 24.5, "stdev": 1.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-3.core1.vie1.he.net" }, { "hop": 8, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.9, "rtt_best": 21.3, "rtt_worst": 23.0, "stdev": 0.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 9, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 28.8, "rtt_worst": 32.3, "stdev": 1.0, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 10, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.8, "rtt_best": 39.5, "rtt_worst": 40.5, "stdev": 0.3, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "rnids.sox.rs" }, { "hop": 11, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 90.0, "sent": 10, "rtt_avg": 36.4, "rtt_best": 36.4, "rtt_worst": 36.4, "stdev": 0.0, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": null }, { "hop": 12, "ip": "2001:67c:69c::59", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.0, "rtt_best": 35.3, "rtt_worst": 36.4, "stdev": 0.3, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": "a.nic.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.681 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.6 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.528 }, { "hop": 4, "ip": "be1.core3.ams1.he.net", "rtt_ms": 5.564 }, { "hop": 5, "ip": "be2.core4.fra1.he.net", "rtt_ms": 9.487 }, { "hop": 6, "ip": "be3.core2.fra2.he.net", "rtt_ms": 11.577 }, { "hop": 7, "ip": "100ge0-0-0-3.core1.vie1.he.net", "rtt_ms": 22.066 }, { "hop": 8, "ip": "100ge0-0-0-23.core1.vie1.he.net", "rtt_ms": 21.217 }, { "hop": 9, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.5 }, { "hop": 10, "ip": "rnids.sox.rs", "rtt_ms": 39.853 }, { "hop": 11, "ip": "rnids.sox.rs", "rtt_ms": 39.575 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 1.681ms ", " 1: 2a00:8642:42::3 1.600ms ", " 2: gw.friends.steffann.nl 2.528ms ", " 3: no reply", " 4: be1.core3.ams1.he.net 5.564ms ", " 5: be2.core4.fra1.he.net 9.487ms ", " 6: be3.core2.fra2.he.net 11.577ms ", " 7: 100ge0-0-0-3.core1.vie1.he.net 22.066ms ", " 8: 100ge0-0-0-23.core1.vie1.he.net 21.217ms asymm 7 ", " 9: e0-36.core2.beg1.he.net 29.500ms ", "10: rnids.sox.rs 39.853ms asymm 6 ", "11: rnids.sox.rs 39.575ms asymm 6 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 47267, "origin_asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "rate_limited_hops": [ 7, 11 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a0f:eb80:400:0:91:199:17:244", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [ "2a0f:eb80:400:0:91:199:17:244" ], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:26Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "no DNS response data", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "no DNS response data" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2001:67c:69c::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "RNIDS-IPv6-Net", "org": null, "category": "PI" }, { "prefix": "2a0f:eb80::/44", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "Services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/32", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RNIDS_services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80:1::/48", "family": "v6", "status": "ASSIGNED", "netname": "R-anycast", "org": null, "category": "unknown" }, { "prefix": "185.182.160.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.162.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/48", "family": "v6", "status": "ASSIGNED", "netname": "Services", "org": null, "category": "unknown" }, { "prefix": "185.182.161.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "185.182.163.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.160.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "91.199.17.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RNIDS-Net", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 5, "invalid": 0, "not_found": 0, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2001:67c:69c::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/44", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80:1::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 49167, "holder": "COMUTEL-AS COMUTEL d.o.o.", "prefixes_v6": [ "2001:67c:2210::/48" ], "trace_only": false, "primary_target_ip": "2001:67c:2210::1", "target_ip": "2001:67c:2210::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2001:67c:2210::1", "host": "(probe)", "source": "probe", "prefix": "2001:67c:2210::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.966, "avg": 37.558, "max": 58.118 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.087, 0.962 ], "stars": 0, "raw": "2a00:8642:42::3 1.087 ms 0.962 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 1.692 ], "stars": 1, "raw": "* 2a00:8642:1000:f000::1 1.692 ms" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:371::2", "rtts_ms": [ 7.666, 7.201 ], "stars": 0, "raw": "2001:470:0:371::2 7.666 ms 7.201 ms" }, { "hop": 6, "ip": "2001:470:0:3b2::2", "rtts_ms": [ 6.301, 6.414 ], "stars": 0, "raw": "2001:470:0:3b2::2 6.301 ms 6.414 ms" }, { "hop": 7, "ip": "2001:470:12:10::2", "rtts_ms": [ 30.495, 30.797 ], "stars": 0, "raw": "2001:470:12:10::2 30.495 ms 30.797 ms" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.5, "rtt_worst": 2.4, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 2.0, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 5, "ip": "2001:470:0:371::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.9, "rtt_best": 7.0, "rtt_worst": 10.8, "stdev": 1.1 }, { "hop": 6, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.9, "rtt_best": 6.3, "rtt_worst": 7.6, "stdev": 0.4 }, { "hop": 7, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.9, "rtt_best": 30.5, "rtt_worst": 31.4, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.455 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.675 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.101 }, { "hop": 5, "ip": "e0-35.core2.dus1.he.net", "rtt_ms": 10.497 }, { "hop": 6, "ip": "tserv2.dus1.he.net", "rtt_ms": 6.589 }, { "hop": 7, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 30.705 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1480", " 1: 2a00:8642:42::3 1.455ms ", " 1: 2a00:8642:42::3 1.675ms ", " 2: gw.friends.steffann.nl 2.101ms ", " 3: no reply", " 4: no reply", " 5: e0-35.core2.dus1.he.net 10.497ms ", " 6: tserv2.dus1.he.net 6.589ms ", " 7: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 30.705ms reached", " Resume: pmtu 1480 hops 7 back 7 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "echo_only" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.966, "avg": 37.558, "max": 58.118 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.087, 0.962 ], "stars": 0, "raw": "2a00:8642:42::3 1.087 ms 0.962 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. 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Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 2.0, "rtt_worst": 2.6, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 5, "ip": "2001:470:0:371::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.9, "rtt_best": 7.0, "rtt_worst": 10.8, "stdev": 1.1, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.dus1.he.net" }, { "hop": 6, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.9, "rtt_best": 6.3, "rtt_worst": 7.6, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tserv2.dus1.he.net" }, { "hop": 7, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.9, "rtt_best": 30.5, "rtt_worst": 31.4, "stdev": 0.3, "asn": 49167, "asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.455 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.675 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.101 }, { "hop": 5, "ip": "e0-35.core2.dus1.he.net", "rtt_ms": 10.497 }, { "hop": 6, "ip": "tserv2.dus1.he.net", "rtt_ms": 6.589 }, { "hop": 7, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 30.705 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1480", " 1: 2a00:8642:42::3 1.455ms ", " 1: 2a00:8642:42::3 1.675ms ", " 2: gw.friends.steffann.nl 2.101ms ", " 3: no reply", " 4: no reply", " 5: e0-35.core2.dus1.he.net 10.497ms ", " 6: tserv2.dus1.he.net 6.589ms ", " 7: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 30.705ms reached", " Resume: pmtu 1480 hops 7 back 7 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 49167, "origin_asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "rate_limited_hops": [], "classification": "echo_only", "yarrp_blackhole": { "edge_router_ip": "2001:470:12:10::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": 11, "last_ptb_ip": "2001:470:0:3b2::2", "last_ptb_mtu": 1480, "last_te_ttl": 5, "last_te_ip": "2001:470:0:371::2", "reached_target": false, "verdict": "pmtud_partial", "explanation": "PMTUD worked at least as deep as hop 10: that router (2001:470:0:3b2::2) returned an ICMPv6 Packet-Too-Big with MTU=1480. The MTU constraint blocking 1500-byte traffic to the target is at or past that hop.", "break_after_ip": "2001:470:0:3b2::2", "break_after_ttl": 10 }, "pmtud_probes": [ { "ttl": 2, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 3, "result": "no_response" }, { "ttl": 4, "result": "no_response" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:470:0:371::2" }, { "ttl": 6, "result": "no_response" }, { "ttl": 7, "result": "no_response" }, { "ttl": 8, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 9, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 10, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 11, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 } ], "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1360, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1400-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1200)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:30Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1360, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1360, "probe_size": 1400, "ptb_mtu": 1200, "fragments_after": 2, "evidence": "destination fragmented its 1400-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1200)" } } }, "address_space": { "type": "PI", "prefixes": [ { "prefix": "2001:67c:2210::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.217.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.216.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "91.212.69.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL", "org": "Omladinskih brigada 88b", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:67c:2210::/48", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "past AS6939 (HURRICANE)", "pmtu_min": 1480 }, { "vantage": "go6lab", "asn": 56843, "holder": "CNT-ISP-AS Centar Novih Tehnologija DOO", "prefixes_v6": [ "2a02:2951::/32" ], "trace_only": false, "primary_target_ip": "2a02:2951::1", "target_ip": "2a02:2951::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a02:2951::1", "host": "(probe)", "source": "probe", "prefix": "2a02:2951::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 32.96, "avg": 33.187, "max": 33.453 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.293, "avg": 33.59, "max": 33.871 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.728, 1.042 ], "stars": 0, "raw": "2a00:8642:42::3 0.728 ms 1.042 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.358, 2.106 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.358 ms 2.106 ms" }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtts_ms": [ 4.963, 4.922 ], "stars": 0, "raw": "2a03:3f40::10:33 4.963 ms 4.922 ms" }, { "hop": 5, "ip": "2a01:4a0:1338:155::1", "rtts_ms": [ 4.919, 5.305 ], "stars": 0, "raw": "2a01:4a0:1338:155::1 4.919 ms 5.305 ms" }, { "hop": 6, "ip": "2a01:4a0:0:2074::3", "rtts_ms": [ 10.322, 10.405 ], "stars": 0, "raw": "2a01:4a0:0:2074::3 10.322 ms 10.405 ms" }, { "hop": 7, "ip": "2a01:4a0:0:2021::4", "rtts_ms": [ 10.353, 10.341 ], "stars": 0, "raw": "2a01:4a0:0:2021::4 10.353 ms 10.341 ms" }, { "hop": 8, "ip": "2001:7f8::23a5:0:1", "rtts_ms": [ 29.573, 30.329 ], "stars": 0, "raw": "2001:7f8::23a5:0:1 29.573 ms 30.329 ms" }, { "hop": 9, "ip": "2a02:b58:1:15::2", "rtts_ms": [ 30.258, 30.201 ], "stars": 0, "raw": "2a02:b58:1:15::2 30.258 ms 30.201 ms" }, { "hop": 10, "ip": "2a02:660:1:1::12", "rtts_ms": [ 33.283, 33.529 ], "stars": 0, "raw": "2a02:660:1:1::12 33.283 ms 33.529 ms" }, { "hop": 11, "ip": "2a02:2951::1", "rtts_ms": [ 33.557, 33.032 ], "stars": 0, "raw": "2a02:2951::1 33.557 ms 33.032 ms" } ], "last_responsive_hop": 11, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.3, "rtt_worst": 1.8, "stdev": 0.2 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.1, "rtt_worst": 2.5, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.2, "rtt_best": 2.5, "rtt_worst": 15.9, "stdev": 4.1 }, { "hop": 4, "ip": "2a03:3f40::10:33", 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5.761ms ", " 6: ae16-2074.fra10.core-backbone.com 10.994ms ", " 7: ae2-2021.fra20.core-backbone.com 11.264ms ", " 8: 2001:7f8::23a5:0:1 30.682ms asymm 7 ", " 9: ??? 30.471ms asymm 8 ", "10: ??? 33.119ms asymm 9 ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 32.96, "avg": 33.187, "max": 33.453 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 33.293, "avg": 33.59, "max": 33.871 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.728, 1.042 ], "stars": 0, "raw": "2a00:8642:42::3 0.728 ms 1.042 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. 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Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.1, "rtt_worst": 2.5, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.2, "rtt_best": 2.5, "rtt_worst": 15.9, "stdev": 4.1, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.9, "rtt_best": 4.4, "rtt_worst": 5.2, "stdev": 0.2, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2a01:4a0:1338:155::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.9, "rtt_best": 5.5, "rtt_worst": 6.5, "stdev": 0.3, "asn": 201011, "asname": "CORE-BACKBONE - Core-Backbone GmbH, DE", "ptr": "ae22-404.ams10.core-backbone.com" }, { "hop": 6, "ip": "2a01:4a0:0:2074::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.3, "rtt_best": 10.6, "rtt_worst": 13.2, "stdev": 0.7, "asn": 201011, "asname": "CORE-BACKBONE - Core-Backbone GmbH, DE", "ptr": "ae16-2074.fra10.core-backbone.com" }, { "hop": 7, "ip": "2a01:4a0:0:2021::4", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.9, "rtt_best": 10.6, "rtt_worst": 11.1, "stdev": 0.2, "asn": 201011, "asname": "CORE-BACKBONE - Core-Backbone GmbH, DE", "ptr": "ae2-2021.fra20.core-backbone.com" }, { "hop": 8, "ip": "2001:7f8::23a5:0:1", "loss_pct": 50.0, "sent": 10, "rtt_avg": 30.1, "rtt_best": 30.0, "rtt_worst": 30.3, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": null }, { "hop": 9, "ip": "2a02:b58:1:15::2", "loss_pct": 50.0, "sent": 10, "rtt_avg": 30.3, "rtt_best": 30.1, "rtt_worst": 30.6, "stdev": 0.2, "asn": 9125, "asname": "ORIONTELEKOM-AS - Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun, RS", "ptr": null }, { "hop": 12, "ip": "2a02:2951::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 33.8, "rtt_best": 33.2, "rtt_worst": 34.3, "stdev": 0.3, "asn": 56843, "asname": "CNT-ISP-AS - Centar Novih Tehnologija DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.042 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.531 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.245 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.458 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.646 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtt_ms": 5.89 }, { "hop": 5, "ip": "ae22-404.ams10.core-backbone.com", "rtt_ms": 5.761 }, { "hop": 6, "ip": "ae16-2074.fra10.core-backbone.com", "rtt_ms": 10.994 }, { "hop": 7, "ip": "ae2-2021.fra20.core-backbone.com", "rtt_ms": 11.264 }, { "hop": 8, "ip": "2001:7f8::23a5:0:1", "rtt_ms": 30.682 }, { "hop": 9, "ip": "???", "rtt_ms": 30.471 }, { "hop": 10, "ip": "???", "rtt_ms": 33.119 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.042ms pmtu 1500", " 1: 2a00:8642:42::3 1.531ms ", " 1: 2a00:8642:42::3 1.245ms ", " 2: gw.friends.steffann.nl 2.458ms ", " 3: 2a00:1ca8:1::194 2.646ms ", " 4: 2a03:3f40::10:33 5.890ms ", " 5: ae22-404.ams10.core-backbone.com 5.761ms ", " 6: ae16-2074.fra10.core-backbone.com 10.994ms ", " 7: ae2-2021.fra20.core-backbone.com 11.264ms ", " 8: 2001:7f8::23a5:0:1 30.682ms asymm 7 ", " 9: ??? 30.471ms asymm 8 ", "10: ??? 33.119ms asymm 9 ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 56843, "origin_asname": "CNT-ISP-AS - Centar Novih Tehnologija DOO, RS", "rate_limited_hops": [ 8, 9 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:b58:1:15::2", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:39Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "94.154.107.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "2a02:2951::/32", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "CNT-ISP-IPv6", "org": null, "category": "PA" }, { "prefix": "94.154.106.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.105.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.104.0/22", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.104.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a02:2951::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 56843, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 60733, "holder": "PERKE-NET ZORAN PEROVIC trading as Agencija Perke.NET", "prefixes_v6": [ "2a09:ab80::/29" ], "trace_only": false, "primary_target_ip": "2a09:ab80::1", "target_ip": "2a09:ab80::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a09:ab80::1", "host": "(probe)", "source": "probe", "prefix": "2a09:ab80::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.396, "avg": 49.831, "max": 50.284 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.716, "avg": 50.078, "max": 50.271 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.063, 0.964 ], "stars": 0, "raw": "2a00:8642:42::3 1.063 ms 0.964 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.645, 2.658 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.645 ms 2.658 ms" }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtts_ms": [ 4.239, 4.07 ], "stars": 0, "raw": "2a03:3f40::10:33 4.239 ms 4.070 ms" }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "rtts_ms": [ 10.324, 10.994 ], "stars": 0, "raw": "2001:7f8:13::a500:6204:1 10.324 ms 10.994 ms" }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtts_ms": [ 26.633, 26.711 ], "stars": 0, "raw": "2a12:3200:f000::157 26.633 ms 26.711 ms" }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtts_ms": [ 39.126, 39.014 ], "stars": 0, "raw": "2a12:3200:f000::80 39.126 ms 39.014 ms" }, { "hop": 8, "ip": "2a09:ab80::1", "rtts_ms": [ 50.403, 50.082 ], "stars": 0, "raw": "2a09:ab80::1 50.403 ms 50.082 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 0.9, "rtt_worst": 1.9, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.4, "rtt_worst": 2.4, "stdev": 0.0 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.2, "rtt_best": 2.8, "rtt_worst": 4.7, "stdev": 0.6 }, { "hop": 4, "ip": "2a03:3f40::10:33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.1, "rtt_best": 5.0, "rtt_worst": 10.6, "stdev": 1.6 }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.7, "rtt_best": 11.0, "rtt_worst": 12.0, "stdev": 0.3 }, { "hop": 6, "ip": "2a12:3200:f000::157", "loss_pct": 0.0, "sent": 10, "rtt_avg": 27.5, "rtt_best": 27.1, "rtt_worst": 28.3, "stdev": 0.4 }, { "hop": 7, "ip": "2a12:3200:f000::80", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.2, "rtt_best": 38.8, "rtt_worst": 39.6, "stdev": 0.2 }, { "hop": 8, "ip": "2a09:ab80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.7, "rtt_best": 50.2, "rtt_worst": 51.9, "stdev": 0.5 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.748 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.678 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.251 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.881 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtt_ms": 6.34 }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "rtt_ms": 11.695 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtt_ms": 27.389 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtt_ms": 39.088 }, { "hop": 8, "ip": "demo2.sox.rs", "rtt_ms": 52.639 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: 2a00:8642:42::3 1.748ms ", " 1: 2a00:8642:42::3 1.678ms ", " 2: gw.friends.steffann.nl 2.251ms ", " 3: 2a00:1ca8:1::194 2.881ms ", " 4: 2a03:3f40::10:33 6.340ms ", " 5: 2001:7f8:13::a500:6204:1 11.695ms ", " 6: 2a12:3200:f000::157 27.389ms ", " 7: 2a12:3200:f000::80 39.088ms ", " 8: demo2.sox.rs 52.639ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.396, "avg": 49.831, "max": 50.284 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.716, "avg": 50.078, "max": 50.271 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.063, 0.964 ], "stars": 0, "raw": "2a00:8642:42::3 1.063 ms 0.964 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.645, 2.658 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.645 ms 2.658 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtts_ms": [ 4.239, 4.07 ], "stars": 0, "raw": "2a03:3f40::10:33 4.239 ms 4.070 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "rtts_ms": [ 10.324, 10.994 ], "stars": 0, "raw": "2001:7f8:13::a500:6204:1 10.324 ms 10.994 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtts_ms": [ 26.633, 26.711 ], "stars": 0, "raw": "2a12:3200:f000::157 26.633 ms 26.711 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtts_ms": [ 39.126, 39.014 ], "stars": 0, "raw": "2a12:3200:f000::80 39.126 ms 39.014 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a09:ab80::1", "rtts_ms": [ 50.403, 50.082 ], "stars": 0, "raw": "2a09:ab80::1 50.403 ms 50.082 ms", "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 0.9, "rtt_worst": 1.9, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 2.4, "rtt_worst": 2.4, "stdev": 0.0, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 90.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.2, "rtt_best": 2.8, "rtt_worst": 4.7, "stdev": 0.6, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:33", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.1, "rtt_best": 5.0, "rtt_worst": 10.6, "stdev": 1.6, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.7, "rtt_best": 11.0, "rtt_worst": 12.0, "stdev": 0.3, "asn": null, "asname": "NA", "ptr": null }, { "hop": 6, "ip": "2a12:3200:f000::157", "loss_pct": 0.0, "sent": 10, "rtt_avg": 27.5, "rtt_best": 27.1, "rtt_worst": 28.3, "stdev": 0.4, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 7, "ip": "2a12:3200:f000::80", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.2, "rtt_best": 38.8, "rtt_worst": 39.6, "stdev": 0.2, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 8, "ip": "2a09:ab80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.7, "rtt_best": 50.2, "rtt_worst": 51.9, "stdev": 0.5, "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.748 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.678 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.251 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.881 }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtt_ms": 6.34 }, { "hop": 5, "ip": "2001:7f8:13::a500:6204:1", "rtt_ms": 11.695 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtt_ms": 27.389 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtt_ms": 39.088 }, { "hop": 8, "ip": "demo2.sox.rs", "rtt_ms": 52.639 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: 2a00:8642:42::3 1.748ms ", " 1: 2a00:8642:42::3 1.678ms ", " 2: gw.friends.steffann.nl 2.251ms ", " 3: 2a00:1ca8:1::194 2.881ms ", " 4: 2a03:3f40::10:33 6.340ms ", " 5: 2001:7f8:13::a500:6204:1 11.695ms ", " 6: 2a12:3200:f000::157 27.389ms ", " 7: 2a12:3200:f000::80 39.088ms ", " 8: demo2.sox.rs 52.639ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 60733, "origin_asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a12:3200:f000::1eb", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:05Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "88.218.137.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-Business", "org": null, "category": "PA" }, { "prefix": "2a09:ab80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-PERKE-20181217", "org": null, "category": "PA" }, { "prefix": "88.218.138.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B2", "org": null, "category": "PA" }, { "prefix": "88.218.136.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a09:ab80::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 60733, "prefix_len": 29, "maxLength": 60, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 202676, "holder": "BRZNET BIZNET DOO", "prefixes_v6": [ "2a0b:4040::/29" ], "trace_only": false, "primary_target_ip": "2a0b:4040::1", "target_ip": "2a0b:4040::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0b:4040::1", "host": "(probe)", "source": "probe", "prefix": "2a0b:4040::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 42.805, "avg": 43.607, "max": 45.217 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 43.086, "avg": 43.158, "max": 43.269 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.55, 1.027 ], "stars": 0, "raw": "2a00:8642:42::3 1.550 ms 1.027 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.522, 2.461 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.522 ms 2.461 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.412, 1.733 ], "stars": 0, "raw": "2a03:3f40::10:41 2.412 ms 1.733 ms" }, { "hop": 5, "ip": "2001:730:2209:7::1", "rtts_ms": [ 4.024, 3.873 ], "stars": 0, "raw": "2001:730:2209:7::1 4.024 ms 3.873 ms" }, { "hop": 6, "ip": "2001:730:2200::5474:8007", "rtts_ms": [ 4.045, 4.212 ], "stars": 0, "raw": "2001:730:2200::5474:8007 4.045 ms 4.212 ms" }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "rtts_ms": [ 25.122, 25.28 ], "stars": 0, "raw": "2001:730:2206:23::d52e:c04d 25.122 ms 25.280 ms" }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "rtts_ms": [ 25.161, 25.478 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::92 25.161 ms 25.478 ms" }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "rtts_ms": [ 44.364, 43.313 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::2c 44.364 ms 43.313 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 9, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.4, "rtt_best": 1.1, "rtt_worst": 1.6, "stdev": 0.2 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.4, "rtt_worst": 2.8, "stdev": 0.4 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 10.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.4, "rtt_worst": 3.8, "stdev": 0.5 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.8, "rtt_best": 2.3, "rtt_worst": 3.3, "stdev": 0.3 }, { "hop": 5, "ip": "2001:730:2209:7::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.6, "rtt_best": 4.1, "rtt_worst": 5.3, "stdev": 0.4 }, { "hop": 6, "ip": "2001:730:2200::5474:8007", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.8, "rtt_best": 4.4, "rtt_worst": 5.2, "stdev": 0.3 }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.5, "rtt_best": 25.4, "rtt_worst": 56.6, "stdev": 10.5 }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.4, "rtt_best": 25.1, "rtt_worst": 25.8, "stdev": 0.2 }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 44.1, "rtt_best": 43.5, "rtt_worst": 44.7, "stdev": 0.4 }, { "hop": 10, "ip": "2a0b:4040::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 43.8, "rtt_best": 43.4, "rtt_worst": 44.2, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 2.626 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.383 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.158 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.409 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.575 }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "rtt_ms": 25.627 }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "rtt_ms": 25.995 }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "rtt_ms": 44.535 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 2.626ms ", " 1: 2a00:8642:42::3 1.383ms ", " 2: gw.friends.steffann.nl 2.158ms ", " 3: 2a00:1ca8:1::194 3.409ms ", " 4: 2a03:3f40::10:41 2.575ms ", " 5: no reply", " 6: no reply", " 7: 2001:730:2206:23::d52e:c04d 25.627ms asymm 14 ", " 8: 2a02:2608:ffff:ffff::92 25.995ms asymm 13 ", " 9: 2a02:2608:ffff:ffff::2c 44.535ms asymm 14 ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 42.805, "avg": 43.607, "max": 45.217 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 43.086, "avg": 43.158, "max": 43.269 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.55, 1.027 ], "stars": 0, "raw": "2a00:8642:42::3 1.550 ms 1.027 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.522, 2.461 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.522 ms 2.461 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.412, 1.733 ], "stars": 0, "raw": "2a03:3f40::10:41 2.412 ms 1.733 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:730:2209:7::1", "rtts_ms": [ 4.024, 3.873 ], "stars": 0, "raw": "2001:730:2209:7::1 4.024 ms 3.873 ms", "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:730:2200::5474:8007", "rtts_ms": [ 4.045, 4.212 ], "stars": 0, "raw": "2001:730:2200::5474:8007 4.045 ms 4.212 ms", "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "rtts_ms": [ 25.122, 25.28 ], "stars": 0, "raw": "2001:730:2206:23::d52e:c04d 25.122 ms 25.280 ms", "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "rtts_ms": [ 25.161, 25.478 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::92 25.161 ms 25.478 ms", "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "rtts_ms": [ 44.364, 43.313 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::2c 44.364 ms 43.313 ms", "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 9, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.4, "rtt_best": 1.1, "rtt_worst": 1.6, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.4, "rtt_worst": 2.8, "stdev": 0.4, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 30.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 10.0, "sent": 10, "rtt_avg": 3.1, "rtt_best": 2.4, "rtt_worst": 3.8, "stdev": 0.5, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.8, "rtt_best": 2.3, "rtt_worst": 3.3, "stdev": 0.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2001:730:2209:7::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.6, "rtt_best": 4.1, "rtt_worst": 5.3, "stdev": 0.4, "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null }, { "hop": 6, "ip": "2001:730:2200::5474:8007", "loss_pct": 0.0, "sent": 10, "rtt_avg": 4.8, "rtt_best": 4.4, "rtt_worst": 5.2, "stdev": 0.3, "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.5, "rtt_best": 25.4, "rtt_worst": 56.6, "stdev": 10.5, "asn": 6830, "asname": "LibertyGlobal - Liberty Global Europe Holding B.V., NL", "ptr": null }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.4, "rtt_best": 25.1, "rtt_worst": 25.8, "stdev": 0.2, "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 44.1, "rtt_best": 43.5, "rtt_worst": 44.7, "stdev": 0.4, "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null }, { "hop": 10, "ip": "2a0b:4040::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 43.8, "rtt_best": 43.4, "rtt_worst": 44.2, "stdev": 0.3, "asn": 202676, "asname": "BRZNET - BIZNET DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 2.626 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.383 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.158 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.409 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.575 }, { "hop": 7, "ip": "2001:730:2206:23::d52e:c04d", "rtt_ms": 25.627 }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::92", "rtt_ms": 25.995 }, { "hop": 9, "ip": "2a02:2608:ffff:ffff::2c", "rtt_ms": 44.535 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 2.626ms ", " 1: 2a00:8642:42::3 1.383ms ", " 2: gw.friends.steffann.nl 2.158ms ", " 3: 2a00:1ca8:1::194 3.409ms ", " 4: 2a03:3f40::10:41 2.575ms ", " 5: no reply", " 6: no reply", " 7: 2001:730:2206:23::d52e:c04d 25.627ms asymm 14 ", " 8: 2a02:2608:ffff:ffff::92 25.995ms asymm 13 ", " 9: 2a02:2608:ffff:ffff::2c 44.535ms asymm 14 ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 202676, "origin_asname": "BRZNET - BIZNET DOO, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:2608:ffff:ffff::2c", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 9, "last_te_ip": "2a02:2608:ffff:ffff::2c", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2a00:8642:1000:f000::1" }, { "ttl": 3, "result": "time_exceeded", "from": "2a00:1ca8:1::194" }, { "ttl": 4, "result": "time_exceeded", "from": "2a03:3f40::10:41" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:730:2209:7::1" }, { "ttl": 6, "result": "time_exceeded", "from": "2001:730:2200::5474:8007" }, { "ttl": 7, "result": "time_exceeded", "from": "2001:730:2206:23::d52e:c04d" }, { "ttl": 8, "result": "time_exceeded", "from": "2a02:2608:ffff:ffff::92" }, { "ttl": 9, "result": "time_exceeded", "from": "2a02:2608:ffff:ffff::2c" }, { "ttl": 10, "result": "echo_reply", "from": "2a0b:4040::1" }, { "ttl": 11, "result": "echo_reply", "from": "2a0b:4040::1" }, { "ttl": 12, "result": "echo_reply", "from": "2a0b:4040::1" }, { "ttl": 13, "result": "echo_reply", "from": "2a0b:4040::1" } ], "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:10Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "185.55.159.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BRZNET", "org": null, "category": "PA" }, { "prefix": "2a0b:4040::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-BIZNET-20260126", "org": "BRZNET", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a0b:4040::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 202676, "prefix_len": 29, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 205007, "holder": "ESERVER-RS Maxim Azarov trading as eServer", "prefixes_v6": [ "2a10:9686::/32", "2a04:b540:3000::/36", "2a09:31c0:babe::/48" ], "trace_only": false, "primary_target_ip": "2a04:b540:3000:2::3", "target_ip": "2a04:b540:3000:2::3", "target_host": "(SPF ip6: literal)", "target_source": "dns-spf-ipv6", "targets": [ { "ip": "2a04:b540:3000:2::3", "host": "(SPF ip6: literal)", "source": "dns-spf-ipv6", "prefix": "2a04:b540:3000::/36", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.772, "avg": 31.408, "max": 31.878 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.655, "avg": 30.84, "max": 31.109 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.095, 1.332 ], "stars": 0, "raw": "2a00:8642:42::3 1.095 ms 1.332 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.466, 2.162 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.466 ms 2.162 ms" }, { "hop": 4, "ip": "2a03:3f40::10:33", "rtts_ms": [ 5.316, 5.58 ], "stars": 0, "raw": "2a03:3f40::10:33 5.316 ms 5.580 ms" }, { "hop": 5, "ip": "2001:7f8:1::a500:8400:1", "rtts_ms": [ 22.64, 22.691 ], "stars": 0, "raw": "2001:7f8:1::a500:8400:1 22.640 ms 22.691 ms" }, { "hop": 6, "ip": "2a00:e90::212:200:5:7", "rtts_ms": [ 31.953, 31.58 ], "stars": 0, "raw": "2a00:e90::212:200:5:7 31.953 ms 31.580 ms" }, { "hop": 7, "ip": "2a00:e90::212:200:6:8", "rtts_ms": [ 31.504, 35.716 ], "stars": 0, "raw": "2a00:e90::212:200:6:8 31.504 ms 35.716 ms" }, { "hop": 8, "ip": "2a00:e90::212:200:6:60", "rtts_ms": [ 31.691, 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"hop": 12, "ip": "service-1.rs.eserver.net", "rtt_ms": 31.709 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.039ms pmtu 1500", " 1: 2a00:8642:42::3 1.281ms ", " 1: 2a00:8642:42::3 1.376ms ", " 2: gw.friends.steffann.nl 2.721ms ", " 3: 2a00:1ca8:1::194 3.215ms ", " 4: 2a03:3f40::10:33 14.530ms ", " 5: 2001:7f8:1::a500:8400:1 23.243ms ", " 6: 2a00:e90::212:200:5:7 32.783ms asymm 11 ", " 7: 2a00:e90::212:200:6:8 32.141ms asymm 10 ", " 8: 2a00:e90::212:200:6:60 32.629ms ", " 9: no reply", "10: 2a02:e40::23 32.072ms asymm 7 ", "11: 2a02:e40::100:e 32.419ms asymm 8 ", "12: service-1.rs.eserver.net 31.709ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 32.23133087158203 }, { "port": 80, "open": true, "rtt_ms": 31.34608268737793 } ], "origin_asn": 205007, "origin_asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "rate_limited_hops": [ 9, 10 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:e40::100:e", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:02Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "size_before": 156, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 1454, "size_after": 1454 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "size_before": 295, "size_after": null } ], "matrix": { "http": { "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "port": 80, "max_before": 295 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 1454, "max_after": 1454 }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "max_before": 156 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a04:b540:3000::/36", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RS-ESERVER", "org": null, "category": "PA" }, { "prefix": "2a09:31c0:babe::/48", "family": "v6", "status": "ASSIGNED", "netname": "VPS1-RS", "org": null, "category": "unknown" }, { "prefix": "2a10:9686::/32", "family": "v6", "status": "ASSIGNED", "netname": "RS-ALEXGROUP-RS", "org": null, "category": "unknown" }, { "prefix": "87.121.38.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "BG-NETERRAIP-20050712", "org": null, "category": "PA" }, { "prefix": "194.87.85.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.250.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" }, { "prefix": "195.133.18.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.251.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a04:b540:3000::/36", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 36, "maxLength": 36, "ta": "ripe" } ] }, { "prefix": "2a10:9686::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a09:31c0:babe::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 207604, "holder": "UNITED United Internet Ltd.", "prefixes_v6": [ "2a0c:bf80:5a::/48" ], "trace_only": false, "primary_target_ip": "2a0c:bf80:5a::1", "target_ip": "2a0c:bf80:5a::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:bf80:5a::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:bf80:5a::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.358, "avg": 49.054, "max": 50.502 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.131, "avg": 48.312, "max": 48.49 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.102, 0.957 ], "stars": 0, "raw": "2a00:8642:42::3 1.102 ms 0.957 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.867, 2.406 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.867 ms 2.406 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.263, 2.503 ], "stars": 0, "raw": "2a03:3f40::10:41 2.263 ms 2.503 ms" }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtts_ms": [ 47.143, 47.081 ], "stars": 0, "raw": "2001:b28:3ff::32cb:0:1 47.143 ms 47.081 ms" }, { "hop": 6, "ip": "2001:7f8:1e::83", "rtts_ms": [ 47.377, 47.457 ], "stars": 0, "raw": "2001:7f8:1e::83 47.377 ms 47.457 ms" }, { "hop": 7, "ip": "2a0c:bf80:5a::3", "rtts_ms": [ 43.903, 44.242 ], "stars": 0, "raw": "2a0c:bf80:5a::3 43.903 ms 44.242 ms" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.3, "rtt_worst": 1.8, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.4, "rtt_worst": 3.7, "stdev": 0.4 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.4, "rtt_best": 2.4, "rtt_worst": 7.9, "stdev": 1.6 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.8, "rtt_best": 47.4, "rtt_worst": 48.2, "stdev": 0.3 }, { "hop": 6, "ip": "2001:7f8:1e::83", "loss_pct": 0.0, "sent": 10, "rtt_avg": 49.7, "rtt_best": 49.4, "rtt_worst": 50.2, "stdev": 0.2 }, { "hop": 7, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 49.2, "rtt_best": 48.9, "rtt_worst": 49.5, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.603 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.311 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.573 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.036 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 11.207 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtt_ms": 47.604 }, { "hop": 6, "ip": "united-internet.sox.rs", "rtt_ms": 47.039 }, { "hop": 7, "ip": "2a0c:bf80:5a::3", "rtt_ms": 47.388 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: 2a00:8642:42::3 1.603ms ", " 1: 2a00:8642:42::3 1.311ms ", " 2: gw.friends.steffann.nl 2.573ms ", " 3: 2a00:1ca8:1::194 3.036ms ", " 4: 2a03:3f40::10:41 11.207ms ", " 5: 2001:b28:3ff::32cb:0:1 47.604ms ", " 6: united-internet.sox.rs 47.039ms ", " 7: 2a0c:bf80:5a::3 47.388ms reached", " Resume: pmtu 1500 hops 7 back 6 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.358, "avg": 49.054, "max": 50.502 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.131, "avg": 48.312, "max": 48.49 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.102, 0.957 ], "stars": 0, "raw": "2a00:8642:42::3 1.102 ms 0.957 ms", "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.867, 2.406 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.867 ms 2.406 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.263, 2.503 ], "stars": 0, "raw": "2a03:3f40::10:41 2.263 ms 2.503 ms", "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtts_ms": [ 47.143, 47.081 ], "stars": 0, "raw": "2001:b28:3ff::32cb:0:1 47.143 ms 47.081 ms", "asn": 31500, "asname": "GNM-AS - Global Network Management Inc, AG", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:7f8:1e::83", "rtts_ms": [ 47.377, 47.457 ], "stars": 0, "raw": "2001:7f8:1e::83 47.377 ms 47.457 ms", "asn": 13004, "asname": "Serbian Open eXchange", "ptr": "united-internet.sox.rs", "ixp": "sox", "ixp_member_asn": 13004, "ixp_member_name": "Serbian Open eXchange", "six": true, "six_member_asn": 13004, "six_member_name": "Serbian Open eXchange", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a0c:bf80:5a::3", "rtts_ms": [ 43.903, 44.242 ], "stars": 0, "raw": "2a0c:bf80:5a::3 43.903 ms 44.242 ms", "asn": 207604, "asname": "UNITED - United Internet Ltd., RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.3, "rtt_worst": 1.8, "stdev": 0.2, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": null }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.4, "rtt_worst": 3.7, "stdev": 0.4, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.4, "rtt_best": 2.4, "rtt_worst": 7.9, "stdev": 1.6, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.8, "rtt_best": 47.4, "rtt_worst": 48.2, "stdev": 0.3, "asn": 31500, "asname": "GNM-AS - Global Network Management Inc, AG", "ptr": null }, { "hop": 6, "ip": "2001:7f8:1e::83", "loss_pct": 0.0, "sent": 10, "rtt_avg": 49.7, "rtt_best": 49.4, "rtt_worst": 50.2, "stdev": 0.2, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "united-internet.sox.rs" }, { "hop": 7, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 49.2, "rtt_best": 48.9, "rtt_worst": 49.5, "stdev": 0.2, "asn": 207604, "asname": "UNITED - United Internet Ltd., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.603 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.311 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.573 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 3.036 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 11.207 }, { "hop": 5, "ip": "2001:b28:3ff::32cb:0:1", "rtt_ms": 47.604 }, { "hop": 6, "ip": "united-internet.sox.rs", "rtt_ms": 47.039 }, { "hop": 7, "ip": "2a0c:bf80:5a::3", "rtt_ms": 47.388 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: 2a00:8642:42::3 1.603ms ", " 1: 2a00:8642:42::3 1.311ms ", " 2: gw.friends.steffann.nl 2.573ms ", " 3: 2a00:1ca8:1::194 3.036ms ", " 4: 2a03:3f40::10:41 11.207ms ", " 5: 2001:b28:3ff::32cb:0:1 47.604ms ", " 6: united-internet.sox.rs 47.039ms ", " 7: 2a0c:bf80:5a::3 47.388ms reached", " Resume: pmtu 1500 hops 7 back 6 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 207604, "origin_asname": "UNITED - United Internet Ltd., RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:7f8:1e:8::34", "edge_router_ttl": 9, "edge_pings": false, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:10Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "185.119.91.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.7.32.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "2a0c:bf80:5a::/48", "family": "v6", "status": "ASSIGNED", "netname": "RS-UNLIMITED", "org": null, "category": "unknown" }, { "prefix": "185.119.90.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.212.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.214.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.89.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.88.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-NL", "org": "United Internet Ltd.", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a0c:bf80:5a::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 12459, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 207604, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": true }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "go6lab", "asn": 208398, "holder": "TELETECH Edge Technology Plus d.o.o. Beograd", "prefixes_v6": [ "2a02:6b8::/32", "2a02:6b8:4::/48", "2a02:6b8:a::/48", "2a0e:fd87::/32", "2a0e:fd80::/32", "2a02:6b8:e::/48", "2a02:6b8:5::/48", "2a02:6b8:215::/48", "2a02:6b8:23::/48", "2a02:6b8:b::/48", "2a02:6b8::/29", "2a02:6b8:c::/48", "2a02:6b8:22::/48", "2a02:6b8:8::/48", "2a02:6b8:d::/48", "2a02:6b8:21::/48", "2a02:6b8:20::/48", "2a02:6b8:6::/48" ], "trace_only": false, "primary_target_ip": "2a02:6b8::1", "target_ip": "2a02:6b8::1", "target_host": "ns1.yandex.net", "target_source": "dns-ns", "targets": [ { "ip": "2a02:6b8::1", "host": "ns1.yandex.net", "source": "dns-ns", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 40.54, "avg": 40.653, "max": 40.777 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 40.228, "avg": 40.369, "max": 40.52 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 1.105, 1.022 ], "stars": 0, "raw": "2a00:8642:42::3 1.105 ms 1.022 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.425, 2.425 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.425 ms 2.425 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.27, 2.546 ], "stars": 0, "raw": "2a03:3f40::10:41 2.270 ms 2.546 ms" }, { "hop": 5, "ip": "2001:978:2:40::3:1", "rtts_ms": [ 4.271 ], "stars": 1, "raw": "* 2001:978:2:40::3:1 4.271 ms" }, { "hop": 6, "ip": "2001:550:0:1000::8275:109", "rtts_ms": [ 4.412 ], "stars": 1, "raw": "* 2001:550:0:1000::8275:109 4.412 ms" }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3d2a", "rtts_ms": [ 5.197 ], "stars": 1, "raw": "2001:550:0:1000::9a36:3d2a 5.197 ms *" }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "rtts_ms": [ 5.428, 5.57 ], "stars": 0, "raw": "2001:978:2:2c::6c:2 5.428 ms 5.570 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.6, "rtt_best": 1.3, "rtt_worst": 2.2, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.1, "rtt_worst": 3.1, "stdev": 0.3 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.0, "rtt_best": 2.9, "rtt_worst": 3.3, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.3, "rtt_worst": 3.6, "stdev": 0.4 }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3d2a", "loss_pct": 80.0, "sent": 10, "rtt_avg": 5.8, "rtt_best": 5.6, "rtt_worst": 6.1, "stdev": 0.3 }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.5, "rtt_best": 4.9, "rtt_worst": 6.3, "stdev": 0.4 }, { "hop": 9, "ip": "2a02:6b8:0:1807::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 54.1, "rtt_best": 44.0, "rtt_worst": 93.8, "stdev": 15.3 }, { "hop": 10, "ip": "2a02:6b8::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.2, "rtt_best": 40.8, "rtt_worst": 41.5, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.982 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.361 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.332 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.706 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.611 }, { "hop": 7, "ip": "be2020.rcr21.b021535-1.ams03.atlas.cogentco.com", "rtt_ms": 5.668 }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "rtt_ms": 5.646 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 1.982ms ", " 1: 2a00:8642:42::3 1.361ms ", " 2: gw.friends.steffann.nl 2.332ms ", " 3: 2a00:1ca8:1::194 2.706ms ", " 4: 2a03:3f40::10:41 2.611ms ", " 5: no reply", " 6: no reply", " 7: be2020.rcr21.b021535-1.ams03.atlas.cogentco.com 5.668ms ", " 8: 2001:978:2:2c::6c:2 5.646ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:1::1", "host": "ns2.yandex.net", "source": "dns-ns", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 39.716, "avg": 39.807, "max": 39.933 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 39.796, "avg": 39.953, "max": 40.109 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "rtts_ms": [ 0.865, 0.961 ], "stars": 0, "raw": "2a00:8642:42::3 0.865 ms 0.961 ms" }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "rtts_ms": [ 2.098, 1.94 ], "stars": 0, "raw": "2a00:8642:1000:f000::1 2.098 ms 1.940 ms" }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtts_ms": [ 2.306, 2.283 ], "stars": 0, "raw": "2a00:1ca8:1::194 2.306 ms 2.283 ms" }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtts_ms": [ 2.151, 1.818 ], "stars": 0, "raw": "2a03:3f40::10:41 2.151 ms 1.818 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "rtts_ms": [ 5.494, 5.646 ], "stars": 0, "raw": "2001:978:2:2c::6c:2 5.494 ms 5.646 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a00:8642:42::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.7, "rtt_best": 1.4, "rtt_worst": 2.2, "stdev": 0.3 }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.1, "rtt_worst": 3.1, "stdev": 0.4 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.0, "rtt_best": 2.7, "rtt_worst": 3.4, "stdev": 0.2 }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.2, "rtt_best": 2.5, "rtt_worst": 7.4, "stdev": 1.5 }, { "hop": 5, "ip": "2001:978:2:40::3:1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 4.4, "rtt_best": 4.3, "rtt_worst": 4.5, "stdev": 0.1 }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3d2a", "loss_pct": 60.0, "sent": 10, "rtt_avg": 5.9, 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Steffann, NL", "ptr": null }, { "hop": 2, "ip": "2a00:8642:1000:f000::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.5, "rtt_best": 2.1, "rtt_worst": 3.1, "stdev": 0.3, "asn": 203993, "asname": "STEFFANN-DC-AS - S.J.M. Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 0.0, "sent": 10, "rtt_avg": 3.0, "rtt_best": 2.9, "rtt_worst": 3.3, "stdev": 0.1, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.3, "rtt_worst": 3.6, "stdev": 0.4, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 7, "ip": "2001:550:0:1000::9a36:3d2a", "loss_pct": 80.0, "sent": 10, "rtt_avg": 5.8, "rtt_best": 5.6, "rtt_worst": 6.1, "stdev": 0.3, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be2175.rcr21.b021535-1.ams03.atlas.cogentco.com" }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.5, "rtt_best": 4.9, "rtt_worst": 6.3, "stdev": 0.4, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": null }, { "hop": 9, "ip": "2a02:6b8:0:1807::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 54.1, "rtt_best": 44.0, "rtt_worst": 93.8, "stdev": 15.3, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": null }, { "hop": 10, "ip": "2a02:6b8::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.2, "rtt_best": 40.8, "rtt_worst": 41.5, "stdev": 0.2, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": "ns1.yandex.net" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.982 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.361 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.332 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.706 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.611 }, { "hop": 7, "ip": "be2020.rcr21.b021535-1.ams03.atlas.cogentco.com", "rtt_ms": 5.668 }, { "hop": 8, "ip": "2001:978:2:2c::6c:2", "rtt_ms": 5.646 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: 2a00:8642:42::3 1.982ms ", " 1: 2a00:8642:42::3 1.361ms ", " 2: gw.friends.steffann.nl 2.332ms ", " 3: 2a00:1ca8:1::194 2.706ms ", " 4: 2a03:3f40::10:41 2.611ms ", " 5: no reply", " 6: no reply", " 7: be2020.rcr21.b021535-1.ams03.atlas.cogentco.com 5.668ms ", " 8: 2001:978:2:2c::6c:2 5.646ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 13238, "origin_asname": "YANDEX - YANDEX LLC, RU", "rate_limited_hops": [ 7 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:5f80:4::225:147", "edge_router_ttl": 11, "edge_pings": false, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:44Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "size_before": 133, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "max_before": 133 }, "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a02:6b8:5::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-5--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:8::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-8--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:6::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-6--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:b::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-b--48", "org": "Kazbek Bi street, Almaty, Kazakhstan", "category": "unknown" }, { "prefix": "2a02:6b8:e::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-e--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd80::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:21::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-21--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:d::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-d--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:a::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-a--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:22::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-22--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:23::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-23--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:215::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-215--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd87::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:4::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-4--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:20::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-20--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:c::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-c--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "45.87.132.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "95.108.128.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20081209", "org": null, "category": "PA" }, { "prefix": "37.9.112.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-37-9-112-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "87.250.247.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-87-250-247-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "37.9.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20111214", "org": null, "category": "PA" }, { "prefix": "178.154.131.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-178-154-131-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "77.88.55.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-77-88-55-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "5.45.192.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20120525", "org": null, "category": "PA" }, { "prefix": "178.154.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20100506", "org": null, "category": "PA" }, { "prefix": "141.8.128.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20110621", "org": null, "category": "PA" }, { "prefix": "92.255.112.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20071224", "org": null, "category": "PA" }, { "prefix": "87.250.255.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-87-250-255-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "5.255.197.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20120914", "org": null, "category": "PA" }, { "prefix": "213.180.192.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20000413", "org": null, "category": "PA" }, { "prefix": "199.36.240.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELETECH-20100930", "org": null, "category": "PA" }, { "prefix": "213.180.199.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-213-180-199-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "77.88.0.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20070315", "org": null, "category": "PA" }, { "prefix": "185.32.187.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20130808", "org": null, "category": "PA" }, { "prefix": "37.9.87.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-37-9-87-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "37.140.128.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20120229", "org": null, "category": "PA" }, { "prefix": "5.45.202.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-5-45-202-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "5.255.255.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-5-255-255-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "5.255.192.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20120914", "org": null, "category": "PA" }, { "prefix": "84.252.160.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20040916", "org": null, 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Steffann, NL", "ptr": "gw.friends.steffann.nl", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:1ca8:1::194", "loss_pct": 10.0, "sent": 10, "rtt_avg": 3.0, "rtt_best": 2.4, "rtt_worst": 3.4, "stdev": 0.3, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 4, "ip": "2a03:3f40::10:41", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.9, "rtt_best": 2.3, "rtt_worst": 4.0, "stdev": 0.5, "asn": 50673, "asname": "Serverius-as - Serverius Holding B.V., NL", "ptr": null }, { "hop": 5, "ip": "2001:978:2:40::3:1", "loss_pct": 50.0, "sent": 10, "rtt_avg": 4.4, "rtt_best": 4.0, "rtt_worst": 4.8, "stdev": 0.4, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": null }, { "hop": 7, "ip": "2001:550:0:1000::9a36:4b99", "loss_pct": 70.0, "sent": 10, "rtt_avg": 13.3, "rtt_best": 12.9, "rtt_worst": 13.5, "stdev": 0.3, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be3530.ccr81.lon05.atlas.cogentco.com" }, { "hop": 9, "ip": "2001:550:0:1000::9a36:1e72", "loss_pct": 0.0, "sent": 10, "rtt_avg": 79.8, "rtt_best": 79.0, "rtt_worst": 81.2, "stdev": 0.8, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "be2967.rcr22.ewr03.atlas.cogentco.com" }, { "hop": 10, "ip": "2001:550:0:1000::9a18:359e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 80.1, "rtt_best": 79.2, "rtt_worst": 82.6, "stdev": 1.0, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": "hu0-0-0-37.nr61.b023809-0.ewr03.atlas.cogentco.com" }, { "hop": 11, "ip": "2001:550:2:3f::c6:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 74.5, "rtt_best": 74.2, "rtt_worst": 75.0, "stdev": 0.3, "asn": 174, "asname": "COGENT-174 - Cogent Communications, LLC, US", "ptr": null }, { "hop": 12, "ip": "2a12:6c42::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 78.9, "rtt_best": 78.3, "rtt_worst": 79.8, "stdev": 0.4, "asn": 216024, "asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.044 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.854 }, { "hop": 1, "ip": "2a00:8642:42::3", "rtt_ms": 1.358 }, { "hop": 2, "ip": "gw.friends.steffann.nl", "rtt_ms": 2.56 }, { "hop": 3, "ip": "2a00:1ca8:1::194", "rtt_ms": 2.995 }, { "hop": 4, "ip": "2a03:3f40::10:41", "rtt_ms": 2.939 }, { "hop": 7, "ip": "be9036.ccr82.lon05.atlas.cogentco.com", "rtt_ms": 13.219 }, { "hop": 9, "ip": "be2273.rcr21.ewr03.atlas.cogentco.com", "rtt_ms": 80.808 }, { "hop": 10, "ip": "hu0-0-0-37.nr61.b023809-0.ewr03.atlas.cogentco.com", "rtt_ms": 79.375 }, { "hop": 11, "ip": "2001:550:2:3f::c6:2", "rtt_ms": 74.227 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.044ms pmtu 1500", " 1: 2a00:8642:42::3 1.854ms ", " 1: 2a00:8642:42::3 1.358ms ", " 2: gw.friends.steffann.nl 2.560ms ", " 3: 2a00:1ca8:1::194 2.995ms ", " 4: 2a03:3f40::10:41 2.939ms ", " 5: no reply", " 6: no reply", " 7: be9036.ccr82.lon05.atlas.cogentco.com 13.219ms ", " 8: no reply", " 9: be2273.rcr21.ewr03.atlas.cogentco.com 80.808ms ", "10: hu0-0-0-37.nr61.b023809-0.ewr03.atlas.cogentco.com 79.375ms ", "11: 2001:550:2:3f::c6:2 74.227ms asymm 7 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 216024, "origin_asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "rate_limited_hops": [ 3, 5, 7 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:afc0:3:1002::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:11Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a12:6c40::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "SG-ALEXGROUP", "org": null, "category": "PA" }, { "prefix": "2a11:c880::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-ALEXGROUP-20210901", "org": null, "category": "PA" }, { "prefix": "2a0f:cdc6:2030::/45", "family": "v6", "status": "ASSIGNED", "netname": "TUN_NL_AMS_ITNETPASS_v6", "org": null, "category": "unknown" }, { "prefix": "2a12:6c42::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "194.87.189.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "2a10:9683::/32", "family": "v6", "status": "ASSIGNED", "netname": "US-ALEXGROUP", "org": null, "category": "unknown" }, { "prefix": "195.133.2.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.23.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-FI", "org": null, "category": "PA" }, { "prefix": "45.129.143.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "176.98.191.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "146.255.188.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP-20210830", "org": null, "category": "PA" }, { "prefix": "109.107.171.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "193.38.235.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "193.124.203.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.22.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-US", "org": null, "category": "PA" }, { "prefix": "109.107.182.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "195.133.28.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "195.133.26.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "185.142.33.0/24", "family": "v4", "status": "SUB-ALLOCATED PA", "netname": "DE-KVMKA", "org": null, "category": "PA" }, { "prefix": "217.65.79.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP3-20250709", "org": null, "category": "PA" }, { "prefix": "77.221.145.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 4, "invalid": 0, "not_found": 1, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2a12:6c40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a11:c880::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 52000, "prefix_len": 29, "maxLength": 29, "ta": "ripe" }, { "asn": 216024, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a0f:cdc6:2030::/45", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] }, { "prefix": "2a10:9683::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a12:6c42::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 6700, "holder": "BEOTEL-AS TELEKOM SRBIJA a.d.", "prefixes_v6": [ "2a02:e40::/32", "2001:8c8::/32" ], "trace_only": false, "primary_target_ip": "2a02:e40::25", "target_ip": "2a02:e40::25", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a02:e40::25", "host": "(probe)", "source": "probe", "prefix": "2a02:e40::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.582, "avg": 50.689, "max": 50.763 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.602, "avg": 50.713, "max": 50.757 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.177, 10.214 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.177 ms 10.214 ms" }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 25.911, 25.823 ], "stars": 0, "raw": "2a03:b020::222 25.911 ms 25.823 ms" }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 49.96, 49.876 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 49.960 ms 49.876 ms" }, { "hop": 7, "ip": "2a00:e90:0:c::d", "rtts_ms": [ 35.783, 35.698 ], "stars": 0, "raw": "2a00:e90:0:c::d 35.783 ms 35.698 ms" }, { "hop": 8, "ip": "2a02:e40::23", "rtts_ms": [ 50.659, 50.554 ], "stars": 0, "raw": "2a02:e40::23 50.659 ms 50.554 ms" }, { "hop": 9, "ip": "2a02:e40::25", "rtts_ms": [ 50.671, 50.754 ], "stars": 0, "raw": "2a02:e40::25 50.671 ms 50.754 ms" } ], "last_responsive_hop": 9, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.2 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.4, "rtt_worst": 10.4, "stdev": 0.0 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.9, "rtt_best": 10.6, "rtt_worst": 11.3, "stdev": 0.2 }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.7, "rtt_best": 26.5, "rtt_worst": 27.0, "stdev": 0.2 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.6, "rtt_best": 50.3, "rtt_worst": 51.1, "stdev": 0.2 }, { "hop": 7, "ip": "2a00:e90:0:c::d", "loss_pct": 90.0, "sent": 10, "rtt_avg": 36.1, "rtt_best": 36.1, "rtt_worst": 36.1, "stdev": 0.0 }, { "hop": 8, "ip": "2a02:e40::23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.3, "rtt_best": 51.1, "rtt_worst": 51.5, "stdev": 0.1 }, { "hop": 9, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.1, "rtt_best": 50.9, "rtt_worst": 51.3, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.689 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.761 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.282 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.879 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 26.558 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 50.47 }, { "hop": 7, "ip": "2a00:e90:0:c::d", "rtt_ms": 35.954 }, { "hop": 8, "ip": "2a02:e40::23", "rtt_ms": 51.091 }, { "hop": 9, "ip": "2a02:e40::25", "rtt_ms": 51.015 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.689ms ", " 2: 2a12:d8c0:109f:121::a1 0.761ms ", " 3: 2a12:d8c0:101f:6::1 10.282ms ", " 4: 2a03:b020:1:51::a 10.879ms ", " 5: 2a03:b020::222 26.558ms ", " 6: 2a03:5f80:4:2::237:40 50.470ms ", " 7: 2a00:e90:0:c::d 35.954ms asymm 10 ", " 8: 2a02:e40::23 51.091ms ", " 9: 2a02:e40::25 51.015ms reached", " Resume: pmtu 1500 hops 9 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 50.542354583740234 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 50.52900314331055 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.582, "avg": 50.689, "max": 50.763 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.602, "avg": 50.713, "max": 50.757 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 90.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.177, 10.214 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.177 ms 10.214 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 25.911, 25.823 ], "stars": 0, "raw": "2a03:b020::222 25.911 ms 25.823 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 49.96, 49.876 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 49.960 ms 49.876 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a00:e90:0:c::d", "rtts_ms": [ 35.783, 35.698 ], "stars": 0, "raw": "2a00:e90:0:c::d 35.783 ms 35.698 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 90.0 }, { "hop": 8, "ip": "2a02:e40::23", "rtts_ms": [ 50.659, 50.554 ], "stars": 0, "raw": "2a02:e40::23 50.659 ms 50.554 ms", "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a02:e40::25", "rtts_ms": [ 50.671, 50.754 ], "stars": 0, "raw": "2a02:e40::25 50.671 ms 50.754 ms", "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 9, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 80.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.4, "rtt_worst": 10.4, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.9, "rtt_best": 10.6, "rtt_worst": 11.3, "stdev": 0.2, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.7, "rtt_best": 26.5, "rtt_worst": 27.0, "stdev": 0.2, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.6, "rtt_best": 50.3, "rtt_worst": 51.1, "stdev": 0.2, "asn": null, "asname": "NA", "ptr": null }, { "hop": 7, "ip": "2a00:e90:0:c::d", "loss_pct": 90.0, "sent": 10, "rtt_avg": 36.1, "rtt_best": 36.1, "rtt_worst": 36.1, "stdev": 0.0, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 8, "ip": "2a02:e40::23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.3, "rtt_best": 51.1, "rtt_worst": 51.5, "stdev": 0.1, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 9, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.1, "rtt_best": 50.9, "rtt_worst": 51.3, "stdev": 0.1, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.689 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.761 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.282 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.879 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 26.558 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 50.47 }, { "hop": 7, "ip": "2a00:e90:0:c::d", "rtt_ms": 35.954 }, { "hop": 8, "ip": "2a02:e40::23", "rtt_ms": 51.091 }, { "hop": 9, "ip": "2a02:e40::25", "rtt_ms": 51.015 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.689ms ", " 2: 2a12:d8c0:109f:121::a1 0.761ms ", " 3: 2a12:d8c0:101f:6::1 10.282ms ", " 4: 2a03:b020:1:51::a 10.879ms ", " 5: 2a03:b020::222 26.558ms ", " 6: 2a03:5f80:4:2::237:40 50.470ms ", " 7: 2a00:e90:0:c::d 35.954ms asymm 10 ", " 8: 2a02:e40::23 51.091ms ", " 9: 2a02:e40::25 51.015ms reached", " Resume: pmtu 1500 hops 9 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 50.542354583740234 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 50.52900314331055 } ], "origin_asn": 6700, "origin_asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "rate_limited_hops": [ 3, 7 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:e90::212:200:6:60", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:04Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a02:e40::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20090508", "org": null, "category": "PA" }, { "prefix": "2001:8c8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20020829", "org": null, "category": "PA" }, { "prefix": "213.244.232.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20030611", "org": null, "category": "PA" }, { "prefix": "195.252.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-971112", "org": null, "category": "PA" }, { "prefix": "62.193.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20000821", "org": null, "category": "PA" }, { "prefix": "178.20.205.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100304", "org": null, "category": "PA" }, { "prefix": "194.106.170.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BEOTEL-NET", "org": "Beotel Net ISP", "category": "PA" }, { "prefix": "185.47.210.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet", "org": null, "category": "PA" }, { "prefix": "62.108.96.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20010904", "org": null, "category": "PA" }, { "prefix": "91.223.162.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RS-TELEKOM-BEONET", "org": null, "category": "PI" }, { "prefix": "91.148.72.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "91.148.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "62.108.103.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet-Lopas", "org": null, "category": "PA" }, { "prefix": "217.26.64.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20001016", "org": null, "category": "PA" }, { "prefix": "194.106.160.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-951108", "org": null, "category": "PA" }, { "prefix": "194.106.166.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Beotel_Subotica", "org": "BeotelNet DPI Subotica", "category": "PA" }, { "prefix": "62.108.107.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Link_016_Lebane", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 2, "invalid": 0, "not_found": 0, "unknown": 0, "total": 2 }, "prefixes": [ { "prefix": "2001:8c8::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a02:e40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 8400, "holder": "TELEKOM-AS TELEKOM SRBIJA a.d.", "prefixes_v6": [ "2a00:e90::/32", "2a06:5b00::/29", "2a06:63c0::/29" ], "trace_only": false, "primary_target_ip": "2a06:63c0::1", "target_ip": "2a06:63c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a06:63c0::1", "host": "(probe)", "source": "probe", "prefix": "2a06:63c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.548, "avg": 35.898, "max": 36.726 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.472, "avg": 35.582, "max": 35.684 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.228, 0.239 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.228 ms 0.239 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.339, 0.378 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.339 ms 0.378 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.931, 9.851 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.931 ms 9.851 ms" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.15, 10.033 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.150 ms 10.033 ms" }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 25.862, 25.786 ], "stars": 0, "raw": "2a03:b020::222 25.862 ms 25.786 ms" }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 49.968, 49.927 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 49.968 ms 49.927 ms" }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtts_ms": [ 35.633, 35.609 ], "stars": 0, "raw": "2a00:e90::212:200:6:9 35.633 ms 35.609 ms" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtts_ms": [ 35.339, 35.353 ], "stars": 0, "raw": "2a06:63c7::ffff:ffff:ffff:47 35.339 ms 35.353 ms" } ], "last_responsive_hop": 9, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.0 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.9, "rtt_worst": 0.9, "stdev": 0.0 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 10.5, "rtt_best": 10.3, "rtt_worst": 10.6, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.8, "rtt_best": 10.6, "rtt_worst": 10.9, "stdev": 0.1 }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.6, "rtt_best": 26.4, "rtt_worst": 26.9, "stdev": 0.2 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.3, "rtt_best": 50.5, "rtt_worst": 56.1, "stdev": 1.7 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.3, "rtt_best": 36.0, "rtt_worst": 37.3, "stdev": 0.5 }, { "hop": 9, "ip": "2a06:63c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.1, "rtt_best": 35.6, "rtt_worst": 36.9, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.921 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.89 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.433 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.843 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 27.029 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 54.678 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtt_ms": 50.702 }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtt_ms": 35.937 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.921ms ", " 2: 2a12:d8c0:109f:121::a1 0.890ms ", " 3: 2a12:d8c0:101f:6::1 10.433ms ", " 4: 2a03:b020:1:51::a 10.843ms ", " 5: 2a03:b020::222 27.029ms ", " 6: 2a03:5f80:4:2::237:40 54.678ms ", " 7: 2a00:e90::212:200:6:9 50.702ms asymm 8 ", " 8: no reply", " 9: 2a06:63c7::ffff:ffff:ffff:47 35.937ms reached", " Resume: pmtu 1500 hops 9 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 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"edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:30:04Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "size_before": 31, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "max_before": 31 }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "88.218.139.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B3", "org": null, "category": "PA" }, { "prefix": "2001:7f8:1e::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "SOX-IPv6", "org": null, "category": "PI" }, { "prefix": "193.105.163.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": "Todora Dukina 78, 11000 Beograd", "category": "PI" }, { "prefix": "188.120.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PERKE-20090427", "org": null, "category": "PA" }, { "prefix": "91.245.214.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:7f8:1e::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 13004, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", "peering_policy": "Open", "member_type": "peering", "since": "2015-08-20T00:00:00Z", "ipv6": "2001:7f8:1e::1" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", 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"2001:798:1::1b5 18.261 ms 18.176 ms", "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant-gw.zag.hr.geant.net", "mtr_loss_pct": 10.0 }, { "hop": 8, "ip": "2001:798:1::1b6", "rtts_ms": [ 23.841, 23.747 ], "stars": 0, "raw": "2001:798:1::1b6 23.841 ms 23.747 ms", "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant.zag.hr.geant.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 23.904, 23.785 ], "stars": 0, "raw": "2001:4170:1f00:38::2 23.904 ms 23.785 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": "2001:4170:4031::1", "rtts_ms": [ 26.983, 26.85 ], "stars": 0, "raw": "2001:4170:4031::1 26.983 ms 26.850 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 13, "ip": "2001:4170:4018::2", "rtts_ms": [ 26.828, 26.682 ], "stars": 0, "raw": "2001:4170:4018::2 26.828 ms 26.682 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 14, "ip": "2001:4170:2801::1", "rtts_ms": [ 26.63, 26.625 ], "stars": 0, "raw": "2001:4170:2801::1 26.630 ms 26.625 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": "ban.junis.ni.ac.rs", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 14, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.5, "rtt_worst": 0.9, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.7, "rtt_worst": 1.2, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 9.1, "rtt_best": 8.9, "rtt_worst": 9.3, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.1, "rtt_best": 8.1, "rtt_worst": 18.3, "stdev": 3.5, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "ae8-202.RT.CLR.MIL.IT.retn.net" }, { "hop": 5, "ip": "2a02:2d8::57f5:e0c3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 9.3, "rtt_best": 8.3, "rtt_worst": 15.6, "stdev": 2.2, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "RT.CLR.MIL.IT.retn.net" }, { "hop": 6, "ip": "2001:7f8:b:100:1d1:a5d2:965:183", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.4, "rtt_best": 8.0, "rtt_worst": 8.8, "stdev": 0.2, "asn": null, "asname": "NA", "ptr": "geant-v6.mix-it.net" }, { "hop": 7, "ip": "2001:798:1::1b5", "loss_pct": 10.0, "sent": 10, "rtt_avg": 18.9, "rtt_best": 18.7, "rtt_worst": 19.1, "stdev": 0.1, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant-gw.zag.hr.geant.net" }, { "hop": 8, "ip": "2001:798:1::1b6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.5, "rtt_best": 24.2, "rtt_worst": 24.7, "stdev": 0.2, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant.zag.hr.geant.net" }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.6, "rtt_best": 24.5, "rtt_worst": 25.0, "stdev": 0.2, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 12, "ip": "2001:4170:4018::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 27.4, "rtt_best": 27.0, "rtt_worst": 28.2, "stdev": 0.3, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 13, "ip": "2001:4170:4018::2", "loss_pct": 10.0, "sent": 10, "rtt_avg": 27.5, "rtt_best": 27.1, "rtt_worst": 27.7, "stdev": 0.2, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 14, "ip": "2001:4170:2801::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 27.4, "rtt_best": 27.2, "rtt_worst": 27.7, "stdev": 0.1, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": "ban.junis.ni.ac.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 1.074 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.817 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.779 }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "rtt_ms": 9.022 }, { "hop": 4, "ip": "ae8-202.rt.clr.mil.it.retn.net", "rtt_ms": 8.404 }, { "hop": 5, "ip": "rt.clr.mil.it.retn.net", "rtt_ms": 8.683 }, { "hop": 8, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 24.133 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtt_ms": 24.275 }, { "hop": 12, "ip": "2001:4170:4031::1", "rtt_ms": 27.614 }, { "hop": 14, "ip": "ban.junis.ni.ac.rs", "rtt_ms": 27.478 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 1.074ms ", " 1: karsolink-01.net.karsolink.com 0.817ms ", " 2: 2a12:d8c0:109f:121::a1 0.779ms ", " 3: 2a12:d8c0:101f:103::1 9.022ms ", " 4: ae8-202.rt.clr.mil.it.retn.net 8.404ms asymm 5 ", " 5: rt.clr.mil.it.retn.net 8.683ms ", " 6: no reply", " 7: no reply", " 8: amres-ias-geant.zag.hr.geant.net 24.133ms ", " 9: 2001:4170:1f00:38::2 24.275ms ", "10: no reply", "11: no reply", "12: 2001:4170:4031::1 27.614ms ", "13: no reply", "14: ban.junis.ni.ac.rs 27.478ms reached", " Resume: pmtu 1500 hops 14 back 14 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "origin_asn": 13092, "origin_asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "rate_limited_hops": [ 7, 13 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:798:1::1b5", "edge_router_ttl": 14, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:29:43Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "size_before": 133, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "max_before": 133 }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "91.187.144.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "2001:4170::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-RCUB-20041012", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.128.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "185.181.68.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20161209", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.0.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "147.91.0.0/16", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:4170::/32", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 15958, "holder": "CETIN_doo_AS CETIN Ltd. 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1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.731 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.97 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.506 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 22.028 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 21.982 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.333 }, { "hop": 8, "ip": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "rtt_ms": 31.653 }, { "hop": 9, "ip": "mcloud.sox.rs", "rtt_ms": 30.146 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.731ms ", " 2: 2a12:d8c0:109f:121::a1 0.970ms ", " 3: 2a12:d8c0:101f:6::1 10.506ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 22.028ms ", " 6: e0-35.core2.bts1.he.net 21.982ms ", " 7: e0-36.core2.beg1.he.net 29.333ms ", " 8: serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 31.653ms asymm 11 ", " 9: mcloud.sox.rs 30.146ms asymm 12 ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 31.696081161499023 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 30.029296875 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.397, "avg": 31.482, "max": 31.549 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.537, "avg": 31.713, "max": 32.088 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.956, 9.865 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.956 ms 9.865 ms", "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "mtr_loss_pct": 80.0 }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 22.491, 22.4 ], "stars": 0, "raw": "2001:470:0:414::1 22.491 ms 22.400 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.105, 22.331 ], "stars": 0, "raw": "2001:470:0:412::2 22.105 ms 22.331 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.336, 29.627 ], "stars": 0, "raw": "2001:470:0:33f::1 29.336 ms 29.627 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:470:1:6e5::2", "rtts_ms": [ 31.442, 31.325 ], "stars": 0, "raw": "2001:470:1:6e5::2 31.442 ms 31.325 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2001:7f8:1e:8::45", "rtts_ms": [ 29.916, 29.759 ], "stars": 0, "raw": "2001:7f8:1e:8::45 29.916 ms 29.759 ms", "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "mcloud.sox.rs", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2a07:de80::1", "rtts_ms": [ 31.54, 31.438 ], "stars": 0, "raw": "2a07:de80::1 31.540 ms 31.438 ms", "asn": 35779, "asname": "MCLOUD-AS - mCloud doo, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.5, "rtt_worst": 10.6, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.2, "rtt_best": 22.4, "rtt_worst": 198.4, "stdev": 55.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.6, "rtt_best": 22.2, "rtt_worst": 22.9, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.0, "rtt_best": 29.6, "rtt_worst": 30.7, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 8, "ip": "2001:470:1:6e5::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.2, "rtt_best": 31.8, "rtt_worst": 32.4, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net" }, { "hop": 9, "ip": "2001:7f8:1e:8::45", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.4, "rtt_best": 30.2, "rtt_worst": 30.7, "stdev": 0.2, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "mcloud.sox.rs" }, { "hop": 10, "ip": "2a07:de80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.9, "rtt_best": 31.5, "rtt_worst": 32.3, "stdev": 0.2, "asn": 35779, "asname": "MCLOUD-AS - mCloud doo, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.731 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.97 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.506 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 22.028 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 21.982 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.333 }, { "hop": 8, "ip": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "rtt_ms": 31.653 }, { "hop": 9, "ip": "mcloud.sox.rs", "rtt_ms": 30.146 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.731ms ", " 2: 2a12:d8c0:109f:121::a1 0.970ms ", " 3: 2a12:d8c0:101f:6::1 10.506ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 22.028ms ", " 6: e0-35.core2.bts1.he.net 21.982ms ", " 7: e0-36.core2.beg1.he.net 29.333ms ", " 8: serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 31.653ms asymm 11 ", " 9: mcloud.sox.rs 30.146ms asymm 12 ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 31.696081161499023 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 30.029296875 } ], "origin_asn": 35779, "origin_asname": "MCLOUD-AS - mCloud doo, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:1:6e5::2", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:34Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a07:de80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.125.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "194.146.56.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a07:de80::/29", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 41897, "holder": "SAT-TRAKT-AS Sat-Trakt D.O.O.", "prefixes_v6": [ "2a00:ad03::/32", "2a0c:6300::/30", "2a00:ad07:3000::/36", "2a00:ad00::/29", "2a00:ad00:2010::/44" ], "trace_only": false, "primary_target_ip": "2a0c:6300::1", "target_ip": "2a0c:6300::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:6300::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:6300::/30", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 25.356, "avg": 25.512, "max": 25.658 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 25.557, "avg": 25.645, "max": 25.777 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "rtts_ms": [ 8.438, 8.341 ], "stars": 0, "raw": "2a12:d8c0:101f:103::1 8.438 ms 8.341 ms" }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a", "rtts_ms": [ 7.775, 7.698 ], "stars": 0, "raw": "2a02:2d8:1:b80d:232a:: 7.775 ms 7.698 ms" }, { "hop": 5, "ip": "2a02:2d8::57f5:e0ad", "rtts_ms": [ 18.809, 18.739 ], "stars": 0, "raw": "2a02:2d8::57f5:e0ad 18.809 ms 18.739 ms" }, { "hop": 6, "ip": "2001:7f8:35::4:1897:1", "rtts_ms": [ 26.087, 25.943 ], "stars": 0, "raw": "2001:7f8:35::4:1897:1 26.087 ms 25.943 ms" }, { "hop": 7, "ip": "2a00:ad00:1000:11::2", "rtts_ms": [ 25.373, 24.221 ], "stars": 0, "raw": "2a00:ad00:1000:11::2 25.373 ms 2a00:ad00:1000:10::2 24.221 ms" }, { "hop": 8, "ip": "2a0c:6300::1", "rtts_ms": [ 25.442, 25.421 ], "stars": 0, "raw": "2a0c:6300::1 25.442 ms 25.421 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.8, "rtt_worst": 1.2, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.9, 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0.615ms ", " 2: 2a12:d8c0:109f:121::a1 0.806ms ", " 3: 2a12:d8c0:101f:6::1 10.361ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 22.548ms ", " 6: e0-35.core2.bts1.he.net 22.666ms ", " 7: e0-36.core2.beg1.he.net 29.624ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 29.603ms ", " 9: sw-thq-ex--mx204 29.768ms ", "10: srv68-55.itplatforma.com 29.706ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.9764404296875 }, { "port": 80, "open": true, "rtt_ms": 28.810977935791016 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::56", "host": "mx3.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.764, "avg": 28.834, "max": 28.868 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.911, "avg": 28.987, "max": 29.091 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.4, 0.218 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.400 ms 0.218 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.402, 0.394 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.402 ms 0.394 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 10.041, 9.96 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 10.041 ms 9.960 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 23.063, 23.003 ], "stars": 0, "raw": "2001:470:0:414::1 23.063 ms 23.003 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.002, 22.011 ], "stars": 0, "raw": "2001:470:0:412::2 22.002 ms 22.011 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.468, 29.728 ], "stars": 0, "raw": "2001:470:0:33f::1 29.468 ms 29.728 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 29.31, 29.388 ], "stars": 0, "raw": "2001:470:1:61d::2 29.310 ms 29.388 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 29.224, 29.191 ], "stars": 0, "raw": "2a03:5fe0::2 29.224 ms 29.191 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::56", "rtts_ms": [ 29.264, 29.185 ], "stars": 0, "raw": "2a03:5fe0:2::56 29.264 ms 29.185 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.5, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.6, "rtt_best": 21.8, "rtt_worst": 24.3, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.7, "rtt_best": 22.1, "rtt_worst": 24.3, "stdev": 0.6 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.4, "rtt_worst": 30.1, "stdev": 0.2 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.8, "rtt_best": 29.6, "rtt_worst": 30.1, "stdev": 0.1 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.8, "rtt_best": 29.6, "rtt_worst": 30.0, "stdev": 0.1 }, { "hop": 10, "ip": "2a03:5fe0:2::56", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.0, "rtt_best": 28.9, "rtt_worst": 29.2, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.048 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.978 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.513 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.839 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.289 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.472 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.502 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.631 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 76.536 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.884 }, { "hop": 10, "ip": "srv68-56.itplatforma.com", "rtt_ms": 29.871 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.048ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.978ms ", " 1: karsolink-01.net.karsolink.com 0.513ms ", " 2: 2a12:d8c0:109f:121::a1 0.839ms ", " 3: 2a12:d8c0:101f:6::1 10.289ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.472ms ", " 6: e0-35.core2.bts1.he.net 22.502ms ", " 7: e0-36.core2.beg1.he.net 29.631ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 76.536ms ", " 9: sw-thq-ex--mx204 29.884ms ", "10: srv68-56.itplatforma.com 29.871ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 29.106855392456055 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 29.742002487182617 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::51", "host": "ns.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.969, "avg": 29.046, "max": 29.135 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.241, "avg": 29.312, "max": 29.346 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.486, 0.381 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.486 ms 0.381 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.372, 0.357 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.372 ms 0.357 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 10.034, 9.786 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 10.034 ms 9.786 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 23.739, 23.654 ], "stars": 0, "raw": "2001:470:0:414::1 23.739 ms 23.654 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.32, 22.334 ], "stars": 0, "raw": "2001:470:0:412::2 22.320 ms 22.334 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.088, 29.207 ], "stars": 0, "raw": "2001:470:0:33f::1 29.088 ms 29.207 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 29.519, 29.415 ], "stars": 0, "raw": "2001:470:1:61d::2 29.519 ms 29.415 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 29.172, 29.088 ], "stars": 0, "raw": "2a03:5fe0::2 29.172 ms 29.088 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::51", "rtts_ms": [ 28.839, 28.75 ], "stars": 0, "raw": "2a03:5fe0:2::51 28.839 ms 28.750 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.0, "rtt_best": 21.5, "rtt_worst": 24.2, "stdev": 0.9 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.5, "rtt_best": 22.1, "rtt_worst": 28.7, "stdev": 2.5 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.5, "rtt_worst": 29.9, "stdev": 0.1 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.5, "rtt_best": 29.2, "rtt_worst": 97.8, "stdev": 21.6 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.5, "rtt_worst": 31.0, "stdev": 0.5 }, { "hop": 10, "ip": "2a03:5fe0:2::51", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.1, "rtt_best": 28.9, "rtt_worst": 29.3, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.089 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.472 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.395 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.626 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.309 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.648 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.054 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.814 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 29.927 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.91 }, { "hop": 10, "ip": "srv68-51.itplatforma.com", "rtt_ms": 29.174 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.089ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.472ms ", " 1: karsolink-01.net.karsolink.com 0.395ms ", " 2: 2a12:d8c0:109f:121::a1 0.626ms ", " 3: 2a12:d8c0:101f:6::1 10.309ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.648ms ", " 6: e0-35.core2.bts1.he.net 22.054ms ", " 7: e0-36.core2.beg1.he.net 29.814ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 29.927ms ", " 9: sw-thq-ex--mx204 29.910ms ", "10: srv68-51.itplatforma.com 29.174ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 29.793977737426758 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 29.067277908325195 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::52", "host": "providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.562, "avg": 28.752, "max": 28.856 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 28.838, "avg": 28.894, "max": 28.937 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.337, 0.287 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.337 ms 0.287 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.455, 0.369 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.455 ms 0.369 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.99, 9.849 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.990 ms 9.849 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 22.504, 22.422 ], "stars": 0, "raw": "2001:470:0:414::1 22.504 ms 22.422 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.34, 22.33 ], "stars": 0, "raw": "2001:470:0:412::2 22.340 ms 22.330 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.857, 30.186 ], "stars": 0, "raw": "2001:470:0:33f::1 29.857 ms 30.186 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 29.486, 29.395 ], "stars": 0, "raw": "2001:470:1:61d::2 29.486 ms 29.395 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 29.258, 29.164 ], "stars": 0, "raw": "2a03:5fe0::2 29.258 ms 29.164 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::52", "rtts_ms": [ 28.599, 28.517 ], "stars": 0, "raw": "2a03:5fe0:2::52 28.599 ms 28.517 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.6, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.0 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.9, "rtt_best": 21.6, "rtt_worst": 24.0, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.3, "rtt_best": 22.1, "rtt_worst": 22.6, "stdev": 0.2 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.8, "rtt_best": 29.5, "rtt_worst": 30.5, "stdev": 0.3 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.3, "rtt_best": 29.6, "rtt_worst": 44.8, "stdev": 4.8 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.6, "rtt_best": 29.4, "rtt_worst": 29.9, "stdev": 0.2 }, { "hop": 10, "ip": "2a03:5fe0:2::52", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.9, "rtt_best": 28.7, "rtt_worst": 29.1, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.047 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.687 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.517 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.777 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.452 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.363 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.383 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 30.083 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 29.864 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 30.077 }, { "hop": 10, "ip": "srv68-52.itplatforma.com", "rtt_ms": 29.19 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.047ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.687ms ", " 1: karsolink-01.net.karsolink.com 0.517ms ", " 2: 2a12:d8c0:109f:121::a1 0.777ms ", " 3: 2a12:d8c0:101f:6::1 10.452ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.363ms ", " 6: e0-35.core2.bts1.he.net 22.383ms ", " 7: e0-36.core2.beg1.he.net 30.083ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 29.864ms ", " 9: sw-thq-ex--mx204 30.077ms ", "10: srv68-52.itplatforma.com 29.190ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 29.238462448120117 }, { "port": 80, "open": true, "rtt_ms": 28.88965606689453 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::46", "host": "support.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.591, "avg": 29.661, "max": 29.703 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.568, "avg": 29.726, "max": 29.807 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.434, 0.298 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.434 ms 0.298 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.429, 0.333 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.429 ms 0.333 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.965, 10.008 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.965 ms 10.008 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 22.84, 22.769 ], "stars": 0, "raw": "2001:470:0:414::1 22.840 ms 22.769 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.138, 22.111 ], "stars": 0, "raw": "2001:470:0:412::2 22.138 ms 22.111 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.47, 29.487 ], "stars": 0, "raw": "2001:470:0:33f::1 29.470 ms 29.487 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 29.314, 29.346 ], "stars": 0, "raw": "2001:470:1:61d::2 29.314 ms 29.346 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 29.154, 29.148 ], "stars": 0, "raw": "2a03:5fe0::2 29.154 ms 29.148 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::46", "rtts_ms": [ 29.329, 29.257 ], "stars": 0, "raw": "2a03:5fe0:2::46 29.329 ms 29.257 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.3, "rtt_worst": 10.6, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.1, "rtt_best": 21.7, "rtt_worst": 24.1, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.6, "rtt_best": 22.0, "rtt_worst": 188.4, "stdev": 52.3 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.6, "rtt_worst": 29.9, "stdev": 0.1 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.3, "rtt_best": 29.7, "rtt_worst": 84.7, "stdev": 17.4 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.6, "rtt_best": 29.4, "rtt_worst": 29.9, "stdev": 0.2 }, { "hop": 10, "ip": "2a03:5fe0:2::46", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 29.7, "rtt_worst": 30.1, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.039 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.493 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.493 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.634 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.286 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.171 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.159 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.999 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 30.053 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 30.088 }, { "hop": 10, "ip": "support-thq1.itplatforma.com", "rtt_ms": 29.93 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.039ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.493ms ", " 1: karsolink-01.net.karsolink.com 0.493ms ", " 2: 2a12:d8c0:109f:121::a1 0.634ms ", " 3: 2a12:d8c0:101f:6::1 10.286ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.171ms ", " 6: e0-35.core2.bts1.he.net 22.159ms ", " 7: e0-36.core2.beg1.he.net 29.999ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 30.053ms ", " 9: sw-thq-ex--mx204 30.088ms ", "10: support-thq1.itplatforma.com 29.930ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.99456024169922 }, { "port": 80, "open": true, "rtt_ms": 28.94449234008789 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.504, "avg": 29.583, "max": 29.677 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 29.456, "avg": 29.57, "max": 29.651 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 80.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 23.249, 23.262 ], "stars": 0, "raw": "2001:470:0:414::1 23.249 ms 23.262 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.239, 22.517 ], "stars": 0, "raw": "2001:470:0:412::2 22.239 ms 22.517 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.262, 29.49 ], "stars": 0, "raw": "2001:470:0:33f::1 29.262 ms 29.490 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 29.403, 29.331 ], "stars": 0, "raw": "2001:470:1:61d::2 29.403 ms 29.331 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 29.31, 29.013 ], "stars": 0, "raw": "2a03:5fe0::2 29.310 ms 29.013 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2a03:5fe0:2::55", "rtts_ms": [ 29.354, 29.267 ], "stars": 0, "raw": "2a03:5fe0:2::55 29.354 ms 29.267 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.5, "rtt_worst": 10.7, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.9, "rtt_best": 21.8, "rtt_worst": 195.9, "stdev": 54.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.7, "rtt_best": 22.2, "rtt_worst": 23.6, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.2, "rtt_best": 29.7, "rtt_worst": 32.2, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.5, "rtt_best": 29.7, "rtt_worst": 34.8, "stdev": 1.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net" }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 29.6, "rtt_worst": 30.1, "stdev": 0.2, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204" }, { "hop": 10, "ip": "2a03:5fe0:2::55", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.3, "rtt_best": 29.9, "rtt_worst": 32.6, "stdev": 0.8, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.615 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.806 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.361 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 22.548 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.666 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.624 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 29.603 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 29.768 }, { "hop": 10, "ip": "srv68-55.itplatforma.com", "rtt_ms": 29.706 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.615ms ", " 2: 2a12:d8c0:109f:121::a1 0.806ms ", " 3: 2a12:d8c0:101f:6::1 10.361ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 22.548ms ", " 6: e0-35.core2.bts1.he.net 22.666ms ", " 7: e0-36.core2.beg1.he.net 29.624ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 29.603ms ", " 9: sw-thq-ex--mx204 29.768ms ", "10: srv68-55.itplatforma.com 29.706ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 28.9764404296875 }, { "port": 80, "open": true, "rtt_ms": 28.810977935791016 } ], "origin_asn": 43191, "origin_asname": "providus-as - Providus d.o.o., RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:33f::1", "edge_router_ttl": 10, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (tls) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "tls", "size_before": 4315, "size_after": 4284, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:31:08Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 4315, "size_after": 4284 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "size_before": 536, "size_after": null } ], "matrix": { "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "http": { "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "port": 80, "max_before": 536 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 4315, "max_after": 4284 }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a03:5fe1::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-ZP", "org": null, "category": "unknown" }, { "prefix": "2a03:5fe0::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-THQ", "org": null, "category": "unknown" }, { "prefix": "185.80.69.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-69", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "2a03:5fe2::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-TKC", "org": null, "category": "unknown" }, { "prefix": "185.80.71.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-71", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-118", "org": null, "category": "PA" }, { "prefix": "79.170.119.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-119", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-70", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20070927", "org": null, "category": "PA" }, { "prefix": "185.80.68.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-68", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "185.80.68.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a03:5fe0::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe1::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe2::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 44143, "holder": "A1SERBIA-AS A1 Srbija d.o.o. 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"* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a00:61c0::1", "rtts_ms": [ 37.996, 37.935 ], "stars": 0, "raw": "2a00:61c0::1 37.996 ms 37.935 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.6, "rtt_worst": 10.6, "stdev": 0.0 }, { "hop": 8, "ip": "2001:850:1:103::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.3, "rtt_best": 21.1, "rtt_worst": 22.0, "stdev": 0.3 }, { "hop": 9, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.6, "rtt_best": 21.3, "rtt_worst": 22.2, "stdev": 0.3 }, { "hop": 10, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.6, "rtt_best": 36.2, "rtt_worst": 36.8, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.108 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.801 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.567 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.832 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.233 }, { "hop": 10, "ip": "2a00:61c0::1", "rtt_ms": 39.63 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.108ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.801ms ", " 1: karsolink-01.net.karsolink.com 0.567ms ", " 2: 2a12:d8c0:109f:121::a1 0.832ms ", " 3: 2a12:d8c0:101f:6::1 10.233ms ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: 2a00:61c0::1 39.630ms reached", " Resume: pmtu 1500 hops 10 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.415, "avg": 36.49, "max": 36.619 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.241, "avg": 36.399, "max": 36.525 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 80.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 10, "ip": "2a00:61c0::1", "rtts_ms": [ 37.996, 37.935 ], "stars": 0, "raw": "2a00:61c0::1 37.996 ms 37.935 ms", "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.6, "rtt_worst": 10.6, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 8, "ip": "2001:850:1:103::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.3, "rtt_best": 21.1, "rtt_worst": 22.0, "stdev": 0.3, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 9, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.6, "rtt_best": 21.3, "rtt_worst": 22.2, "stdev": 0.3, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 10, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.6, "rtt_best": 36.2, "rtt_worst": 36.8, "stdev": 0.2, "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.108 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.801 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.567 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.832 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.233 }, { "hop": 10, "ip": "2a00:61c0::1", "rtt_ms": 39.63 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.108ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.801ms ", " 1: karsolink-01.net.karsolink.com 0.567ms ", " 2: 2a12:d8c0:109f:121::a1 0.832ms ", " 3: 2a12:d8c0:101f:6::1 10.233ms ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: 2a00:61c0::1 39.630ms reached", " Resume: pmtu 1500 hops 10 back 11 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 44143, "origin_asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:61c0:8000:1000::1", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [ "2a00:61c0:8000:1000::1" ], "probed_count": 30 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:30:08Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": 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"hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.8, "rtt_worst": 1.1, "stdev": 0.2 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.8, "rtt_best": 22.4, "rtt_worst": 207.1, "stdev": 58.1 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 22.2, "rtt_worst": 22.6, "stdev": 0.1 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 29.6, "rtt_worst": 30.3, "stdev": 0.2 }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.3, "rtt_best": 36.4, "rtt_worst": 53.0, "stdev": 5.1 }, { "hop": 9, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 30.0, "sent": 10, "rtt_avg": 37.1, "rtt_best": 36.9, "rtt_worst": 37.5, "stdev": 0.2 }, { "hop": 10, "ip": "2001:67c:69c::59", "loss_pct": 10.0, "sent": 10, "rtt_avg": 36.9, "rtt_best": 36.4, "rtt_worst": 37.2, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.027 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.624 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.52 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.645 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.079 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.065 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.549 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.71 }, { "hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 36.719 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.027ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.624ms ", " 1: karsolink-01.net.karsolink.com 0.520ms ", " 2: 2a12:d8c0:109f:121::a1 0.645ms ", " 3: 2a12:d8c0:101f:6::1 10.079ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.065ms ", " 6: e0-35.core2.bts1.he.net 22.549ms ", " 7: e0-36.core2.beg1.he.net 29.710ms ", " 8: rnids.sox.rs 36.719ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::60", "host": "ns2.rnids.rs", "source": "dns-ns", "prefix": "2001:67c:69c::/48", 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reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::51", "host": "ns3.rnids.rs", "source": "holder-derived", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.225, "avg": 36.285, "max": 36.328 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.385, "avg": 36.463, "max": 36.581 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.353, 0.284 ], "stars": 0, 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null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.2, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.9, "rtt_best": 21.8, "rtt_worst": 24.2, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 22.1, "rtt_worst": 22.6, "stdev": 0.2 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.7, "rtt_best": 29.4, "rtt_worst": 30.1, "stdev": 0.2 }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 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"hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 36.603 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.044ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.581ms ", " 1: karsolink-01.net.karsolink.com 0.605ms ", " 2: 2a12:d8c0:109f:121::a1 0.686ms ", " 3: 2a12:d8c0:101f:6::1 10.266ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.135ms ", " 6: e0-35.core2.bts1.he.net 22.573ms ", " 7: e0-36.core2.beg1.he.net 29.664ms ", " 8: rnids.sox.rs 36.603ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::53", "host": "ns4.rnids.rs", "source": "holder-derived", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.392, "avg": 36.439, "max": 36.558 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.472, "avg": 36.63, "max": 36.788 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.456, 0.236 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.456 ms 0.236 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.402, 0.372 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.402 ms 0.372 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 10.02, 9.893 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 10.020 ms 9.893 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 21.654, 21.52 ], "stars": 0, "raw": "2001:470:0:414::1 21.654 ms 21.520 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 22.038, 22.325 ], "stars": 0, "raw": "2001:470:0:412::2 22.038 ms 22.325 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 29.218, 29.417 ], "stars": 0, "raw": "2001:470:0:33f::1 29.218 ms 29.417 ms" }, { "hop": 8, "ip": "2001:7f8:1e::27", "rtts_ms": [ 36.372, 36.193 ], "stars": 0, "raw": "2001:7f8:1e::27 36.372 ms 36.193 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.5, "rtt_worst": 0.6, "stdev": 0.0 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.2, "rtt_best": 22.2, "rtt_worst": 24.4, "stdev": 0.7 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.3, "rtt_best": 22.3, "rtt_worst": 30.6, "stdev": 2.6 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 46.3, "rtt_best": 29.5, "rtt_worst": 195.1, "stdev": 52.3 }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 10.0, "sent": 10, "rtt_avg": 36.5, "rtt_best": 36.3, "rtt_worst": 36.7, "stdev": 0.1 }, { "hop": 9, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 20.0, "sent": 10, "rtt_avg": 37.0, "rtt_best": 36.9, "rtt_worst": 37.2, "stdev": 0.1 }, { "hop": 10, "ip": "2001:67c:69c::53", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.5, "rtt_best": 36.5, "rtt_worst": 36.6, "stdev": 0.0 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.497 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.985 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.832 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.417 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 22.926 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.538 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.453 }, { "hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 39.327 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.497ms ", " 1: karsolink-01.net.karsolink.com 0.985ms ", " 2: 2a12:d8c0:109f:121::a1 0.832ms ", " 3: 2a12:d8c0:101f:6::1 10.417ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 22.926ms ", " 6: e0-35.core2.bts1.he.net 22.538ms ", " 7: e0-36.core2.beg1.he.net 29.453ms ", " 8: rnids.sox.rs 39.327ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.309, "avg": 36.365, "max": 36.414 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.186, "avg": 36.342, "max": 36.433 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 70.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 21.024, 20.909 ], "stars": 0, "raw": "2001:470:0:414::1 21.024 ms 20.909 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": "2001:7f8:1e::27", "rtts_ms": [ 35.971, 36.14 ], "stars": 0, "raw": "2001:7f8:1e::27 35.971 ms 36.140 ms", "asn": 13004, "asname": "Serbian Open eXchange", "ptr": "rnids.sox.rs", "ixp": "sox", "ixp_member_asn": 13004, "ixp_member_name": "Serbian Open eXchange", "six": true, "six_member_asn": 13004, "six_member_name": "Serbian Open eXchange", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 30.0, "mtr_loss_path_mismatch": true }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 10.0, "mtr_loss_path_mismatch": true }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 80.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.8, "rtt_worst": 1.1, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 80.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.8, "rtt_best": 22.4, "rtt_worst": 207.1, "stdev": 58.1, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-20.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 22.2, "rtt_worst": 22.6, "stdev": 0.1, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 29.9, "rtt_best": 29.6, "rtt_worst": 30.3, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.3, "rtt_best": 36.4, "rtt_worst": 53.0, "stdev": 5.1, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "rnids.sox.rs" }, { "hop": 9, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 30.0, "sent": 10, "rtt_avg": 37.1, "rtt_best": 36.9, "rtt_worst": 37.5, "stdev": 0.2, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": null }, { "hop": 10, "ip": "2001:67c:69c::59", "loss_pct": 10.0, "sent": 10, "rtt_avg": 36.9, "rtt_best": 36.4, "rtt_worst": 37.2, "stdev": 0.3, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": "a.nic.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.027 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.624 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.52 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.645 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.079 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.065 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.549 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.71 }, { "hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 36.719 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.027ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.624ms ", " 1: karsolink-01.net.karsolink.com 0.520ms ", " 2: 2a12:d8c0:109f:121::a1 0.645ms ", " 3: 2a12:d8c0:101f:6::1 10.079ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.065ms ", " 6: e0-35.core2.bts1.he.net 22.549ms ", " 7: e0-36.core2.beg1.he.net 29.710ms ", " 8: rnids.sox.rs 36.719ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 47267, "origin_asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "rate_limited_hops": [ 3, 9, 10 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a0f:eb80:400:0:91:199:17:244", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [ "2a0f:eb80:400:0:91:199:17:244" ], "probed_count": 30 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:29:45Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 56B; not big enough to test PMTU shrink", "size_before": 56, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 56B; not big enough to test PMTU shrink", "max_before": 56 }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2001:67c:69c::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "RNIDS-IPv6-Net", "org": null, "category": "PI" }, { "prefix": "2a0f:eb80::/44", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "Services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/32", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RNIDS_services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80:1::/48", "family": "v6", "status": "ASSIGNED", "netname": "R-anycast", "org": null, "category": "unknown" }, { "prefix": "185.182.160.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.162.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/48", "family": "v6", "status": "ASSIGNED", "netname": "Services", "org": null, "category": "unknown" }, { "prefix": "185.182.161.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "185.182.163.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.160.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "91.199.17.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RNIDS-Net", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 5, "invalid": 0, "not_found": 0, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2001:67c:69c::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/44", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80:1::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 47267, "prefix_len": 44, "maxLength": 44, "ta": "ripe" }, { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": true }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 49167, "holder": "COMUTEL-AS COMUTEL d.o.o.", "prefixes_v6": [ "2001:67c:2210::/48" ], "trace_only": false, "primary_target_ip": "2001:67c:2210::1", "target_ip": "2001:67c:2210::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2001:67c:2210::1", "host": "(probe)", "source": "probe", "prefix": "2001:67c:2210::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 47.27, "avg": 47.3, "max": 47.339 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.398, 0.448 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.398 ms 0.448 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.385, 0.426 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.385 ms 0.426 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.967, 9.868 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.967 ms 9.868 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:470:0:52e::2", "rtts_ms": [ 23.234, 23.765 ], "stars": 0, "raw": "2001:470:0:52e::2 23.234 ms 23.765 ms" }, { "hop": 8, "ip": "2001:470:0:3b2::2", "rtts_ms": [ 23.365, 23.259 ], "stars": 0, "raw": "2001:470:0:3b2::2 23.365 ms 23.259 ms" }, { "hop": 9, "ip": "2001:470:12:10::2", "rtts_ms": [ 47.243, 47.104 ], "stars": 0, "raw": "2001:470:12:10::2 47.243 ms 47.104 ms" } ], "last_responsive_hop": 9, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 1.2, "rtt_worst": 1.2, "stdev": 0.0 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 50.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.4, "rtt_worst": 10.4, "stdev": 0.0 }, { "hop": 7, "ip": "2001:470:0:52e::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.2, "rtt_best": 23.5, "rtt_worst": 27.2, "stdev": 1.1 }, { "hop": 8, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.7, "rtt_best": 23.5, "rtt_worst": 24.2, "stdev": 0.2 }, { "hop": 9, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.7, "rtt_best": 47.3, "rtt_worst": 48.1, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1500, 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.857 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.682 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.803 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.525 }, { "hop": 7, "ip": "e0-36.core2.dus1.he.net", "rtt_ms": 34.147 }, { "hop": 8, "ip": "tserv2.dus1.he.net", "rtt_ms": 24.794 }, { "hop": 9, "ip": "tserv2.dus1.he.net", "rtt_ms": 23.681 }, { "hop": 9, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 47.998 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.857ms ", " 1: karsolink-01.net.karsolink.com 0.682ms ", " 2: 2a12:d8c0:109f:121::a1 0.803ms ", " 3: 2a12:d8c0:101f:6::1 10.525ms ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: e0-36.core2.dus1.he.net 34.147ms ", " 8: tserv2.dus1.he.net 24.794ms ", " 9: tserv2.dus1.he.net 23.681ms pmtu 1480", " 9: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 47.998ms reached", " Resume: pmtu 1480 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 46.96297645568848 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 47.510385513305664 } ], "classification": "echo_only" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 47.27, "avg": 47.3, "max": 47.339 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.398, 0.448 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.398 ms 0.448 ms", "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.385, 0.426 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.385 ms 0.426 ms", "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.967, 9.868 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.967 ms 9.868 ms", "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "mtr_loss_pct": 90.0 }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:470:0:52e::2", "rtts_ms": [ 23.234, 23.765 ], "stars": 0, "raw": "2001:470:0:52e::2 23.234 ms 23.765 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.dus1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:470:0:3b2::2", "rtts_ms": [ 23.365, 23.259 ], "stars": 0, "raw": "2001:470:0:3b2::2 23.365 ms 23.259 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tserv2.dus1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2001:470:12:10::2", "rtts_ms": [ 47.243, 47.104 ], "stars": 0, "raw": "2001:470:12:10::2 47.243 ms 47.104 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 9, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 1.2, "rtt_worst": 1.2, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 90.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 50.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.4, "rtt_worst": 10.4, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 7, "ip": "2001:470:0:52e::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.2, "rtt_best": 23.5, "rtt_worst": 27.2, "stdev": 1.1, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.dus1.he.net" }, { "hop": 8, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.7, "rtt_best": 23.5, "rtt_worst": 24.2, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tserv2.dus1.he.net" }, { "hop": 9, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.7, "rtt_best": 47.3, "rtt_worst": 48.1, "stdev": 0.2, "asn": 49167, "asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1500, 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.051 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.857 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.682 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.803 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.525 }, { "hop": 7, "ip": "e0-36.core2.dus1.he.net", "rtt_ms": 34.147 }, { "hop": 8, "ip": "tserv2.dus1.he.net", "rtt_ms": 24.794 }, { "hop": 9, "ip": "tserv2.dus1.he.net", "rtt_ms": 23.681 }, { "hop": 9, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 47.998 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.051ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.857ms ", " 1: karsolink-01.net.karsolink.com 0.682ms ", " 2: 2a12:d8c0:109f:121::a1 0.803ms ", " 3: 2a12:d8c0:101f:6::1 10.525ms ", " 4: no reply", " 5: no reply", " 6: no reply", " 7: e0-36.core2.dus1.he.net 34.147ms ", " 8: tserv2.dus1.he.net 24.794ms ", " 9: tserv2.dus1.he.net 23.681ms pmtu 1480", " 9: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 47.998ms reached", " Resume: pmtu 1480 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 46.96297645568848 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 47.510385513305664 } ], "origin_asn": 49167, "origin_asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "rate_limited_hops": [ 3 ], "classification": "echo_only", "yarrp_blackhole": { "edge_router_ip": "2001:470:12:10::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": null, "last_te_ip": null, "reached_target": false, "verdict": "no_signal", "explanation": "Neither PTB nor Time-Exceeded reached us during the per-hop scan. Cannot localize the break from this vantage." }, "pmtud_probes": [ { "ttl": 2, "result": "no_response" }, { "ttl": 3, "result": "no_response" }, { "ttl": 4, "result": "no_response" }, { "ttl": 5, "result": "no_response" }, { "ttl": 6, "result": "no_response" }, { "ttl": 7, "result": "no_response" }, { "ttl": 8, "result": "no_response" }, { "ttl": 9, "result": "no_response" }, { "ttl": 10, "result": "no_response" }, { "ttl": 11, "result": "no_response" }, { "ttl": 12, "result": "no_response" }, { "ttl": 13, "result": "no_response" } ], "rfc4890": "unknown", "rfc4890_reason": "1500-byte Echo failed but per-hop PMTUD diagnostic has not been run yet for this target.", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:29:38Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "PI", "prefixes": [ { "prefix": "2001:67c:2210::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.217.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.216.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "91.212.69.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL", "org": "Omladinskih brigada 88b", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:67c:2210::/48", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "past AS6939 (HURRICANE)", "pmtu_min": 1480 }, { "vantage": "karsolink", "asn": 56843, "holder": "CNT-ISP-AS Centar Novih Tehnologija DOO", "prefixes_v6": [ "2a02:2951::/32" ], "trace_only": false, "primary_target_ip": "2a02:2951::1", "target_ip": "2a02:2951::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a02:2951::1", "host": "(probe)", "source": "probe", "prefix": "2a02:2951::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 42.43, "avg": 42.659, "max": 42.958 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 42.74, "avg": 42.916, "max": 43.06 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a", "rtts_ms": [ 42.036, 41.878 ], "stars": 0, "raw": "2a02:2d8:1:b80d:232a:: 42.036 ms 41.878 ms" }, { "hop": 5, 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"port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:30:11Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, 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{ "hop": 7, "ip": "2a12:3200:f000::157", "rtt_ms": 47.063 }, { "hop": 8, "ip": "2a12:3200:f000::80", "rtt_ms": 58.912 }, { "hop": 9, "ip": "demo2.sox.rs", "rtt_ms": 69.891 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.028ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.607ms ", " 1: karsolink-01.net.karsolink.com 0.806ms ", " 2: 2a12:d8c0:109f:121::a1 0.934ms ", " 3: 2a12:d8c0:101f:103::1 8.819ms ", " 4: interkvm-as6204.mix-it.net 9.081ms ", " 5: 2a12:3200:f000::164 17.714ms ", " 6: 2a12:3200:f000::19c 30.992ms ", " 7: 2a12:3200:f000::157 47.063ms ", " 8: 2a12:3200:f000::80 58.912ms ", " 9: demo2.sox.rs 69.891ms reached", " Resume: pmtu 1500 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 69.494, "avg": 70.334, "max": 72.217 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 69.503, "avg": 70.317, "max": 71.568 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 50.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": "2001:7f8:b:100:1d1:a5d0:6204:192", "rtts_ms": [ 8.762, 8.64 ], "stars": 0, "raw": "2001:7f8:b:100:1d1:a5d0:6204:192 8.762 ms 8.640 ms", "asn": null, "asname": "NA", "ptr": "interkvm-AS6204.mix-it.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a12:3200:f000::164", "rtts_ms": [ 17.337, 17.255 ], "stars": 0, "raw": "2a12:3200:f000::164 17.337 ms 17.255 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a12:3200:f000::19c", "rtts_ms": [ 30.526, 30.45 ], "stars": 0, "raw": "2a12:3200:f000::19c 30.526 ms 30.450 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a12:3200:f000::157", "rtts_ms": [ 46.725, 46.581 ], "stars": 0, "raw": "2a12:3200:f000::157 46.725 ms 46.581 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a12:3200:f000::80", "rtts_ms": [ 58.391, 58.318 ], "stars": 0, "raw": "2a12:3200:f000::80 58.391 ms 58.318 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a09:ab80::1", "rtts_ms": [ 70.043, 70.838 ], "stars": 0, "raw": "2a09:ab80::1 70.043 ms 70.838 ms", "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 9, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.8, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 90.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "loss_pct": 50.0, "sent": 10, "rtt_avg": 8.7, "rtt_best": 8.5, "rtt_worst": 8.9, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 4, "ip": "2001:7f8:b:100:1d1:a5d0:6204:192", "loss_pct": 0.0, "sent": 10, "rtt_avg": 9.2, "rtt_best": 9.0, "rtt_worst": 9.3, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": "interkvm-AS6204.mix-it.net" }, { "hop": 5, "ip": "2a12:3200:f000::164", "loss_pct": 0.0, "sent": 10, "rtt_avg": 17.8, "rtt_best": 17.6, "rtt_worst": 18.1, "stdev": 0.2, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 6, "ip": "2a12:3200:f000::19c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.0, "rtt_best": 30.8, "rtt_worst": 31.6, "stdev": 0.2, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 7, "ip": "2a12:3200:f000::157", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.2, "rtt_best": 47.0, "rtt_worst": 47.5, "stdev": 0.2, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 8, "ip": "2a12:3200:f000::80", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.0, "rtt_best": 58.7, "rtt_worst": 59.2, "stdev": 0.1, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 9, "ip": "2a09:ab80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 71.9, "rtt_best": 69.6, "rtt_worst": 87.2, "stdev": 5.4, "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.028 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.607 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.806 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.934 }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "rtt_ms": 8.819 }, { "hop": 4, "ip": "interkvm-as6204.mix-it.net", "rtt_ms": 9.081 }, { "hop": 5, "ip": "2a12:3200:f000::164", "rtt_ms": 17.714 }, { "hop": 6, "ip": "2a12:3200:f000::19c", "rtt_ms": 30.992 }, { "hop": 7, "ip": "2a12:3200:f000::157", "rtt_ms": 47.063 }, { "hop": 8, "ip": "2a12:3200:f000::80", "rtt_ms": 58.912 }, { "hop": 9, "ip": "demo2.sox.rs", "rtt_ms": 69.891 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.028ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.607ms ", " 1: karsolink-01.net.karsolink.com 0.806ms ", " 2: 2a12:d8c0:109f:121::a1 0.934ms ", " 3: 2a12:d8c0:101f:103::1 8.819ms ", " 4: interkvm-as6204.mix-it.net 9.081ms ", " 5: 2a12:3200:f000::164 17.714ms ", " 6: 2a12:3200:f000::19c 30.992ms ", " 7: 2a12:3200:f000::157 47.063ms ", " 8: 2a12:3200:f000::80 58.912ms ", " 9: demo2.sox.rs 69.891ms reached", " Resume: pmtu 1500 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 60733, "origin_asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a12:3200:f000::1eb", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:35Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "88.218.137.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-Business", "org": null, "category": "PA" }, { "prefix": "2a09:ab80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-PERKE-20181217", "org": null, "category": "PA" }, { "prefix": "88.218.138.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B2", "org": null, "category": "PA" }, { "prefix": "88.218.136.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a09:ab80::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 60733, "prefix_len": 29, "maxLength": 60, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 202676, "holder": "BRZNET BIZNET DOO", "prefixes_v6": [ "2a0b:4040::/29" ], "trace_only": false, "primary_target_ip": "2a0b:4040::1", "target_ip": "2a0b:4040::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0b:4040::1", "host": "(probe)", "source": "probe", "prefix": "2a0b:4040::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.478, "avg": 34.567, "max": 34.777 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.4, "avg": 34.563, "max": 34.691 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a", "rtts_ms": [ 7.841, 7.627 ], "stars": 0, "raw": "2a02:2d8:1:b80d:232a:: 7.841 ms 7.627 ms" }, { "hop": 5, "ip": "2a02:2d8::57f5:e0af", "rtts_ms": [ 16.082, 16.011 ], "stars": 0, "raw": "2a02:2d8::57f5:e0af 16.082 ms 16.011 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2a02:2608:ffff:ffff::2c", "rtts_ms": [ 37.714, 33.515 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::2c 37.714 ms 2a02:2608:ffff:ffff::be 33.515 ms" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.9, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.9, "rtt_best": 8.8, "rtt_worst": 9.1, "stdev": 0.1 }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.4, "rtt_best": 8.0, "rtt_worst": 10.6, "stdev": 0.8 }, { "hop": 5, "ip": "2a02:2d8::57f5:e0a2", "loss_pct": 10.0, "sent": 10, "rtt_avg": 20.1, 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"stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 1.0, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.9, "rtt_worst": 1.0, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.9, "rtt_best": 8.8, "rtt_worst": 9.1, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 4, "ip": "2a02:2d8:1:b80d:232a::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.4, "rtt_best": 8.0, "rtt_worst": 10.6, "stdev": 0.8, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "ae8-202.RT.CLR.MIL.IT.retn.net" }, { "hop": 5, "ip": "2a02:2d8::57f5:e0a2", "loss_pct": 10.0, "sent": 10, "rtt_avg": 20.1, "rtt_best": 19.9, "rtt_worst": 20.6, "stdev": 0.2, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "RT.EQX.FKT.DE.retn.net" }, { "hop": 7, "ip": "2a02:2608:ffff:ffff::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 39.1, "rtt_best": 38.1, "rtt_worst": 42.0, "stdev": 1.3, "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null }, { "hop": 8, "ip": "2a0b:4040::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 34.7, "rtt_best": 34.5, "rtt_worst": 35.2, "stdev": 0.3, "asn": 202676, "asname": "BRZNET - BIZNET DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.544 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.649 }, { "hop": 3, "ip": "2a12:d8c0:101f:103::1", "rtt_ms": 8.655 }, { "hop": 4, "ip": "ae8-202.rt.clr.mil.it.retn.net", "rtt_ms": 8.237 }, { "hop": 5, "ip": "rt.irx.vie.at.retn.net", "rtt_ms": 15.971 }, { "hop": 7, "ip": "2a02:2608:ffff:ffff::be", "rtt_ms": 33.931 }, { "hop": 8, "ip": "2a02:2608:ffff:ffff::bd", "rtt_ms": 32.555 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.544ms ", " 2: 2a12:d8c0:109f:121::a1 0.649ms ", " 3: 2a12:d8c0:101f:103::1 8.655ms ", " 4: ae8-202.rt.clr.mil.it.retn.net 8.237ms asymm 5 ", " 5: rt.irx.vie.at.retn.net 15.971ms ", " 6: no reply", " 7: 2a02:2608:ffff:ffff::be 33.931ms asymm 10 ", " 8: 2a02:2608:ffff:ffff::bd 32.555ms asymm 10 ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 202676, "origin_asname": "BRZNET - BIZNET DOO, RS", "rate_limited_hops": [ 3, 5 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:2608:ffff:ffff::2c", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:45Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "185.55.159.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BRZNET", "org": null, "category": "PA" }, { "prefix": "2a0b:4040::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-BIZNET-20260126", "org": "BRZNET", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a0b:4040::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 202676, "prefix_len": 29, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 205007, "holder": "ESERVER-RS Maxim Azarov trading as eServer", "prefixes_v6": [ "2a10:9686::/32", "2a04:b540:3000::/36", "2a09:31c0:babe::/48" ], "trace_only": false, "primary_target_ip": "2a04:b540:3000:2::3", "target_ip": "2a04:b540:3000:2::3", "target_host": "(SPF ip6: literal)", "target_source": "dns-spf-ipv6", "targets": [ { "ip": "2a04:b540:3000:2::3", "host": "(SPF ip6: literal)", "source": "dns-spf-ipv6", "prefix": "2a04:b540:3000::/36", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.508, "avg": 50.696, "max": 50.817 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.446, "avg": 50.548, "max": 50.605 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.422, 10.32 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.422 ms 10.320 ms" }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 25.928, 26.29 ], "stars": 0, "raw": "2a03:b020::222 25.928 ms 26.290 ms" }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 51.072, 50.636 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 51.072 ms 50.636 ms" }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtts_ms": [ 50.403, 50.331 ], "stars": 0, "raw": "2a00:e90:0:b::19 50.403 ms 50.331 ms" }, { "hop": 8, "ip": "2a02:e40::24", "rtts_ms": [ 50.473, 50.631 ], "stars": 0, "raw": "2a02:e40::24 50.473 ms 50.631 ms" }, { "hop": 9, "ip": "2a02:e40::100:e", "rtts_ms": [ 50.821, 50.717 ], "stars": 0, "raw": "2a02:e40::100:e 50.821 ms 50.717 ms" }, { "hop": 10, "ip": "2a04:b540:3000:2::3", "rtts_ms": [ 50.782, 50.31 ], "stars": 0, "raw": "2a04:b540:3000:2::3 50.782 ms !X 50.310 ms !X" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.8, "rtt_best": 10.3, "rtt_worst": 11.1, "stdev": 0.2 }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 42.3, "rtt_best": 26.4, "rtt_worst": 184.1, "stdev": 49.8 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 56.5, "rtt_best": 50.3, "rtt_worst": 109.3, "stdev": 18.5 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.9, "rtt_best": 50.7, "rtt_worst": 51.2, "stdev": 0.2 }, { "hop": 8, "ip": "2a02:e40::24", "loss_pct": 10.0, "sent": 10, "rtt_avg": 51.2, "rtt_best": 51.1, "rtt_worst": 51.4, "stdev": 0.1 }, { "hop": 9, "ip": "2a02:e40::100:e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 55.4, "rtt_best": 50.8, "rtt_worst": 94.3, "stdev": 13.7 }, { "hop": 10, "ip": "2a04:b540:3000:2::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.0, "rtt_best": 50.8, "rtt_worst": 51.6, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.027 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.681 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.273 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.652 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 26.448 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 50.252 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtt_ms": 50.913 }, { "hop": 8, "ip": "2a02:e40::24", "rtt_ms": 51.069 }, { "hop": 9, "ip": "2a02:e40::100:e", "rtt_ms": 50.979 }, { "hop": 10, "ip": "service-1.rs.eserver.net", "rtt_ms": 50.915 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.027ms pmtu 1500", " 1: no reply", " 2: 2a12:d8c0:109f:121::a1 0.681ms ", " 3: 2a12:d8c0:101f:6::1 10.273ms ", " 4: 2a03:b020:1:51::a 10.652ms ", " 5: 2a03:b020::222 26.448ms ", " 6: 2a03:5f80:4:2::237:40 50.252ms ", " 7: 2a00:e90:0:b::19 50.913ms ", " 8: 2a02:e40::24 51.069ms ", " 9: 2a02:e40::100:e 50.979ms ", "10: service-1.rs.eserver.net 50.915ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 50.939083099365234 }, { "port": 80, "open": true, "rtt_ms": 52.327871322631836 } ], "classification": "open" }, { "ip": "2a04:b540:3000:2::2", "host": "eserver.rs", "source": "holder-derived", "prefix": "2a04:b540:3000::/36", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.261, "avg": 50.306, "max": 50.356 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.336, "avg": 50.386, "max": 50.423 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.412, 0.23 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.412 ms 0.230 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.425, 0.37 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.425 ms 0.370 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.933, 9.848 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.933 ms 9.848 ms" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.186, 10.091 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.186 ms 10.091 ms" }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 26.069, 25.987 ], "stars": 0, "raw": "2a03:b020::222 26.069 ms 25.987 ms" }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 49.963, 49.818 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 49.963 ms 49.818 ms" }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtts_ms": [ 50.419, 50.385 ], "stars": 0, "raw": "2a00:e90:0:b::19 50.419 ms 50.385 ms" }, { "hop": 8, "ip": "2a02:e40::24", "rtts_ms": [ 50.744, 50.861 ], "stars": 0, "raw": "2a02:e40::24 50.744 ms 50.861 ms" }, { "hop": 9, "ip": "2a02:e40::100:e", "rtts_ms": [ 50.482, 50.39 ], "stars": 0, "raw": "2a02:e40::100:e 50.482 ms 50.390 ms" }, { "hop": 10, "ip": "2a04:b540:3000:2::2", "rtts_ms": [ 49.958, 49.908 ], "stars": 0, "raw": "2a04:b540:3000:2::2 49.958 ms 49.908 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.3, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.2, "rtt_best": 10.1, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.7, "rtt_best": 10.4, "rtt_worst": 11.0, "stdev": 0.2 }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.4, "rtt_best": 26.0, "rtt_worst": 26.8, "stdev": 0.2 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.0, "rtt_best": 50.2, "rtt_worst": 54.0, "stdev": 1.2 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.0, "rtt_best": 50.9, "rtt_worst": 51.2, "stdev": 0.1 }, { "hop": 8, "ip": "2a02:e40::24", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.1, "rtt_best": 51.0, "rtt_worst": 51.3, "stdev": 0.1 }, { "hop": 9, "ip": "2a02:e40::100:e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.8, "rtt_best": 50.7, "rtt_worst": 51.1, "stdev": 0.1 }, { "hop": 10, "ip": "2a04:b540:3000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.4, "rtt_best": 50.3, "rtt_worst": 50.5, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.711 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.6 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.779 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.402 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.666 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 26.989 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 50.607 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtt_ms": 51.104 }, { "hop": 8, "ip": "2a02:e40::24", "rtt_ms": 51.127 }, { "hop": 9, "ip": "2a02:e40::100:e", "rtt_ms": 51.159 }, { "hop": 10, "ip": "www.eserver.rs", "rtt_ms": 50.694 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.711ms ", " 1: karsolink-01.net.karsolink.com 0.600ms ", " 2: 2a12:d8c0:109f:121::a1 0.779ms ", " 3: 2a12:d8c0:101f:6::1 10.402ms ", " 4: 2a03:b020:1:51::a 10.666ms ", " 5: 2a03:b020::222 26.989ms ", " 6: 2a03:5f80:4:2::237:40 50.607ms ", " 7: 2a00:e90:0:b::19 51.104ms ", " 8: 2a02:e40::24 51.127ms ", " 9: 2a02:e40::100:e 51.159ms ", "10: www.eserver.rs 50.694ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 50.57477951049805 }, { "port": 80, "open": true, "rtt_ms": 50.342559814453125 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.508, "avg": 50.696, "max": 50.817 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.446, "avg": 50.548, "max": 50.605 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.422, 10.32 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.422 ms 10.320 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a03:b020::222", "rtts_ms": [ 25.928, 26.29 ], "stars": 0, "raw": "2a03:b020::222 25.928 ms 26.290 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtts_ms": [ 51.072, 50.636 ], "stars": 0, "raw": "2a03:5f80:4:2::237:40 51.072 ms 50.636 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtts_ms": [ 50.403, 50.331 ], "stars": 0, "raw": "2a00:e90:0:b::19 50.403 ms 50.331 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a02:e40::24", "rtts_ms": [ 50.473, 50.631 ], "stars": 0, "raw": "2a02:e40::24 50.473 ms 50.631 ms", "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 9, "ip": "2a02:e40::100:e", "rtts_ms": [ 50.821, 50.717 ], "stars": 0, "raw": "2a02:e40::100:e 50.821 ms 50.717 ms", "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2a04:b540:3000:2::3", "rtts_ms": [ 50.782, 50.31 ], "stars": 0, "raw": "2a04:b540:3000:2::3 50.782 ms !X 50.310 ms !X", "asn": 205007, "asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "ptr": "service-1.rs.eserver.net", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.7, "stdev": 0.1, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 80.0, "loss_masked": true }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.8, "rtt_best": 10.3, "rtt_worst": 11.1, "stdev": 0.2, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 5, "ip": "2a03:b020::222", "loss_pct": 0.0, "sent": 10, "rtt_avg": 42.3, "rtt_best": 26.4, "rtt_worst": 184.1, "stdev": 49.8, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "loss_pct": 0.0, "sent": 10, "rtt_avg": 56.5, "rtt_best": 50.3, "rtt_worst": 109.3, "stdev": 18.5, "asn": null, "asname": "NA", "ptr": null }, { "hop": 7, "ip": "2a00:e90:0:b::19", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.9, "rtt_best": 50.7, "rtt_worst": 51.2, "stdev": 0.2, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 8, "ip": "2a02:e40::24", "loss_pct": 10.0, "sent": 10, "rtt_avg": 51.2, "rtt_best": 51.1, "rtt_worst": 51.4, "stdev": 0.1, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 9, "ip": "2a02:e40::100:e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 55.4, "rtt_best": 50.8, "rtt_worst": 94.3, "stdev": 13.7, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 10, "ip": "2a04:b540:3000:2::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.0, "rtt_best": 50.8, "rtt_worst": 51.6, "stdev": 0.2, "asn": 205007, "asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "ptr": "service-1.rs.eserver.net" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.027 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.681 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.273 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.652 }, { "hop": 5, "ip": "2a03:b020::222", "rtt_ms": 26.448 }, { "hop": 6, "ip": "2a03:5f80:4:2::237:40", "rtt_ms": 50.252 }, { "hop": 7, "ip": "2a00:e90:0:b::19", "rtt_ms": 50.913 }, { "hop": 8, "ip": "2a02:e40::24", "rtt_ms": 51.069 }, { "hop": 9, "ip": "2a02:e40::100:e", "rtt_ms": 50.979 }, { "hop": 10, "ip": "service-1.rs.eserver.net", "rtt_ms": 50.915 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.027ms pmtu 1500", " 1: no reply", " 2: 2a12:d8c0:109f:121::a1 0.681ms ", " 3: 2a12:d8c0:101f:6::1 10.273ms ", " 4: 2a03:b020:1:51::a 10.652ms ", " 5: 2a03:b020::222 26.448ms ", " 6: 2a03:5f80:4:2::237:40 50.252ms ", " 7: 2a00:e90:0:b::19 50.913ms ", " 8: 2a02:e40::24 51.069ms ", " 9: 2a02:e40::100:e 50.979ms ", "10: service-1.rs.eserver.net 50.915ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 50.939083099365234 }, { "port": 80, "open": true, "rtt_ms": 52.327871322631836 } ], "origin_asn": 205007, "origin_asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "rate_limited_hops": [ 8 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:e40::100:e", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (tls) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "tls", "size_before": 1454, "size_after": 1428, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:31:32Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "size_before": 156, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 1454, "size_after": 1428 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "size_before": 295, "size_after": null } ], "matrix": { "http": { "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "port": 80, "max_before": 295 }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "max_before": 156 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 1454, "max_after": 1428 }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a04:b540:3000::/36", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RS-ESERVER", "org": null, "category": "PA" }, { "prefix": "2a09:31c0:babe::/48", "family": "v6", "status": "ASSIGNED", "netname": "VPS1-RS", "org": null, "category": "unknown" }, { "prefix": "2a10:9686::/32", "family": "v6", "status": "ASSIGNED", "netname": "RS-ALEXGROUP-RS", "org": null, "category": "unknown" }, { "prefix": "87.121.38.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "BG-NETERRAIP-20050712", "org": null, "category": "PA" }, { "prefix": "194.87.85.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.250.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" }, { "prefix": "195.133.18.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.251.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a04:b540:3000::/36", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 36, "maxLength": 36, "ta": "ripe" } ] }, { "prefix": "2a10:9686::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a09:31c0:babe::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "karsolink", "asn": 207604, "holder": "UNITED United Internet Ltd.", "prefixes_v6": [ "2a0c:bf80:5a::/48" ], "trace_only": false, "primary_target_ip": "2a0c:bf80:5a::1", "target_ip": "2a0c:bf80:5a::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:bf80:5a::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:bf80:5a::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.712, "avg": 35.847, "max": 35.954 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.645, "avg": 35.857, "max": 36.03 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:414::1", "rtts_ms": [ 21.756, 21.683 ], "stars": 0, "raw": "2001:470:0:414::1 21.756 ms 21.683 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2001:470:1:6e5::2", "rtts_ms": [ 31.535, 31.433 ], "stars": 0, "raw": "2001:470:1:6e5::2 31.535 ms 31.433 ms" }, { "hop": 9, "ip": "2001:7f8:1e:8::34", "rtts_ms": [ 37.204, 37.126 ], "stars": 0, "raw": "2001:7f8:1e:8::34 37.204 ms 37.126 ms" }, { "hop": 10, "ip": "2a0c:bf80:5a::3", "rtts_ms": [ 35.96, 35.869 ], "stars": 0, "raw": "2a0c:bf80:5a::3 35.960 ms 35.869 ms" } ], "last_responsive_hop": 10, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 11.4, "rtt_best": 10.3, "rtt_worst": 17.0, "stdev": 2.5 }, { "hop": 5, "ip": "2001:470:0:414::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.1, "rtt_best": 22.0, "rtt_worst": 165.9, "stdev": 44.9 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.6, "rtt_best": 22.3, "rtt_worst": 23.1, "stdev": 0.3 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 30.3, "rtt_best": 29.7, "rtt_worst": 31.6, "stdev": 0.7 }, { "hop": 8, "ip": "2001:470:1:6e5::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.1, "rtt_best": 31.8, "rtt_worst": 32.5, "stdev": 0.2 }, { "hop": 9, "ip": "2001:7f8:1e:8::34", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.7, "rtt_best": 37.4, "rtt_worst": 38.2, "stdev": 0.2 }, { "hop": 10, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.1, "rtt_best": 35.8, "rtt_worst": 36.4, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { 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serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 31.874ms asymm 11 ", " 9: united.sox.rs 38.143ms asymm 8 ", "10: 2a0c:bf80:5a::3 36.496ms reached", " Resume: pmtu 1500 hops 10 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 39.34335708618164 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 35.72964668273926 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.712, "avg": 35.847, "max": 35.954 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 35.645, "avg": 35.857, "max": 36.03 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 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"rtt_avg": 32.1, "rtt_best": 31.8, "rtt_worst": 32.5, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net" }, { "hop": 9, "ip": "2001:7f8:1e:8::34", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.7, "rtt_best": 37.4, "rtt_worst": 38.2, "stdev": 0.2, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "united.sox.rs" }, { "hop": 10, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.1, "rtt_best": 35.8, "rtt_worst": 36.4, "stdev": 0.2, "asn": 207604, "asname": "UNITED - United Internet Ltd., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.027 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.757 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.107 }, { "hop": 5, "ip": "100ge0-0-0-20.core1.vie1.he.net", "rtt_ms": 23.965 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 22.538 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 29.689 }, { "hop": 8, "ip": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "rtt_ms": 31.874 }, { "hop": 9, "ip": "united.sox.rs", "rtt_ms": 38.143 }, { "hop": 10, "ip": "2a0c:bf80:5a::3", "rtt_ms": 36.496 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.027ms pmtu 1500", " 1: no reply", " 2: 2a12:d8c0:109f:121::a1 0.757ms ", " 3: 2a12:d8c0:101f:6::1 10.107ms ", " 4: no reply", " 5: 100ge0-0-0-20.core1.vie1.he.net 23.965ms ", " 6: e0-35.core2.bts1.he.net 22.538ms ", " 7: e0-36.core2.beg1.he.net 29.689ms ", " 8: serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 31.874ms asymm 11 ", " 9: united.sox.rs 38.143ms asymm 8 ", "10: 2a0c:bf80:5a::3 36.496ms reached", " Resume: pmtu 1500 hops 10 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 39.34335708618164 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 35.72964668273926 } ], "origin_asn": 207604, "origin_asname": "UNITED - United Internet Ltd., RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:7f8:1e:8::34", "edge_router_ttl": 9, "edge_pings": false, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:47Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { 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"prefix": "2a0c:bf80:5a::/48", "family": "v6", "status": "ASSIGNED", "netname": "RS-UNLIMITED", "org": null, "category": "unknown" }, { "prefix": "185.119.90.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.212.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.214.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.89.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.88.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-NL", "org": "United Internet Ltd.", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": 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pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:1::1", "host": "ns2.yandex.net", "source": "dns-ns", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 47.93, "avg": 48.095, "max": 48.48 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.132, "avg": 48.291, "max": 48.648 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.336, 0.238 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.336 ms 0.238 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.365, 0.399 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.365 ms 0.399 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.966, 9.872 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.966 ms 9.872 ms" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 25.961, 25.868 ], "stars": 0, "raw": "2a03:b020:1:51::a 25.961 ms 25.868 ms" }, { "hop": 5, "ip": "2a03:b020::244", "rtts_ms": [ 19.342, 19.259 ], "stars": 0, "raw": "2a03:b020::244 19.342 ms 19.259 ms" }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "rtts_ms": [ 56.487, 56.965 ], "stars": 0, "raw": "2001:7f8:20:101::208:116 56.487 ms 56.965 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.6, "stdev": 0.0 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.3, "rtt_best": 0.6, "rtt_worst": 145.9, "stdev": 45.9 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.3, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.4, "rtt_worst": 10.8, "stdev": 0.1 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.5, "rtt_best": 19.3, "rtt_worst": 19.7, "stdev": 0.1 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 57.1, "rtt_best": 56.7, "rtt_worst": 58.9, "stdev": 0.7 }, { "hop": 8, "ip": "2a02:6b8:0:3714::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.2, "rtt_best": 49.0, "rtt_worst": 54.3, "stdev": 1.8 }, { "hop": 9, "ip": "2a02:6b8:0:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 48.2, "rtt_best": 48.0, "rtt_worst": 49.1, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.108 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.457 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.488 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.644 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.343 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.651 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.594 }, { "hop": 6, "ip": "styri.yndx.net", "rtt_ms": 56.634 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.108ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.457ms ", " 1: karsolink-01.net.karsolink.com 0.488ms ", " 2: 2a12:d8c0:109f:121::a1 0.644ms ", " 3: 2a12:d8c0:101f:6::1 10.343ms ", " 4: 2a03:b020:1:51::a 10.651ms ", " 5: 2a03:b020::244 19.594ms ", " 6: styri.yndx.net 56.634ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8::311", "host": "mx.yandex.ru", "source": "dns-mx", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.201, "avg": 50.256, "max": 50.341 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.142, "avg": 50.211, "max": 50.242 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.391, 0.261 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.391 ms 0.261 ms" }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtts_ms": [ 0.356, 0.349 ], "stars": 0, "raw": "2a12:d8c0:109f:121::a1 0.356 ms 0.349 ms" }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtts_ms": [ 9.931, 9.845 ], "stars": 0, "raw": "2a12:d8c0:101f:6::1 9.931 ms 9.845 ms" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 10.322, 10.238 ], "stars": 0, "raw": "2a03:b020:1:51::a 10.322 ms 10.238 ms" }, { "hop": 5, "ip": "2a03:b020::244", "rtts_ms": [ 19.251, 19.168 ], "stars": 0, "raw": "2a03:b020::244 19.251 ms 19.168 ms" }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "rtts_ms": [ 85.219, 85.136 ], "stars": 0, "raw": "2001:7f8:20:101::208:116 85.219 ms 85.136 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.0, "rtt_worst": 10.5, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.3, "rtt_worst": 11.0, "stdev": 0.2 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 19.3, "rtt_worst": 20.1, "stdev": 0.2 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 56.5, "rtt_best": 56.2, "rtt_worst": 56.8, "stdev": 0.2 }, { "hop": 10, "ip": "2a02:6b8::311", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.4, "rtt_best": 50.2, "rtt_worst": 50.5, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.039 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.639 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.444 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.819 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.344 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.606 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.67 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.039ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.639ms ", " 1: karsolink-01.net.karsolink.com 0.444ms ", " 2: 2a12:d8c0:109f:121::a1 0.819ms ", " 3: 2a12:d8c0:101f:6::1 10.344ms ", " 4: 2a03:b020:1:51::a 10.606ms ", " 5: 2a03:b020::244 19.670ms ", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8::78", "host": "autodiscover.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.778, "avg": 50.819, "max": 50.893 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.793, "avg": 50.841, "max": 50.932 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.438, 0.424 ], "stars": 0, "raw": 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11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.1, "rtt_worst": 10.3, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.5, "rtt_best": 10.3, "rtt_worst": 10.6, "stdev": 0.1 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 19.3, "rtt_worst": 20.0, "stdev": 0.2 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 69.4, "rtt_best": 56.4, "rtt_worst": 128.4, "stdev": 26.7 }, { "hop": 10, "ip": "2a02:6b8::78", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.0, "rtt_best": 50.8, "rtt_worst": 51.2, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.047 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.558 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.517 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.563 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.098 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.664 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.517 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.047ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.558ms ", " 1: karsolink-01.net.karsolink.com 0.517ms ", " 2: 2a12:d8c0:109f:121::a1 0.563ms ", " 3: 2a12:d8c0:101f:6::1 10.098ms ", " 4: 2a03:b020:1:51::a 10.664ms ", " 5: 2a03:b020::244 19.517ms ", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 50.75788497924805 }, { "port": 80, "open": true, "rtt_ms": 54.08287048339844 } ], "classification": "open" }, { "ip": "2a02:6b8::1b", "host": "dns.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 51.39, "avg": 51.428, "max": 51.47 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 51.48, "avg": 51.536, "max": 51.577 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.425, 0.235 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.425 ms 0.235 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"raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.5, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.6, "rtt_worst": 2.5, "stdev": 0.6 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.2, "rtt_best": 10.1, "rtt_worst": 10.3, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.5, "rtt_best": 10.4, "rtt_worst": 10.7, "stdev": 0.1 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.5, "rtt_best": 19.3, "rtt_worst": 19.8, "stdev": 0.1 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 57.3, "rtt_best": 57.1, "rtt_worst": 57.5, "stdev": 0.1 }, { "hop": 10, "ip": "2a02:6b8::1b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.6, "rtt_best": 51.5, "rtt_worst": 51.7, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.407 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.432 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.546 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.197 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.398 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.647 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.407ms ", " 1: karsolink-01.net.karsolink.com 0.432ms ", " 2: 2a12:d8c0:109f:121::a1 0.546ms ", " 3: 2a12:d8c0:101f:6::1 10.197ms ", " 4: 2a03:b020:1:51::a 10.398ms ", " 5: 2a03:b020::244 19.647ms ", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 54.78501319885254 }, { "port": 80, "open": true, "rtt_ms": 54.292917251586914 } ], "classification": "open" }, { "ip": "2a02:6b8::213", "host": "dns1.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.154, "avg": 50.243, "max": 50.334 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 50.187, "avg": 50.292, "max": 50.453 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.392, 0.275 ], "stars": 0, "raw": "2a12:d8c0:105a:9001::1 0.392 ms 0.275 ms" }, { "hop": 2, "ip": 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12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.4, "rtt_best": 10.3, "rtt_worst": 10.5, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.8, "rtt_best": 10.4, "rtt_worst": 13.2, "stdev": 0.8 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 19.4, "rtt_worst": 20.0, "stdev": 0.2 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 64.6, "rtt_best": 56.4, "rtt_worst": 130.2, "stdev": 23.1 }, { "hop": 10, "ip": "2a02:6b8::213", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.4, "rtt_best": 50.3, "rtt_worst": 50.5, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.042 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.499 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.518 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.675 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.276 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.745 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 30.844 }, { "hop": 6, "ip": "styri.yndx.net", "rtt_ms": 67.414 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.042ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.499ms ", " 1: karsolink-01.net.karsolink.com 0.518ms ", " 2: 2a12:d8c0:109f:121::a1 0.675ms ", " 3: 2a12:d8c0:101f:6::1 10.276ms ", " 4: 2a03:b020:1:51::a 10.745ms ", " 5: 2a03:b020::244 30.844ms ", " 6: styri.yndx.net 67.414ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:1::213", "host": "dns2.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 54.131, "avg": 54.164, "max": 54.205 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 54.163, "avg": 54.236, "max": 54.358 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "rtts_ms": [ 0.401, 0.261 ], "stars": 0, "raw": 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11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.0 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.7, "rtt_best": 10.4, "rtt_worst": 11.5, "stdev": 0.3 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.3, "rtt_best": 19.3, "rtt_worst": 36.7, "stdev": 5.4 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 56.5, "rtt_best": 56.2, "rtt_worst": 57.4, "stdev": 0.3 }, { "hop": 9, "ip": "2a02:6b8:0:1a00::3:a1c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 55.6, "rtt_best": 54.7, "rtt_worst": 58.1, "stdev": 1.1 }, { "hop": 10, "ip": "2a02:6b8:0:1::213", "loss_pct": 0.0, "sent": 10, "rtt_avg": 54.3, "rtt_best": 54.3, "rtt_worst": 54.4, "stdev": 0.0 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.041 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.516 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.485 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.602 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.383 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.754 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.482 }, { "hop": 6, "ip": "styri.yndx.net", "rtt_ms": 57.117 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.041ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.516ms ", " 1: karsolink-01.net.karsolink.com 0.485ms ", " 2: 2a12:d8c0:109f:121::a1 0.602ms ", " 3: 2a12:d8c0:101f:6::1 10.383ms ", " 4: 2a03:b020:1:51::a 10.754ms ", " 5: 2a03:b020::244 19.482ms ", " 6: styri.yndx.net 57.117ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8::183", "host": "ftp.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 54.604, "avg": 54.639, "max": 54.681 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { 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"hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.4, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.4, "rtt_worst": 10.9, "stdev": 0.1 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 19.4, "rtt_worst": 19.8, "stdev": 0.1 }, { "hop": 6, "ip": 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karsolink-01.net.karsolink.com 0.581ms ", " 1: karsolink-01.net.karsolink.com 0.507ms ", " 2: 2a12:d8c0:109f:121::a1 0.731ms ", " 3: 2a12:d8c0:101f:6::1 10.524ms ", " 4: 2a03:b020:1:51::a 10.468ms ", " 5: 2a03:b020::244 19.712ms ", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 53.98297309875488 }, { "port": 80, "open": true, "rtt_ms": 50.7352352142334 } ], "classification": "open" }, { "ip": "2a02:6b8::125", "host": "imap.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 51.097, "avg": 51.148, "max": 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"raw": "2001:7f8:20:101::208:116 56.237 ms 56.166 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.3, "rtt_worst": 10.4, "stdev": 0.0 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 11.7, "rtt_best": 10.4, "rtt_worst": 16.9, "stdev": 2.3 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.5, "rtt_best": 19.4, "rtt_worst": 19.7, "stdev": 0.1 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 57.4, "rtt_best": 57.2, "rtt_worst": 57.6, "stdev": 0.1 }, { "hop": 9, "ip": "2a02:6b8::125", "loss_pct": 0.0, "sent": 10, "rtt_avg": 51.2, "rtt_best": 51.1, "rtt_worst": 51.4, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.042 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.73 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.523 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.64 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.295 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.735 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.657 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.042ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.730ms ", " 1: karsolink-01.net.karsolink.com 0.523ms ", " 2: 2a12:d8c0:109f:121::a1 0.640ms ", " 3: 2a12:d8c0:101f:6::1 10.295ms ", " 4: 2a03:b020:1:51::a 10.735ms ", " 5: 2a03:b020::244 19.657ms ", " 6: no reply", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:809:95:108:159:23", "host": "lg.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 48.305, "avg": 48.338, "max": 48.393 }, 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"2001:7f8:20:101::208:116 57.207 ms 57.122 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.2, "rtt_worst": 10.5, "stdev": 0.1 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 12.0, "rtt_best": 10.3, "rtt_worst": 25.7, "stdev": 4.8 }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 19.3, "rtt_worst": 20.0, "stdev": 0.2 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 60.0, "rtt_best": 56.2, "rtt_worst": 74.4, "stdev": 6.9 }, { "hop": 12, "ip": "2a02:6b8:0:809:95:108:159:23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 48.5, "rtt_best": 48.4, "rtt_worst": 48.6, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.044 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.544 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.544 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.627 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.269 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.727 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.505 }, { "hop": 6, "ip": "styri.yndx.net", "rtt_ms": 56.548 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.044ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.544ms ", " 1: karsolink-01.net.karsolink.com 0.544ms ", " 2: 2a12:d8c0:109f:121::a1 0.627ms ", " 3: 2a12:d8c0:101f:6::1 10.269ms ", " 4: 2a03:b020:1:51::a 10.727ms ", " 5: 2a03:b020::244 19.505ms ", " 6: styri.yndx.net 56.548ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 47.607, "avg": 47.65, "max": 47.691 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 47.639, "avg": 47.724, "max": 47.855 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtts_ms": [ 9.987, 10.351 ], "stars": 0, "raw": "2a03:b020:1:51::a 9.987 ms 10.351 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a03:b020::244", "rtts_ms": [ 19.059, 18.989 ], "stars": 0, "raw": "2a03:b020::244 19.059 ms 18.989 ms", "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "rtts_ms": [ 56.995, 56.506 ], "stars": 0, "raw": "2001:7f8:20:101::208:116 56.995 ms 56.506 ms", "asn": null, "asname": "NA", "ptr": "styri.yndx.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2a12:d8c0:105a:9001::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 1.1, "stdev": 0.3, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": "karsolink-01.net.karsolink.com", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 1.1, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 30.0, "loss_masked": true }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.7, "rtt_best": 10.3, "rtt_worst": 11.2, "stdev": 0.3, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.3, "rtt_best": 19.5, "rtt_worst": 36.1, "stdev": 5.2, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 6, "ip": "2001:7f8:20:101::208:116", "loss_pct": 0.0, "sent": 10, "rtt_avg": 67.6, "rtt_best": 56.3, "rtt_worst": 166.3, "stdev": 34.7, "asn": null, "asname": "NA", "ptr": "styri.yndx.net" }, { "hop": 8, "ip": "2a02:6b8:0:3714::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 49.3, "rtt_best": 48.6, "rtt_worst": 50.8, "stdev": 0.7, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": "std-s1x-vbdif802.yndx.net" }, { "hop": 9, "ip": "2a02:6b8::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 47.9, "rtt_best": 47.7, "rtt_worst": 48.2, "stdev": 0.1, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": "ns1.yandex.net" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.085 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.649 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.656 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.095 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.808 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.621 }, { "hop": 6, "ip": "styri.yndx.net", "rtt_ms": 56.295 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.085ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.649ms ", " 2: 2a12:d8c0:109f:121::a1 0.656ms ", " 3: 2a12:d8c0:101f:6::1 10.095ms ", " 4: 2a03:b020:1:51::a 10.808ms ", " 5: 2a03:b020::244 19.621ms ", " 6: styri.yndx.net 56.295ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 13238, "origin_asname": "YANDEX - YANDEX LLC, RU", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:5f80:4::225:147", "edge_router_ttl": 11, "edge_pings": false, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:30:35Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 87B; not big enough to test PMTU shrink", "size_before": 87, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 87B; not big enough to test PMTU shrink", "max_before": 87 }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a02:6b8:5::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-5--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:8::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-8--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:6::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-6--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:b::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-b--48", "org": "Kazbek Bi street, Almaty, Kazakhstan", "category": "unknown" }, { "prefix": "2a02:6b8:e::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-e--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd80::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:21::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-21--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:d::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-d--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:a::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-a--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:22::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-22--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:23::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-23--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:215::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-215--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd87::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:4::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-4--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:20::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-20--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:c::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-c--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "45.87.132.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "95.108.128.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20081209", "org": null, "category": "PA" }, { "prefix": "37.9.112.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-37-9-112-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "87.250.247.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-87-250-247-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "37.9.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20111214", "org": null, "category": "PA" }, { "prefix": "178.154.131.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-178-154-131-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": 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60.0, "loss_masked": true }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.8, "rtt_worst": 1.2, "stdev": 0.2, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null, "loss_pct_raw": 60.0, "loss_masked": true }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 10.3, "rtt_best": 10.3, "rtt_worst": 10.3, "stdev": 0.0, "asn": 204471, "asname": "KARSOLINK - 2S Computers SRL, IT", "ptr": null }, { "hop": 4, "ip": "2a03:b020:1:51::a", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.6, "rtt_best": 10.4, "rtt_worst": 10.8, "stdev": 0.1, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 5, "ip": "2a03:b020::244", "loss_pct": 10.0, "sent": 10, "rtt_avg": 38.6, "rtt_best": 19.5, "rtt_worst": 186.4, "stdev": 55.4, "asn": 41327, "asname": "FIBERTELECOM-AS - Fiber Telecom S.p.A., IT", "ptr": null }, { "hop": 6, "ip": "2001:504:1::a505:2000:1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 102.4, "rtt_best": 98.7, "rtt_worst": 115.7, "stdev": 6.9, "asn": null, "asname": "NA", "ptr": null }, { "hop": 7, "ip": "2a12:6c42::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 98.6, "rtt_best": 98.3, "rtt_worst": 99.1, "stdev": 0.2, "asn": 216024, "asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.032 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.587 }, { "hop": 1, "ip": "karsolink-01.net.karsolink.com", "rtt_ms": 0.576 }, { "hop": 2, "ip": "2a12:d8c0:109f:121::a1", "rtt_ms": 0.856 }, { "hop": 3, "ip": "2a12:d8c0:101f:6::1", "rtt_ms": 10.232 }, { "hop": 4, "ip": "2a03:b020:1:51::a", "rtt_ms": 10.667 }, { "hop": 5, "ip": "2a03:b020::244", "rtt_ms": 19.551 }, { "hop": 6, "ip": "2001:504:1::a505:2000:1", "rtt_ms": 98.683 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.032ms pmtu 1500", " 1: karsolink-01.net.karsolink.com 0.587ms ", " 1: karsolink-01.net.karsolink.com 0.576ms ", " 2: 2a12:d8c0:109f:121::a1 0.856ms ", " 3: 2a12:d8c0:101f:6::1 10.232ms ", " 4: 2a03:b020:1:51::a 10.667ms ", " 5: 2a03:b020::244 19.551ms ", " 6: 2001:504:1::a505:2000:1 98.683ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 216024, "origin_asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "rate_limited_hops": [ 3, 5, 6 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:afc0:3:1002::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "unknown", "rfc4890_reason": "", "type2_active": { "result": "no_echo", "method": "icmp6-echo", "size_before": null, "size_after": null, "fragments_after": null, "evidence": null, "port": null, "reason": "no Echo Reply to 1300-byte probe", "tested_at": "2026-05-30T11:31:48Z", "attempts": [ { "method": "icmp6-echo", "result": "no_echo", "reason": "no Echo Reply to 1300-byte probe", "size_before": null, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "no_echo", "method": "icmp6-echo", "reason": "no Echo Reply to 1300-byte probe", "probe_size": 1300 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a12:6c40::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "SG-ALEXGROUP", "org": null, "category": "PA" }, { "prefix": "2a11:c880::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-ALEXGROUP-20210901", "org": null, "category": "PA" }, { "prefix": "2a0f:cdc6:2030::/45", "family": "v6", "status": "ASSIGNED", "netname": "TUN_NL_AMS_ITNETPASS_v6", "org": null, "category": "unknown" }, { "prefix": "2a12:6c42::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "194.87.189.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "2a10:9683::/32", "family": "v6", "status": "ASSIGNED", "netname": "US-ALEXGROUP", "org": null, "category": "unknown" }, { "prefix": "195.133.2.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.23.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-FI", "org": null, "category": "PA" }, { "prefix": "45.129.143.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "176.98.191.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "146.255.188.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP-20210830", "org": null, "category": "PA" }, { "prefix": "109.107.171.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "193.38.235.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "193.124.203.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.22.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-US", "org": null, "category": "PA" }, { "prefix": "109.107.182.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "195.133.28.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "195.133.26.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "185.142.33.0/24", "family": "v4", "status": "SUB-ALLOCATED PA", "netname": "DE-KVMKA", "org": null, "category": "PA" }, { "prefix": "217.65.79.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP3-20250709", "org": null, "category": "PA" }, { "prefix": "77.221.145.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 4, "invalid": 0, "not_found": 1, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2a12:6c40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a11:c880::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 52000, "prefix_len": 29, "maxLength": 29, "ta": "ripe" }, { "asn": 216024, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a0f:cdc6:2030::/45", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] }, { "prefix": "2a10:9683::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a12:6c42::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 6700, "holder": "BEOTEL-AS TELEKOM SRBIJA a.d.", "prefixes_v6": [ "2a02:e40::/32", "2001:8c8::/32" ], "trace_only": false, "primary_target_ip": "2a02:e40::25", "target_ip": "2a02:e40::25", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a02:e40::25", "host": "(probe)", "source": "probe", "prefix": "2a02:e40::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.673, "avg": 30.774, "max": 30.887 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.351, 0.214 ], "stars": 0, "raw": "2607:fae0:a000::2 0.351 ms 0.214 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.701 ], "stars": 1, "raw": "2607:fae0:a000:2::2 0.701 ms *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.618 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.618 ms *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.844, 1.897 ], "stars": 0, "raw": "2001:470:1:5be::1 1.844 ms 1.897 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.351, 8.03 ], "stars": 0, "raw": "2001:470:0:578::1 7.351 ms 8.030 ms" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtts_ms": [ 5.638, 5.665 ], "stars": 0, "raw": "2001:7f8:30:0:2:1:0:8400 5.638 ms 5.665 ms" }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtts_ms": [ 40.676, 40.622 ], "stars": 0, "raw": "2a00:e90::212:200:5:7 40.676 ms 40.622 ms" }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtts_ms": [ 40.78, 40.959 ], "stars": 0, "raw": "2a00:e90::212:200:6:8 40.780 ms 40.959 ms" }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtts_ms": [ 41.038, 41.03 ], "stars": 0, "raw": "2a00:e90::212:200:6:60 41.038 ms 41.030 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": "2a02:e40::25", "rtts_ms": [ 31.057, 31.513 ], "stars": 0, "raw": "2a02:e40::25 31.057 ms 31.513 ms" } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 0.9, "stdev": 0.2 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 1.7, "rtt_worst": 4.1, "stdev": 0.7 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 12.0, "rtt_best": 8.3, "rtt_worst": 37.7, "stdev": 9.7 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.3, "rtt_best": 5.9, "rtt_worst": 269.4, "stdev": 83.3 }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.7, "rtt_best": 40.6, "rtt_worst": 217.7, "stdev": 55.9 }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.7, "rtt_best": 40.9, "rtt_worst": 134.5, "stdev": 29.4 }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "loss_pct": 0.0, "sent": 10, "rtt_avg": 42.6, "rtt_best": 41.3, "rtt_worst": 51.2, "stdev": 3.0 }, { "hop": 10, "ip": "2a00:e90:0:c::7", "loss_pct": 40.0, "sent": 10, "rtt_avg": 41.7, "rtt_best": 41.4, "rtt_worst": 42.3, "stdev": 0.3 }, { "hop": 11, "ip": "2a02:e40::23", "loss_pct": 50.0, "sent": 10, "rtt_avg": 31.6, "rtt_best": 31.2, "rtt_worst": 32.3, "stdev": 0.5 }, { "hop": 12, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.0, "rtt_best": 30.8, "rtt_worst": 31.5, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.457 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.341 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.776 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 1.719 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.097 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.874 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtt_ms": 5.86 }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtt_ms": 40.841 }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtt_ms": 42.219 }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtt_ms": 41.375 }, { "hop": 10, "ip": "2a00:e90:0:c::7", "rtt_ms": 41.794 }, { "hop": 11, "ip": "2a02:e40::23", "rtt_ms": 32.175 }, { "hop": 12, "ip": "2a02:e40::25", "rtt_ms": 31.225 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: fw1-lju.6connect.com 0.457ms ", " 1: fw1-lju.6connect.com 0.341ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.776ms ", " 3: 2a03:a100:0:201:1::1 1.719ms ", " 4: e0-1.core1.lju1.he.net 2.097ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.874ms ", " 6: 2001:7f8:30:0:2:1:0:8400 5.860ms ", " 7: 2a00:e90::212:200:5:7 40.841ms asymm 20 ", " 8: 2a00:e90::212:200:6:8 42.219ms asymm 19 ", " 9: 2a00:e90::212:200:6:60 41.375ms asymm 18 ", "10: 2a00:e90:0:c::7 41.794ms asymm 19 ", "11: 2a02:e40::23 32.175ms asymm 13 ", "12: 2a02:e40::25 31.225ms reached", " Resume: pmtu 1500 hops 12 back 13 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 32.39178657531738 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 30.87019920349121 } ], "classification": "echo_only" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.673, "avg": 30.774, "max": 30.887 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.351, 0.214 ], "stars": 0, "raw": "2607:fae0:a000::2 0.351 ms 0.214 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.701 ], "stars": 1, "raw": "2607:fae0:a000:2::2 0.701 ms *", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.618 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.618 ms *", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.844, 1.897 ], "stars": 0, "raw": "2001:470:1:5be::1 1.844 ms 1.897 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.351, 8.03 ], "stars": 0, "raw": "2001:470:0:578::1 7.351 ms 8.030 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtts_ms": [ 5.638, 5.665 ], "stars": 0, "raw": "2001:7f8:30:0:2:1:0:8400 5.638 ms 5.665 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtts_ms": [ 40.676, 40.622 ], "stars": 0, "raw": "2a00:e90::212:200:5:7 40.676 ms 40.622 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtts_ms": [ 40.78, 40.959 ], "stars": 0, "raw": "2a00:e90::212:200:6:8 40.780 ms 40.959 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtts_ms": [ 41.038, 41.03 ], "stars": 0, "raw": "2a00:e90::212:200:6:60 41.038 ms 41.030 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 40.0, "mtr_loss_path_mismatch": true }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 50.0, "mtr_loss_path_mismatch": true }, { "hop": 12, "ip": "2a02:e40::25", "rtts_ms": [ 31.057, 31.513 ], "stars": 0, "raw": "2a02:e40::25 31.057 ms 31.513 ms", "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 0.9, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 1.7, "rtt_worst": 4.1, "stdev": 0.7, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 12.0, "rtt_best": 8.3, "rtt_worst": 37.7, "stdev": 9.7, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.3, "rtt_best": 5.9, "rtt_worst": 269.4, "stdev": 83.3, "asn": null, "asname": "NA", "ptr": null }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.7, "rtt_best": 40.6, "rtt_worst": 217.7, "stdev": 55.9, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.7, "rtt_best": 40.9, "rtt_worst": 134.5, "stdev": 29.4, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "loss_pct": 0.0, "sent": 10, "rtt_avg": 42.6, "rtt_best": 41.3, "rtt_worst": 51.2, "stdev": 3.0, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 10, "ip": "2a00:e90:0:c::7", "loss_pct": 40.0, "sent": 10, "rtt_avg": 41.7, "rtt_best": 41.4, "rtt_worst": 42.3, "stdev": 0.3, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 11, "ip": "2a02:e40::23", "loss_pct": 50.0, "sent": 10, "rtt_avg": 31.6, "rtt_best": 31.2, "rtt_worst": 32.3, "stdev": 0.5, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 12, "ip": "2a02:e40::25", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.0, "rtt_best": 30.8, "rtt_worst": 31.5, "stdev": 0.2, "asn": 6700, "asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.457 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.341 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.776 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 1.719 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.097 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.874 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtt_ms": 5.86 }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtt_ms": 40.841 }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtt_ms": 42.219 }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtt_ms": 41.375 }, { "hop": 10, "ip": "2a00:e90:0:c::7", "rtt_ms": 41.794 }, { "hop": 11, "ip": "2a02:e40::23", "rtt_ms": 32.175 }, { "hop": 12, "ip": "2a02:e40::25", "rtt_ms": 31.225 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: fw1-lju.6connect.com 0.457ms ", " 1: fw1-lju.6connect.com 0.341ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.776ms ", " 3: 2a03:a100:0:201:1::1 1.719ms ", " 4: e0-1.core1.lju1.he.net 2.097ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.874ms ", " 6: 2001:7f8:30:0:2:1:0:8400 5.860ms ", " 7: 2a00:e90::212:200:5:7 40.841ms asymm 20 ", " 8: 2a00:e90::212:200:6:8 42.219ms asymm 19 ", " 9: 2a00:e90::212:200:6:60 41.375ms asymm 18 ", "10: 2a00:e90:0:c::7 41.794ms asymm 19 ", "11: 2a02:e40::23 32.175ms asymm 13 ", "12: 2a02:e40::25 31.225ms reached", " Resume: pmtu 1500 hops 12 back 13 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 32.39178657531738 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 30.87019920349121 } ], "origin_asn": 6700, "origin_asname": "BEOTEL-AS - TELEKOM SRBIJA a.d., RS", "rate_limited_hops": [ 5, 10, 11 ], "classification": "echo_only", "yarrp_blackhole": { "edge_router_ip": "2a00:e90::212:200:6:60", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 11, "last_te_ip": "2a02:e40::23", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a03:a100:0:201:1::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2001:470:1:5be::1" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:470:0:578::1" }, { "ttl": 6, "result": "time_exceeded", "from": "2001:7f8:30:0:2:1:0:8400" }, { "ttl": 7, "result": "time_exceeded", "from": "2a00:e90::212:200:5:7" }, { "ttl": 8, "result": "time_exceeded", "from": "2a00:e90::212:200:6:8" }, { "ttl": 9, "result": "time_exceeded", "from": "2a00:e90::212:200:6:60" }, { "ttl": 10, "result": "time_exceeded", "from": "2a00:e90:0:c::7" }, { "ttl": 11, "result": "time_exceeded", "from": "2a02:e40::23" }, { "ttl": 12, "result": "echo_reply", "from": "2a02:e40::25" }, { "ttl": 13, "result": "echo_reply", "from": "2a02:e40::25" }, { "ttl": 14, "result": "echo_reply", "from": "2a02:e40::25" }, { "ttl": 15, "result": "echo_reply", "from": "2a02:e40::25" }, { "ttl": 16, "result": "echo_reply", "from": "2a02:e40::25" } ], "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:49Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a02:e40::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20090508", "org": null, "category": "PA" }, { "prefix": "2001:8c8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20020829", "org": null, "category": "PA" }, { "prefix": "213.244.232.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20030611", "org": null, "category": "PA" }, { "prefix": "195.252.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-971112", "org": null, "category": "PA" }, { "prefix": "62.193.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20000821", "org": null, "category": "PA" }, { "prefix": "178.20.205.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100304", "org": null, "category": "PA" }, { "prefix": "194.106.170.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BEOTEL-NET", "org": "Beotel Net ISP", "category": "PA" }, { "prefix": "185.47.210.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet", "org": null, "category": "PA" }, { "prefix": "62.108.96.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20010904", "org": null, "category": "PA" }, { "prefix": "91.223.162.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RS-TELEKOM-BEONET", "org": null, "category": "PI" }, { "prefix": "91.148.72.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "91.148.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061110", "org": null, "category": "PA" }, { "prefix": "62.108.103.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet-Lopas", "org": null, "category": "PA" }, { "prefix": "217.26.64.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20001016", "org": null, "category": "PA" }, { "prefix": "194.106.160.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-951108", "org": null, "category": "PA" }, { "prefix": "194.106.166.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Beotel_Subotica", "org": "BeotelNet DPI Subotica", "category": "PA" }, { "prefix": "62.108.107.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "Link_016_Lebane", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 2, "invalid": 0, "not_found": 0, "unknown": 0, "total": 2 }, "prefixes": [ { "prefix": "2001:8c8::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a02:e40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 6700, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 6700, "name": "BeotelNet-ISP", "url": "http://www.beotel.net", "peering_policy": "Open", "member_type": "peering", "since": "2020-02-22T07:14:13Z", "ipv6": "2001:7f8:1e::17" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "destination AS6700 (BEOTEL-AS)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 8400, "holder": "TELEKOM-AS TELEKOM SRBIJA a.d.", "prefixes_v6": [ "2a00:e90::/32", "2a06:5b00::/29", "2a06:63c0::/29" ], "trace_only": false, "primary_target_ip": "2a06:63c0::1", "target_ip": "2a06:63c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a06:63c0::1", "host": "(probe)", "source": "probe", "prefix": "2a06:63c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 45.507, "avg": 46.628, "max": 48.396 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 45.692, "avg": 45.896, "max": 46.21 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.223, 0.217 ], "stars": 0, "raw": "2607:fae0:a000::2 0.223 ms 0.217 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.766 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.766 ms *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 3.081, 1.936 ], "stars": 0, "raw": "2001:470:1:5be::1 3.081 ms 1.936 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.874, 7.968 ], "stars": 0, "raw": "2001:470:0:578::1 7.874 ms 7.968 ms" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtts_ms": [ 5.921, 5.834 ], "stars": 0, "raw": "2001:7f8:30:0:2:1:0:8400 5.921 ms 5.834 ms" }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtts_ms": [ 45.765, 46.379 ], "stars": 0, "raw": "2a00:e90::212:200:6:9 45.765 ms 46.379 ms" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtts_ms": [ 45.609, 45.831 ], "stars": 0, "raw": "2a06:63c7::ffff:ffff:ffff:47 45.609 ms 45.831 ms" } ], "last_responsive_hop": 9, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 0.5, "rtt_worst": 7.2, "stdev": 2.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 3.3, "stdev": 0.5 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 9.5, "rtt_best": 7.9, "rtt_worst": 14.6, "stdev": 2.2 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.4, "rtt_best": 5.9, "rtt_worst": 8.3, "stdev": 0.7 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "loss_pct": 0.0, "sent": 10, "rtt_avg": 71.7, "rtt_best": 45.8, "rtt_worst": 301.7, "stdev": 80.8 }, { "hop": 9, "ip": "2a06:63c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 53.6, "rtt_best": 45.7, "rtt_worst": 110.6, "stdev": 20.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.41 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.389 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.907 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.928 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.022 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.338 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtt_ms": 6.035 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtt_ms": 46.268 }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtt_ms": 46.551 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.410ms ", " 1: fw1-lju.6connect.com 0.389ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.907ms ", " 3: 2a03:a100:0:201:1::1 0.928ms ", " 4: e0-1.core1.lju1.he.net 2.022ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.338ms ", " 6: 2001:7f8:30:0:2:1:0:8400 6.035ms ", " 7: 2a00:e90::212:200:6:9 46.268ms asymm 17 ", " 8: no reply", " 9: 2a06:63c7::ffff:ffff:ffff:47 46.551ms reached", " Resume: pmtu 1500 hops 9 back 17 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 19.359111785888672 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 46.056270599365234 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 45.507, "avg": 46.628, "max": 48.396 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 45.692, "avg": 45.896, "max": 46.21 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.223, 0.217 ], "stars": 0, "raw": "2607:fae0:a000::2 0.223 ms 0.217 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.766 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.766 ms *", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 3.081, 1.936 ], "stars": 0, "raw": "2001:470:1:5be::1 3.081 ms 1.936 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 30.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.874, 7.968 ], "stars": 0, "raw": "2001:470:0:578::1 7.874 ms 7.968 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 20.0 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtts_ms": [ 5.921, 5.834 ], "stars": 0, "raw": "2001:7f8:30:0:2:1:0:8400 5.921 ms 5.834 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtts_ms": [ 45.765, 46.379 ], "stars": 0, "raw": "2a00:e90::212:200:6:9 45.765 ms 46.379 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtts_ms": [ 45.609, 45.831 ], "stars": 0, "raw": "2a06:63c7::ffff:ffff:ffff:47 45.609 ms 45.831 ms", "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 9, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.5, "rtt_best": 0.5, "rtt_worst": 7.2, "stdev": 2.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 3.3, "stdev": 0.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 9.5, "rtt_best": 7.9, "rtt_worst": 14.6, "stdev": 2.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.4, "rtt_best": 5.9, "rtt_worst": 8.3, "stdev": 0.7, "asn": null, "asname": "NA", "ptr": null }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "loss_pct": 0.0, "sent": 10, "rtt_avg": 71.7, "rtt_best": 45.8, "rtt_worst": 301.7, "stdev": 80.8, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null }, { "hop": 9, "ip": "2a06:63c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 53.6, "rtt_best": 45.7, "rtt_worst": 110.6, "stdev": 20.2, "asn": 8400, "asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.41 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.389 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.907 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.928 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.022 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.338 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtt_ms": 6.035 }, { "hop": 7, "ip": "2a00:e90::212:200:6:9", "rtt_ms": 46.268 }, { "hop": 9, "ip": "2a06:63c7::ffff:ffff:ffff:47", "rtt_ms": 46.551 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.410ms ", " 1: fw1-lju.6connect.com 0.389ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.907ms ", " 3: 2a03:a100:0:201:1::1 0.928ms ", " 4: e0-1.core1.lju1.he.net 2.022ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.338ms ", " 6: 2001:7f8:30:0:2:1:0:8400 6.035ms ", " 7: 2a00:e90::212:200:6:9 46.268ms asymm 17 ", " 8: no reply", " 9: 2a06:63c7::ffff:ffff:ffff:47 46.551ms reached", " Resume: pmtu 1500 hops 9 back 17 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 19.359111785888672 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 46.056270599365234 } ], "origin_asn": 8400, "origin_asname": "TELEKOM-AS - TELEKOM SRBIJA a.d., RS", "rate_limited_hops": [ 4, 5 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:578::1", "edge_router_ttl": 5, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:59Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a00:e90::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20081113", "org": null, "category": "PA" }, { "prefix": "2a06:5b00::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20180626", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "2a06:63c0::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELEKOM-20150805", "org": "2a06:63c0::/29", "category": "PA" }, { "prefix": "178.237.208.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100630", "org": null, "category": "PA" }, { "prefix": "92.60.225.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20071207", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "46.235.96.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20110210", "org": "TELEKOM SRBIJA, ADSL users", "category": "PA" }, { "prefix": "176.67.192.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20110614", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "195.252.82.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BeotelNet-ISP", "org": null, "category": "PA" }, { "prefix": "91.150.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20061121", "org": null, "category": "PA" }, { "prefix": "89.47.40.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20051129", "org": "Telekom Srbija", "category": "PA" }, { "prefix": "92.60.238.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20071207", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "212.200.0.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-980224", "org": null, "category": "PA" }, { "prefix": "93.86.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20080312", "org": null, "category": "PA" }, { "prefix": "94.228.237.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20081110", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "79.101.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20071112", "org": null, "category": "PA" }, { "prefix": "212.62.59.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-19990301", "org": null, "category": "PA" }, { "prefix": "37.35.8.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-IPCBLOK-20120105", "org": null, "category": "PA" }, { "prefix": "188.240.200.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20090623", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "178.79.16.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100429", "org": "Moja Supernova", "category": "PA" }, { "prefix": "46.17.120.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20101019", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "109.198.0.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20091204", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "185.125.176.0/23", "family": "v4", "status": "ASSIGNED PA", "netname": "TIPPNET-HOTSPOT", "org": "Dynamic IP range for 5G wireless service", "category": "PA" }, { "prefix": "5.134.104.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20120710", "org": "TELEKOM SRBIJA", "category": "PA" }, { "prefix": "178.223.0.0/17", "family": "v4", "status": "ASSIGNED PA", "netname": "TELEKOM-BB-NET", "org": null, "category": "PA" }, { "prefix": "94.228.234.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20081110", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "178.79.0.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100429", "org": "Moja Supernova", "category": "PA" }, { "prefix": "178.220.0.0/15", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100331", "org": null, "category": "PA" }, { "prefix": "176.67.210.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20110614", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "212.200.240.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-980224", "org": null, "category": "PA" }, { "prefix": "212.115.120.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-KTVCOKA-20181105", "org": null, "category": "PA" }, { "prefix": "109.94.232.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20091106", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "212.200.224.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-980224", "org": null, "category": "PA" }, { "prefix": "185.34.92.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20130830", "org": null, "category": "PA" }, { "prefix": "212.200.51.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "TIPPNET-ISP", "org": "TippNet Internet Service Provider", "category": "PA" }, { "prefix": "91.150.66.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "TIPPNET-ISP", "org": "TippNet Internet Service Provider", "category": "PA" }, { "prefix": "188.240.88.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20090623", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "77.46.128.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20070104", "org": null, "category": "PA" }, { "prefix": "178.17.30.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20100311", "org": "Moja Supernova DOO", "category": "PA" }, { "prefix": "93.87.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELEKOM-20080312", "org": null, 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"rtts_ms": [ 21.697, 21.7 ], "stars": 0, "raw": "2001:7f8:1e::12 21.697 ms 21.700 ms" }, { "hop": 12, "ip": "2001:7f8:1e:3::178", "rtts_ms": [ 24.204, 23.42 ], "stars": 0, "raw": "2001:7f8:1e:3::178 24.204 ms !A 23.420 ms !A" } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.4, "rtt_worst": 3.8, "stdev": 1.1 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 1.5, "rtt_worst": 2.0, "stdev": 0.2 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.4, "rtt_best": 1.0, "rtt_worst": 3.8, "stdev": 0.8 }, { "hop": 5, "ip": "2a11:4142:2002::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.6, "rtt_best": 0.9, "rtt_worst": 236.7, "stdev": 74.5 }, { "hop": 6, "ip": "2a11:4140::1e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 36.2, "rtt_best": 21.7, "rtt_worst": 165.7, "stdev": 45.5 }, { "hop": 7, "ip": "2a11:4140::20", "loss_pct": 0.0, "sent": 10, "rtt_avg": 27.9, "rtt_best": 21.7, "rtt_worst": 82.4, "stdev": 19.2 }, { "hop": 8, "ip": "2a11:4140::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.7, "rtt_best": 21.5, "rtt_worst": 22.1, "stdev": 0.2 }, { "hop": 9, "ip": "2620:0:1cff:dead:beee::2537", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.8, "rtt_best": 21.5, "rtt_worst": 22.8, "stdev": 0.4 }, { "hop": 10, "ip": "2001:7f8:58::32cc:0:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.0, "rtt_best": 20.7, "rtt_worst": 21.3, "stdev": 0.2 }, { "hop": 11, "ip": "2001:7f8:1e::12", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.5, "rtt_best": 21.8, "rtt_worst": 26.3, "stdev": 1.4 }, { "hop": 12, "ip": "2001:7f8:1e:3::178", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.6, "rtt_best": 23.6, "rtt_worst": 23.7, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.952 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.35 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.597 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.939 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtt_ms": 0.969 }, { "hop": 5, "ip": "2a11:4142:2002::", "rtt_ms": 1.011 }, { "hop": 6, "ip": "r2-vie1-at.as5405.net", "rtt_ms": 21.809 }, { "hop": 7, "ip": "r2-vie2-at.as5405.net", "rtt_ms": 21.792 }, { "hop": 8, "ip": "r2-bud1-hu.as5405.net", "rtt_ms": 21.965 }, { "hop": 9, "ip": "peer-as5405.pr01.sof1.tfbnw.net", "rtt_ms": 21.786 }, { "hop": 10, "ip": "sox-b.bix.bg", "rtt_ms": 20.803 }, { "hop": 11, "ip": "sw-thq-cisco.sox.rs", "rtt_ms": 31.968 }, { "hop": 12, "ip": "mailserv.sox.rs", "rtt_ms": 25.069 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: fw1-lju.6connect.com 0.952ms ", " 1: fw1-lju.6connect.com 0.350ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.597ms ", " 3: 2a00:ee1:800:9::1 1.939ms ", " 4: 2a00:ee0:1:15::2 0.969ms asymm 3 ", " 5: 2a11:4142:2002:: 1.011ms asymm 6 ", " 6: r2-vie1-at.as5405.net 21.809ms asymm 13 ", " 7: r2-vie2-at.as5405.net 21.792ms asymm 12 ", " 8: r2-bud1-hu.as5405.net 21.965ms asymm 11 ", " 9: peer-as5405.pr01.sof1.tfbnw.net 21.786ms ", "10: sox-b.bix.bg 20.803ms asymm 8 ", "11: sw-thq-cisco.sox.rs 31.968ms asymm 9 ", "12: mailserv.sox.rs 25.069ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 22.087812423706055 }, { "port": 80, "open": true, "rtt_ms": 21.898269653320312 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 21.873, "avg": 21.927, "max": 22.027 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 21.866, "avg": 21.954, "max": 22.017 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.251, 0.178 ], "stars": 0, "raw": "2607:fae0:a000::2 0.251 ms 0.178 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.584, 0.436 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.584 ms 0.436 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 2.008, 1.786 ], "stars": 0, "raw": "2a00:ee1:800:9::1 2.008 ms 1.786 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.925, 0.987 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.925 ms 0.987 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2a11:4142:2002", "rtts_ms": [ 0.968, 0.87 ], "stars": 0, "raw": "2a11:4142:2002:: 0.968 ms 0.870 ms", "asn": null, "asname": null, "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 6, "ip": "2a11:4140::1e", "rtts_ms": [ 21.53, 21.46 ], "stars": 0, "raw": "2a11:4140::1e 21.530 ms 21.460 ms", "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-vie1-at.as5405.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a11:4140::20", "rtts_ms": [ 21.469, 21.533 ], "stars": 0, "raw": "2a11:4140::20 21.469 ms 21.533 ms", "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-vie2-at.as5405.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a11:4140::2c", "rtts_ms": [ 21.5, 21.542 ], "stars": 0, "raw": "2a11:4140::2c 21.500 ms 21.542 ms", "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-bud1-hu.as5405.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2620:0:1cff:dead:beee::2537", "rtts_ms": [ 21.515, 21.366 ], "stars": 0, "raw": "2620:0:1cff:dead:beee::2537 21.515 ms 21.366 ms", "asn": 32934, "asname": "FACEBOOK - Facebook, Inc., US", "ptr": "peer-as5405.pr01.sof1.tfbnw.net", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2001:7f8:58::32cc:0:2", "rtts_ms": [ 20.647, 20.708 ], "stars": 0, "raw": "2001:7f8:58::32cc:0:2 20.647 ms 20.708 ms", "asn": null, "asname": "NA", "ptr": "sox-b.bix.bg", "mtr_loss_pct": 0.0 }, { "hop": 11, "ip": "2001:7f8:1e::12", "rtts_ms": [ 21.812, 21.69 ], "stars": 0, "raw": "2001:7f8:1e::12 21.812 ms 21.690 ms", "asn": 13004, "asname": "Serbian Open eXchange", "ptr": "sw-thq-cisco.sox.rs", "ixp": "sox", "ixp_member_asn": 13004, "ixp_member_name": "Serbian Open eXchange", "six": true, "six_member_asn": 13004, "six_member_name": "Serbian Open eXchange", "mtr_loss_pct": 0.0 }, { "hop": 12, "ip": "2001:7f8:1e:3::166", "rtts_ms": [ 21.874, 21.804 ], "stars": 0, "raw": "2001:7f8:1e:3::166 21.874 ms !A 21.804 ms !A", "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 12, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.6, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 2.1, "rtt_worst": 2.6, "stdev": 0.2, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 1.0, "rtt_worst": 1.3, "stdev": 0.1, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2a11:4142:2002::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.9, "rtt_worst": 1.2, "stdev": 0.1, "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": null }, { "hop": 6, "ip": "2a11:4140::1e", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.8, "rtt_best": 21.7, "rtt_worst": 22.0, "stdev": 0.1, "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-vie1-at.as5405.net" }, { "hop": 7, "ip": "2a11:4140::20", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.2, "rtt_best": 21.6, "rtt_worst": 26.1, "stdev": 1.4, "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-vie2-at.as5405.net" }, { "hop": 8, "ip": "2a11:4140::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.7, "rtt_best": 21.5, "rtt_worst": 22.0, "stdev": 0.2, "asn": 5405, "asname": "INTERDOTLINK - Inter.link GmbH, DE", "ptr": "r2-bud1-hu.as5405.net" }, { "hop": 9, "ip": "2620:0:1cff:dead:beee::2537", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.8, "rtt_best": 21.6, "rtt_worst": 22.6, "stdev": 0.3, "asn": 32934, "asname": "FACEBOOK - Facebook, Inc., US", "ptr": "peer-as5405.pr01.sof1.tfbnw.net" }, { "hop": 10, "ip": "2001:7f8:58::32cc:0:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.9, "rtt_best": 20.7, "rtt_worst": 21.0, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": "sox-b.bix.bg" }, { "hop": 11, "ip": "2001:7f8:1e::12", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.6, "rtt_best": 22.1, "rtt_worst": 34.4, "stdev": 4.5, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "sw-thq-cisco.sox.rs" }, { "hop": 12, "ip": "2001:7f8:1e:3::166", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.2, "rtt_best": 22.1, "rtt_worst": 22.4, "stdev": 0.1, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.855 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.771 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 2.228 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.255 }, { "hop": 5, "ip": "2a11:4142:2002::", "rtt_ms": 1.006 }, { "hop": 6, "ip": "r2-vie1-at.as5405.net", "rtt_ms": 22.111 }, { "hop": 7, "ip": "r2-vie2-at.as5405.net", "rtt_ms": 21.828 }, { "hop": 8, "ip": "r2-bud1-hu.as5405.net", "rtt_ms": 21.831 }, { "hop": 9, "ip": "peer-as5405.pr01.sof1.tfbnw.net", "rtt_ms": 21.635 }, { "hop": 10, "ip": "sox-b.bix.bg", "rtt_ms": 20.939 }, { "hop": 11, "ip": "sw-thq-cisco.sox.rs", "rtt_ms": 23.203 }, { "hop": 12, "ip": "2001:7f8:1e:3::166", "rtt_ms": 22.353 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: fw1-lju.6connect.com 0.855ms ", " 1: fw1-lju.6connect.com 0.771ms ", " 2: no reply", " 3: 2a00:ee1:800:9::1 2.228ms ", " 4: 2a00:ee0:1:10::2 1.255ms asymm 3 ", " 5: 2a11:4142:2002:: 1.006ms asymm 6 ", " 6: r2-vie1-at.as5405.net 22.111ms asymm 12 ", " 7: r2-vie2-at.as5405.net 21.828ms asymm 11 ", " 8: r2-bud1-hu.as5405.net 21.831ms asymm 10 ", " 9: peer-as5405.pr01.sof1.tfbnw.net 21.635ms ", "10: sox-b.bix.bg 20.939ms asymm 8 ", "11: sw-thq-cisco.sox.rs 23.203ms asymm 9 ", "12: 2001:7f8:1e:3::166 22.353ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "origin_asn": 13004, "origin_asname": "SOX - Serbian Open Exchange DOO, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:33f::1", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:32Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "size_before": 31, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "max_before": 31 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "88.218.139.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B3", "org": null, "category": "PA" }, { "prefix": "2001:7f8:1e::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "SOX-IPv6", "org": null, "category": "PI" }, { "prefix": "193.105.163.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": "Todora Dukina 78, 11000 Beograd", "category": "PI" }, { "prefix": "188.120.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PERKE-20090427", "org": null, "category": "PA" }, { "prefix": "91.245.214.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "SOX", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:7f8:1e::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 13004, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", "peering_policy": "Open", "member_type": "peering", "since": "2015-08-20T00:00:00Z", "ipv6": "2001:7f8:1e::1" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": true }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 13004, "name": "Serbian Open eXchange", "url": "https://www.sox.rs/", "peering_policy": "Open", "member_type": "peering", "since": "2015-08-20T00:00:00Z", "ipv6": "2001:7f8:1e::1" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": true } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 13092, "holder": "UB-AS Akademska mreza Republike Srbije - AMRES", "prefixes_v6": [ "2001:4170::/32" ], "trace_only": false, "primary_target_ip": "2001:4170:2801::1", "target_ip": "2001:4170:2801::1", "target_host": "ban.junis.ni.ac.rs", "target_source": "dns-ns", "targets": [ { "ip": "2001:4170:2801::1", "host": "ban.junis.ni.ac.rs", "source": "dns-ns", "prefix": "2001:4170::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 22.202, "avg": 22.802, "max": 23.937 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 22.769, "avg": 22.812, "max": 22.892 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.458, 0.198 ], "stars": 0, "raw": "2607:fae0:a000::2 0.458 ms 0.198 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.069, 2.013 ], "stars": 0, "raw": "2001:470:1:5be::1 2.069 ms 2.013 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.748, 6.308 ], "stars": 0, "raw": "2001:470:0:578::1 7.748 ms 6.308 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:798:1::1b5", "rtts_ms": [ 14.007 ], "stars": 1, "raw": "2001:798:1::1b5 14.007 ms *" }, { "hop": 8, "ip": "2001:798:1::1b6", "rtts_ms": [ 19.608, 19.525 ], "stars": 0, "raw": "2001:798:1::1b6 19.608 ms 19.525 ms" }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 19.789, 23.66 ], "stars": 0, "raw": "2001:4170:1f00:38::2 19.789 ms 23.660 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": "2001:4170:4031::1", "rtts_ms": [ 22.822, 23.122 ], "stars": 0, "raw": "2001:4170:4031::1 22.822 ms 23.122 ms" }, { "hop": 13, "ip": "2001:4170:4018::2", "rtts_ms": [ 23.102, 22.597 ], "stars": 0, "raw": "2001:4170:4018::2 23.102 ms 22.597 ms" }, { "hop": 14, "ip": "2001:4170:2801::1", "rtts_ms": [ 22.567, 22.615 ], "stars": 0, "raw": "2001:4170:2801::1 22.567 ms 22.615 ms" } ], "last_responsive_hop": 14, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.4, "rtt_best": 0.3, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 1.9, "rtt_worst": 3.3, "stdev": 0.5 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 17.2, "rtt_best": 6.1, "rtt_worst": 97.8, "stdev": 28.3 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:2:965", "loss_pct": 0.0, 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[ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.392 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.756 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.612 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.605 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.16 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.46 }, { "hop": 8, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 19.787 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtt_ms": 19.752 }, { "hop": 12, "ip": "2001:4170:4031::1", "rtt_ms": 23.744 }, { "hop": 13, "ip": "2001:4170:4018::2", "rtt_ms": 22.985 }, { "hop": 14, "ip": "ban.junis.ni.ac.rs", "rtt_ms": 22.546 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 0.392ms ", " 1: fw1-lju.6connect.com 0.756ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.612ms ", " 3: 2a03:a100:0:201:1::1 0.605ms ", " 4: e0-1.core1.lju1.he.net 2.160ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.460ms ", " 6: no reply", " 7: no reply", " 8: amres-ias-geant.zag.hr.geant.net 19.787ms asymm 10 ", " 9: 2001:4170:1f00:38::2 19.752ms asymm 10 ", "10: no reply", "11: no reply", "12: 2001:4170:4031::1 23.744ms asymm 14 ", "13: 2001:4170:4018::2 22.985ms asymm 15 ", "14: ban.junis.ni.ac.rs 22.546ms reached", " Resume: pmtu 1500 hops 14 back 16 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "classification": "open" }, { "ip": "2001:4170:0:1::7", "host": "gaea.rcub.bg.ac.rs", "source": "dns-ns", "prefix": "2001:4170::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 19.535, "avg": 20.046, "max": 21.228 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 19.808, "avg": 19.842, "max": 19.876 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.486, 0.528 ], "stars": 0, "raw": "2607:fae0:a000::2 0.486 ms 0.528 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.528 ], "stars": 1, "raw": "2607:fae0:a000:2::2 0.528 ms *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.57, 0.595 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.570 ms 0.595 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.777, 1.38 ], "stars": 0, "raw": "2001:470:1:5be::1 1.777 ms 1.380 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.703, 6.389 ], "stars": 0, "raw": "2001:470:0:578::1 7.703 ms 6.389 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2001:798:1::1b6", "rtts_ms": [ 21.354, 19.491 ], "stars": 0, "raw": "2001:798:1::1b6 21.354 ms 19.491 ms" }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 19.601, 19.897 ], "stars": 0, "raw": "2001:4170:1f00:38::2 19.601 ms 19.897 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": "2001:4170:0:1::7", "rtts_ms": [ 19.877, 19.777 ], "stars": 0, "raw": "2001:4170:0:1::7 19.877 ms !A 19.777 ms !A" } ], "last_responsive_hop": 11, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.3, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 30.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.6, "rtt_worst": 1.8, "stdev": 0.4 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 3.3, "stdev": 0.4 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 35.0, "rtt_best": 7.8, "rtt_worst": 244.7, "stdev": 78.6 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:2:965", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.5, "rtt_best": 5.8, "rtt_worst": 150.9, "stdev": 45.8 }, { "hop": 7, "ip": "2001:798:1::1b5", "loss_pct": 40.0, "sent": 10, "rtt_avg": 23.6, "rtt_best": 14.1, "rtt_worst": 70.2, "stdev": 22.8 }, { "hop": 8, "ip": "2001:798:1::1b6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.9, "rtt_best": 19.5, "rtt_worst": 21.2, "stdev": 0.6 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.1, "rtt_best": 19.6, "rtt_worst": 21.5, "stdev": 0.6 }, { "hop": 11, "ip": "2001:4170:0:1::7", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.4, "rtt_best": 19.6, "rtt_worst": 23.0, "stdev": 1.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.609 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.373 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.813 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.715 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.686 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.512 }, { "hop": 7, "ip": "amres-ias-geant-gw.zag.hr.geant.net", "rtt_ms": 14.279 }, { "hop": 8, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 19.617 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtt_ms": 19.841 }, { "hop": 11, "ip": "gaea.rcub.bg.ac.rs", "rtt_ms": 19.646 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: fw1-lju.6connect.com 0.609ms ", " 1: fw1-lju.6connect.com 0.373ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.813ms ", " 3: 2a03:a100:0:201:1::1 0.715ms ", " 4: e0-1.core1.lju1.he.net 2.686ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.512ms ", " 6: no reply", " 7: amres-ias-geant-gw.zag.hr.geant.net 14.279ms asymm 8 ", " 8: amres-ias-geant.zag.hr.geant.net 19.617ms asymm 10 ", " 9: 2001:4170:1f00:38::2 19.841ms asymm 10 ", "10: no reply", "11: gaea.rcub.bg.ac.rs 19.646ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "classification": "open" }, { "ip": "2001:4170:0:1::5", "host": "ns.rcub.bg.ac.rs", "source": "dns-ns", "prefix": "2001:4170::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 19.564, "avg": 19.64, "max": 19.678 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 19.666, "avg": 19.692, "max": 19.71 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.33, 0.237 ], "stars": 0, "raw": "2607:fae0:a000::2 0.330 ms 0.237 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.512, 0.439 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.512 ms 0.439 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.502, 0.347 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.502 ms 0.347 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.779, 1.929 ], "stars": 0, "raw": "2001:470:1:5be::1 1.779 ms 1.929 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 6.934, 8.159 ], "stars": 0, "raw": "2001:470:0:578::1 6.934 ms 8.159 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": "2001:798:1::1b5", "rtts_ms": [ 14.118, 14.025 ], "stars": 0, "raw": "2001:798:1::1b5 14.118 ms 14.025 ms" }, { "hop": 8, "ip": "2001:798:1::1b6", "rtts_ms": [ 19.465, 19.915 ], "stars": 0, "raw": "2001:798:1::1b6 19.465 ms 19.915 ms" }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 19.392, 19.61 ], "stars": 0, "raw": "2001:4170:1f00:38::2 19.392 ms 19.610 ms" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": "2001:4170:0:1::5", "rtts_ms": [ 19.751, 21.079 ], "stars": 0, "raw": "2001:4170:0:1::5 19.751 ms !A 21.079 ms !A" } ], "last_responsive_hop": 11, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.5, "rtt_worst": 1.4, "stdev": 0.3 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.6, "rtt_worst": 1.7, "stdev": 0.3 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.7, "rtt_worst": 2.7, "stdev": 0.3 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.3, "rtt_best": 6.9, "rtt_worst": 9.6, "stdev": 0.9 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:2:965", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.0, "rtt_best": 5.8, "rtt_worst": 6.8, "stdev": 0.3 }, { "hop": 7, "ip": "2001:798:1::1b5", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.3, "rtt_best": 14.1, "rtt_worst": 15.6, "stdev": 0.4 }, { "hop": 8, "ip": "2001:798:1::1b6", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.7, "rtt_best": 19.6, "rtt_worst": 20.6, "stdev": 0.3 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.7, "rtt_best": 19.7, "rtt_worst": 38.8, "stdev": 6.0 }, { "hop": 11, "ip": "2001:4170:0:1::5", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.1, "rtt_best": 19.7, "rtt_worst": 21.5, "stdev": 0.5 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.039 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.474 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.423 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.665 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.742 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.918 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.021 }, { "hop": 7, "ip": "amres-ias-geant-gw.zag.hr.geant.net", "rtt_ms": 14.237 }, { "hop": 8, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 19.622 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtt_ms": 21.229 }, { "hop": 11, "ip": "ns.rcub.bg.ac.rs", "rtt_ms": 20.07 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.039ms pmtu 1500", " 1: fw1-lju.6connect.com 0.474ms ", " 1: fw1-lju.6connect.com 0.423ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.665ms ", " 3: 2a03:a100:0:201:1::1 0.742ms ", " 4: e0-1.core1.lju1.he.net 1.918ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.021ms ", " 6: no reply", " 7: amres-ias-geant-gw.zag.hr.geant.net 14.237ms asymm 8 ", " 8: amres-ias-geant.zag.hr.geant.net 19.622ms asymm 10 ", " 9: 2001:4170:1f00:38::2 21.229ms asymm 10 ", "10: no reply", "11: ns.rcub.bg.ac.rs 20.070ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 22.202, "avg": 22.802, "max": 23.937 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 22.769, "avg": 22.812, "max": 22.892 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.458, 0.198 ], "stars": 0, "raw": "2607:fae0:a000::2 0.458 ms 0.198 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.069, 2.013 ], "stars": 0, "raw": "2001:470:1:5be::1 2.069 ms 2.013 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.748, 6.308 ], "stars": 0, "raw": "2001:470:0:578::1 7.748 ms 6.308 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 7, "ip": "2001:798:1::1b5", "rtts_ms": [ 14.007 ], "stars": 1, "raw": "2001:798:1::1b5 14.007 ms *", "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant-gw.zag.hr.geant.net", "mtr_loss_pct": 90.0 }, { "hop": 8, "ip": "2001:798:1::1b6", "rtts_ms": [ 19.608, 19.525 ], "stars": 0, "raw": "2001:798:1::1b6 19.608 ms 19.525 ms", "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant.zag.hr.geant.net", "mtr_loss_pct": 10.0 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtts_ms": [ 19.789, 23.66 ], "stars": 0, "raw": "2001:4170:1f00:38::2 19.789 ms 23.660 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": "2001:4170:4031::1", "rtts_ms": [ 22.822, 23.122 ], "stars": 0, "raw": "2001:4170:4031::1 22.822 ms 23.122 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 13, "ip": "2001:4170:4018::2", "rtts_ms": [ 23.102, 22.597 ], "stars": 0, "raw": "2001:4170:4018::2 23.102 ms 22.597 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 14, "ip": "2001:4170:2801::1", "rtts_ms": [ 22.567, 22.615 ], "stars": 0, "raw": "2001:4170:2801::1 22.567 ms 22.615 ms", "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": "ban.junis.ni.ac.rs", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 14, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.4, "rtt_best": 0.3, "rtt_worst": 0.8, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.4, "rtt_best": 1.9, "rtt_worst": 3.3, "stdev": 0.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 17.2, "rtt_best": 6.1, "rtt_worst": 97.8, "stdev": 28.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:2:965", "loss_pct": 0.0, "sent": 10, "rtt_avg": 5.9, "rtt_best": 5.8, "rtt_worst": 6.2, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": "vie-ix.geant.net" }, { "hop": 7, "ip": "2001:798:1::1b5", "loss_pct": 90.0, "sent": 10, "rtt_avg": 14.6, "rtt_best": 14.6, "rtt_worst": 14.6, "stdev": 0.0, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant-gw.zag.hr.geant.net" }, { "hop": 8, "ip": "2001:798:1::1b6", "loss_pct": 10.0, "sent": 10, "rtt_avg": 19.7, "rtt_best": 19.4, "rtt_worst": 20.0, "stdev": 0.2, "asn": 20965, "asname": "GEANT - GEANT Vereniging, NL", "ptr": "amres-ias-geant.zag.hr.geant.net" }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.9, "rtt_best": 19.7, "rtt_worst": 20.9, "stdev": 0.3, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 12, "ip": "2001:4170:4018::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.7, "rtt_best": 22.4, "rtt_worst": 23.1, "stdev": 0.3, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 13, "ip": "2001:4170:4018::2", "loss_pct": 10.0, "sent": 10, "rtt_avg": 22.9, "rtt_best": 22.6, "rtt_worst": 23.2, "stdev": 0.2, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": null }, { "hop": 14, "ip": "2001:4170:2801::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.8, "rtt_best": 22.5, "rtt_worst": 23.7, "stdev": 0.4, "asn": 13092, "asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "ptr": "ban.junis.ni.ac.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.392 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.756 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.612 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.605 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.16 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.46 }, { "hop": 8, "ip": "amres-ias-geant.zag.hr.geant.net", "rtt_ms": 19.787 }, { "hop": 9, "ip": "2001:4170:1f00:38::2", "rtt_ms": 19.752 }, { "hop": 12, "ip": "2001:4170:4031::1", "rtt_ms": 23.744 }, { "hop": 13, "ip": "2001:4170:4018::2", "rtt_ms": 22.985 }, { "hop": 14, "ip": "ban.junis.ni.ac.rs", "rtt_ms": 22.546 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 0.392ms ", " 1: fw1-lju.6connect.com 0.756ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.612ms ", " 3: 2a03:a100:0:201:1::1 0.605ms ", " 4: e0-1.core1.lju1.he.net 2.160ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.460ms ", " 6: no reply", " 7: no reply", " 8: amres-ias-geant.zag.hr.geant.net 19.787ms asymm 10 ", " 9: 2001:4170:1f00:38::2 19.752ms asymm 10 ", "10: no reply", "11: no reply", "12: 2001:4170:4031::1 23.744ms asymm 14 ", "13: 2001:4170:4018::2 22.985ms asymm 15 ", "14: ban.junis.ni.ac.rs 22.546ms reached", " Resume: pmtu 1500 hops 14 back 16 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "[Errno 13] Permission denied" }, { "port": 80, "open": false, "refused": false, "error": "[Errno 13] Permission denied" } ], "origin_asn": 13092, "origin_asname": "UB-AS - Akademska mreza Republike Srbije - AMRES, RS", "rate_limited_hops": [ 4, 7, 8, 13 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:798:1::1b5", "edge_router_ttl": 14, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:24Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "size_before": 156, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 156B; not big enough to test PMTU shrink", "max_before": 156 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "91.187.144.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "2001:4170::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-RCUB-20041012", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.128.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "185.181.68.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20161209", "org": null, "category": "PA" }, { "prefix": "91.187.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RCUB-20061127", "org": null, "category": "PA" }, { "prefix": "147.91.0.0/17", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" }, { "prefix": "147.91.0.0/16", "family": "v4", "status": "LEGACY", "netname": "UNINET-BG", "org": "Akademska mreza Republike Srbije - AMRES", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:4170::/32", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 15958, "holder": "CETIN_doo_AS CETIN Ltd. Belgrade", "prefixes_v6": [ "2a01:ac80::/32" ], "trace_only": false, "primary_target_ip": "2a01:ac80::1", "target_ip": "2a01:ac80::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a01:ac80::1", "host": "(probe)", "source": "probe", "prefix": "2a01:ac80::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.665, "avg": 31.8, "max": 32.074 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.289, 0.232 ], "stars": 0, "raw": "2607:fae0:a000::2 0.289 ms 0.232 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.77 ], "stars": 1, "raw": "* 2607:fae0:a000:2::2 0.770 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.82 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.820 ms *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.71, 2.182 ], "stars": 0, "raw": "2001:470:1:5be::1 1.710 ms 2.182 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.503, 7.88 ], "stars": 0, "raw": "2001:470:0:578::1 7.503 ms 7.880 ms" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2a01:ac80::1", "rtts_ms": [ 32.335, 32.006 ], "stars": 0, "raw": "2a01:ac80::1 32.335 ms 32.006 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 1.1, "stdev": 0.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 70.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 0.8, "rtt_worst": 3.5, "stdev": 0.9 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.7, "rtt_worst": 3.4, "stdev": 0.5 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.9, "rtt_best": 7.0, "rtt_worst": 11.1, "stdev": 1.2 }, { "hop": 7, "ip": "2a01:ac80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 61.1, "rtt_best": 31.8, "rtt_worst": 321.8, "stdev": 91.6 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.439 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.443 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.856 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.492 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 6.982 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 8.459 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 0.439ms ", " 1: fw1-lju.6connect.com 0.443ms ", " 2: no reply", " 3: 2a03:a100:0:201:1::1 0.856ms ", " 4: e0-1.core1.lju1.he.net 2.492ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 6.982ms ", " 6: e0-35.core2.bts1.he.net 8.459ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "echo_only" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 31.665, "avg": 31.8, "max": 32.074 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.289, 0.232 ], "stars": 0, "raw": "2607:fae0:a000::2 0.289 ms 0.232 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.77 ], "stars": 1, "raw": "* 2607:fae0:a000:2::2 0.770 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.82 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.820 ms *", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.71, 2.182 ], "stars": 0, "raw": "2001:470:1:5be::1 1.710 ms 2.182 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.503, 7.88 ], "stars": 0, "raw": "2001:470:0:578::1 7.503 ms 7.880 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": "2a01:ac80::1", "rtts_ms": [ 32.335, 32.006 ], "stars": 0, "raw": "2a01:ac80::1 32.335 ms 32.006 ms", "asn": 15958, "asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 1.1, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 0.8, "rtt_worst": 3.5, "stdev": 0.9, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.7, "rtt_worst": 3.4, "stdev": 0.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.9, "rtt_best": 7.0, "rtt_worst": 11.1, "stdev": 1.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 7, "ip": "2a01:ac80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 61.1, "rtt_best": 31.8, "rtt_worst": 321.8, "stdev": 91.6, "asn": 15958, "asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.439 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.443 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.856 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.492 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 6.982 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 8.459 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 0.439ms ", " 1: fw1-lju.6connect.com 0.443ms ", " 2: no reply", " 3: 2a03:a100:0:201:1::1 0.856ms ", " 4: e0-1.core1.lju1.he.net 2.492ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 6.982ms ", " 6: e0-35.core2.bts1.he.net 8.459ms ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 15958, "origin_asname": "CETIN_doo_AS - CETIN Ltd. Belgrade, RS", "rate_limited_hops": [ 3, 5 ], "classification": "echo_only", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:412::2", "edge_router_ttl": 6, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 5, "last_te_ip": "2001:470:0:578::1", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a03:a100:0:201:1::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2001:470:1:5be::1" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:470:0:578::1" }, { "ttl": 6, "result": "no_response" }, { "ttl": 7, "result": "echo_reply", "from": "2a01:ac80::1" }, { "ttl": 8, "result": "echo_reply", "from": "2a01:ac80::1" }, { "ttl": 9, "result": "echo_reply", "from": "2a01:ac80::1" }, { "ttl": 10, "result": "echo_reply", "from": "2a01:ac80::1" }, { "ttl": 11, "result": "echo_reply", "from": "2a01:ac80::1" }, { "ttl": 12, "result": "echo_reply", "from": "2a01:ac80::1" } ], "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:33Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a01:ac80::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-CETIN-20110704", "org": null, "category": "PA" }, { "prefix": "109.245.168.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.192.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "109.245.144.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.200.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "109.245.0.0/16", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20091223", "org": null, "category": "PA" }, { "prefix": "109.106.224.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20091019", "org": null, "category": "PA" }, { "prefix": "109.245.128.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.201.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "P2P-CETINDOO-NET", "org": "CETIN internal point-to-point links", "category": "PA" }, { "prefix": "217.65.204.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" }, { "prefix": "217.65.202.0/23", "family": "v4", "status": "ASSIGNED PA", "netname": "P2P-CETINDOO-NET", "org": "CETIN internal point-to-point links", "category": "PA" }, { "prefix": "109.245.160.0/21", "family": "v4", "status": "ASSIGNED PA", "netname": "CETINDOO-APN-NET", "org": "Cetin doo Serbia fixed-mobile access to the Internet", "category": "PA" }, { "prefix": "217.65.196.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-CETIN-20001102", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a01:ac80::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 15958, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 15958, "name": "CETIN Ltd. Belgrade", "url": "https://www.cetin.rs", "peering_policy": "Selective", "member_type": "peering", "since": "2012-11-02T00:00:00Z", "ipv6": "2001:7f8:1e::45" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 15958, "name": "CETIN Ltd. Belgrade", "url": "https://www.cetin.rs", "peering_policy": "Selective", "member_type": "peering", "since": "2012-11-02T00:00:00Z", "ipv6": "2001:7f8:1e::45" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "destination AS15958 (CETIN_doo_AS)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 31042, "holder": "SERBIA-BROADBAND-AS Serbia BroadBand-Srpske Kablovske mreze d.o.o.", "prefixes_v6": [ "2a00:1dd8::/29", "2a03:87c0::/29" ], "trace_only": false, "primary_target_ip": "2a03:87c0::1", "target_ip": "2a03:87c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a03:87c0::1", "host": "(probe)", "source": "probe", "prefix": "2a03:87c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 9.416, "avg": 19.916, "max": 24.071 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 10.911, "avg": 21.838, "max": 30.934 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.254, 0.185 ], "stars": 0, "raw": "2607:fae0:a000::2 0.254 ms 0.185 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.442, 8.194 ], "stars": 0, "raw": "2001:470:0:578::1 7.442 ms 8.194 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 19.291, 20.463 ], "stars": 0, "raw": "2001:470:0:7ef::1 19.291 ms 20.463 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.628, 19.383 ], "stars": 0, "raw": "2001:470:e:5a::2 19.628 ms 19.383 ms" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2001:7f8::7942:0:2", "rtts_ms": [ 38.862, 39.026 ], "stars": 0, "raw": "2001:7f8::7942:0:2 38.862 ms 39.026 ms" }, { "hop": 10, "ip": "2a00:1dd8:2:4", "rtts_ms": [ 24.766, 25.859 ], "stars": 0, "raw": "2a00:1dd8:2:4:: 24.766 ms 25.859 ms" }, { "hop": 11, "ip": "2a00:1dd8:2:25::1", "rtts_ms": [ 25.864, 23.797 ], "stars": 0, "raw": "2a00:1dd8:2:25::1 25.864 ms 23.797 ms" }, { "hop": 12, "ip": "2a00:1dd8:2:c000::1", "rtts_ms": [ 37.461, 37.185 ], "stars": 0, "raw": "2a00:1dd8:2:c000::1 37.461 ms 37.185 ms" } ], "last_responsive_hop": 12, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.3, "rtt_worst": 1.6, "stdev": 0.4 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.8, "stdev": 0.0 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.8, "stdev": 0.0 }, { "hop": 4, "ip": "2001:7f8:46::2:1215", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.0, "rtt_best": 9.1, "rtt_worst": 10.8, "stdev": 0.6 }, { "hop": 5, "ip": "2a03:dd80:2::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.9, "rtt_best": 22.7, "rtt_worst": 25.9, "stdev": 1.0 }, { "hop": 6, "ip": "2a00:1dd8:2:1::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.6, "rtt_best": 23.1, "rtt_worst": 24.6, "stdev": 0.5 }, { "hop": 7, "ip": "2a00:1dd8:2:24::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.3, "rtt_best": 9.7, "rtt_worst": 257.3, "stdev": 78.0 }, { "hop": 8, "ip": "2a03:87c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 40.5, "rtt_best": 9.2, "rtt_worst": 134.0, "stdev": 40.8 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.533 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.561 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.711 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.68 }, { "hop": 4, "ip": "2001:7f8:46::2:1215", "rtt_ms": 9.583 }, { "hop": 5, "ip": "2a03:dd80:2::1", "rtt_ms": 24.228 }, { "hop": 6, "ip": "bg-tp-m-0-be3.sbb.rs", "rtt_ms": 23.212 }, { "hop": 7, "ip": "bg-ne-m-10-be1.sbb.rs", "rtt_ms": 23.763 }, { "hop": 8, "ip": "bg-tp-c-1-po2.sbb.rs", "rtt_ms": 12.345 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.533ms ", " 1: fw1-lju.6connect.com 0.561ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.711ms ", " 3: 2a03:a100:0:201:1::1 0.680ms ", " 4: 2001:7f8:46::2:1215 9.583ms ", " 5: 2a03:dd80:2::1 24.228ms asymm 10 ", " 6: bg-tp-m-0-be3.sbb.rs 23.212ms asymm 11 ", " 7: bg-ne-m-10-be1.sbb.rs 23.763ms asymm 12 ", " 8: bg-tp-c-1-po2.sbb.rs 12.345ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 24.216890335083008 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 37.57667541503906 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 9.416, "avg": 19.916, "max": 24.071 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 10.911, "avg": 21.838, "max": 30.934 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.254, 0.185 ], "stars": 0, "raw": "2607:fae0:a000::2 0.254 ms 0.185 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 90.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.442, 8.194 ], "stars": 0, "raw": "2001:470:0:578::1 7.442 ms 8.194 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 19.291, 20.463 ], "stars": 0, "raw": "2001:470:0:7ef::1 19.291 ms 20.463 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-19.core2.fra2.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.628, 19.383 ], "stars": 0, "raw": "2001:470:e:5a::2 19.628 ms 19.383 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core4.fra1.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": "2001:7f8::7942:0:2", "rtts_ms": [ 38.862, 39.026 ], "stars": 0, "raw": "2001:7f8::7942:0:2 38.862 ms 39.026 ms", "asn": null, "asname": "NA", "ptr": null }, { "hop": 10, "ip": "2a00:1dd8:2:4", "rtts_ms": [ 24.766, 25.859 ], "stars": 0, "raw": "2a00:1dd8:2:4:: 24.766 ms 25.859 ms", "asn": null, "asname": null, "ptr": null }, { "hop": 11, "ip": "2a00:1dd8:2:25::1", "rtts_ms": [ 25.864, 23.797 ], "stars": 0, "raw": "2a00:1dd8:2:25::1 25.864 ms 23.797 ms", "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-tp-m-10-be2.sbb.rs" }, { "hop": 12, "ip": "2a00:1dd8:2:c000::1", "rtts_ms": [ 37.461, 37.185 ], "stars": 0, "raw": "2a00:1dd8:2:c000::1 37.461 ms 37.185 ms", "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-tp-c-1-po1.sbb.rs" } ], "last_responsive_hop": 12, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.3, "rtt_worst": 1.6, "stdev": 0.4, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.8, "stdev": 0.0, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 90.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.8, "rtt_worst": 0.8, "stdev": 0.0, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:7f8:46::2:1215", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.0, "rtt_best": 9.1, "rtt_worst": 10.8, "stdev": 0.6, "asn": 51988, "asname": "ARNES-SIX - ARNES, SI", "ptr": null }, { "hop": 5, "ip": "2a03:dd80:2::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.9, "rtt_best": 22.7, "rtt_worst": 25.9, "stdev": 1.0, "asn": 21215, "asname": "UGNI - UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd, RS", "ptr": null }, { "hop": 6, "ip": "2a00:1dd8:2:1::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.6, "rtt_best": 23.1, "rtt_worst": 24.6, "stdev": 0.5, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-tp-m-0-be3.sbb.rs" }, { "hop": 7, "ip": "2a00:1dd8:2:24::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 35.3, "rtt_best": 9.7, "rtt_worst": 257.3, "stdev": 78.0, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": "bg-tp-m-10-be1.sbb.rs" }, { "hop": 8, "ip": "2a03:87c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 40.5, "rtt_best": 9.2, "rtt_worst": 134.0, "stdev": 40.8, "asn": 31042, "asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.533 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.561 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.711 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.68 }, { "hop": 4, "ip": "2001:7f8:46::2:1215", "rtt_ms": 9.583 }, { "hop": 5, "ip": "2a03:dd80:2::1", "rtt_ms": 24.228 }, { "hop": 6, "ip": "bg-tp-m-0-be3.sbb.rs", "rtt_ms": 23.212 }, { "hop": 7, "ip": "bg-ne-m-10-be1.sbb.rs", "rtt_ms": 23.763 }, { "hop": 8, "ip": "bg-tp-c-1-po2.sbb.rs", "rtt_ms": 12.345 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.533ms ", " 1: fw1-lju.6connect.com 0.561ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.711ms ", " 3: 2a03:a100:0:201:1::1 0.680ms ", " 4: 2001:7f8:46::2:1215 9.583ms ", " 5: 2a03:dd80:2::1 24.228ms asymm 10 ", " 6: bg-tp-m-0-be3.sbb.rs 23.212ms asymm 11 ", " 7: bg-ne-m-10-be1.sbb.rs 23.763ms asymm 12 ", " 8: bg-tp-c-1-po2.sbb.rs 12.345ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 24.216890335083008 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 37.57667541503906 } ], "origin_asn": 31042, "origin_asname": "SERBIA-BROADBAND-AS - Yettel d.o.o., RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:1dd8:2:c000::1", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [ "2a00:1dd8:2:1::", "2a00:1dd8:2:24::1", "2a00:1dd8:2:25::1", "2a00:1dd8:2:26::1", "2a00:1dd8:2:27::1", "2a00:1dd8:2:4::", "2a00:1dd8:2:c000::1", "2a00:1dd8:2:c001::1" ], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "natural-fragmentation", "port": null, "reason": "natural Echo Reply at 1500B was already split into IPv6 fragments without our PTB intervention -- the destination's stack has a cached path MTU below 1500B from a previously-honored ICMPv6 Type 2, which is itself evidence that this destination honors PTB on this path.", "tested_at": "2026-05-30T11:29:53Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": "natural Echo Reply at 1500B was already split into IPv6 fragments without our PTB intervention -- the destination's stack has a cached path MTU below 1500B from a previously-honored ICMPv6 Type 2, which is itself evidence that this destination honors PTB on this path.", "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "reason": "natural Echo Reply at 1500B was already split into IPv6 fragments without our PTB intervention -- the destination's stack has a cached path MTU below 1500B from a previously-honored ICMPv6 Type 2, which is itself evidence that this destination honors PTB on this path.", "probe_size": 1500, "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "natural-fragmentation" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2a03:87c0::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-SBB-NET-20121211", "org": null, "category": 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"e0-1.core1.lju1.he.net", "rtt_ms": 2.098 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.653 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 8.358 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 14.96 }, { "hop": 8, "ip": "serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net", "rtt_ms": 17.196 }, { "hop": 9, "ip": "mcloud.sox.rs", "rtt_ms": 17.127 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.032ms pmtu 1500", " 1: fw1-lju.6connect.com 0.670ms ", " 1: fw1-lju.6connect.com 0.704ms ", " 2: no reply", " 3: no reply", " 4: e0-1.core1.lju1.he.net 2.098ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.653ms ", " 6: e0-35.core2.bts1.he.net 8.358ms ", " 7: e0-36.core2.beg1.he.net 14.960ms ", " 8: serbian-open-exchange-doo.10gigabitethernet1-1-2.switch1.beg1.he.net 17.196ms ", " 9: mcloud.sox.rs 17.127ms ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 16.77536964416504 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 16.837596893310547 } ], "origin_asn": 35779, "origin_asname": "MCLOUD-AS - mCloud doo, RS", "rate_limited_hops": [ 3, 5 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:1:6e5::2", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:59Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a07:de80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.125.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "194.146.56.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20180529", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.127.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.126.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" }, { "prefix": "188.93.124.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-MCLOUD-20090514", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a07:de80::/29", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 41897, "holder": "SAT-TRAKT-AS Sat-Trakt D.O.O.", "prefixes_v6": [ "2a00:ad03::/32", "2a0c:6300::/30", "2a00:ad07:3000::/36", "2a00:ad00::/29", "2a00:ad00:2010::/44" ], "trace_only": false, "primary_target_ip": "2a0c:6300::1", "target_ip": "2a0c:6300::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:6300::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:6300::/30", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 15.224, "avg": 15.646, "max": 16.441 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 16.429, "avg": 16.559, "max": 16.716 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.232, 0.202 ], "stars": 0, "raw": "2607:fae0:a000::2 0.232 ms 0.202 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.025 ], "stars": 1, "raw": "2001:470:1:5be::1 2.025 ms *" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.678, 8.123 ], "stars": 0, "raw": "2001:470:0:578::1 7.678 ms 8.123 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.381, 8.007 ], "stars": 0, "raw": "2001:470:0:412::2 7.381 ms 8.007 ms" }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "rtts_ms": [ 16.607, 15.465 ], "stars": 0, "raw": "2001:7f8:35::4:1897:1 16.607 ms 15.465 ms" }, { "hop": 8, "ip": "2a00:ad00:1000:11::2", "rtts_ms": [ 25.537, 16.015 ], "stars": 0, "raw": "2a00:ad00:1000:11::2 25.537 ms 16.015 ms" }, { "hop": 9, "ip": "2a00:ad00:1000:11::2", "rtts_ms": [ 15.986, 15.775 ], "stars": 0, "raw": "2a00:ad00:1000:11::2 15.986 ms 15.775 ms" }, { "hop": 10, "ip": "2a0c:6300::1", "rtts_ms": [ 15.417, 15.288 ], "stars": 0, "raw": "2a0c:6300::1 15.417 ms 15.288 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.3, "rtt_worst": 0.9, "stdev": 0.2 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.7, "stdev": 0.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 3.0, "stdev": 0.4 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.5, "rtt_best": 7.2, "rtt_worst": 10.1, "stdev": 1.0 }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.6, "rtt_best": 15.3, "rtt_worst": 16.0, "stdev": 0.2 }, { "hop": 8, "ip": "2a00:ad00:1000:17::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.0, "rtt_best": 15.9, "rtt_worst": 234.2, "stdev": 68.9 }, { "hop": 9, "ip": "2a0c:6300::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.4, "rtt_best": 15.3, "rtt_worst": 122.7, "stdev": 33.8 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.535 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.555 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.77 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.865 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.091 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.822 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.84 }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "rtt_ms": 16.426 }, { "hop": 8, "ip": "2a00:ad00:1000:17::2", "rtt_ms": 16.356 }, { "hop": 9, "ip": "2a0c:6300::1", "rtt_ms": 16.689 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.535ms ", " 1: fw1-lju.6connect.com 0.555ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.770ms ", " 3: 2a03:a100:0:201:1::1 0.865ms ", " 4: e0-1.core1.lju1.he.net 2.091ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.822ms ", " 6: e0-35.core2.bts1.he.net 7.840ms ", " 7: 2001:7f8:35::4:1897:1 16.426ms asymm 11 ", " 8: 2a00:ad00:1000:17::2 16.356ms asymm 9 ", " 9: 2a0c:6300::1 16.689ms reached", " Resume: pmtu 1500 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 30.498027801513672 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 16.489267349243164 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 15.224, "avg": 15.646, "max": 16.441 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 16.429, "avg": 16.559, "max": 16.716 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.232, 0.202 ], "stars": 0, "raw": "2607:fae0:a000::2 0.232 ms 0.202 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 70.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.025 ], "stars": 1, "raw": "2001:470:1:5be::1 2.025 ms *", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.678, 8.123 ], "stars": 0, "raw": "2001:470:0:578::1 7.678 ms 8.123 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.381, 8.007 ], "stars": 0, "raw": "2001:470:0:412::2 7.381 ms 8.007 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "rtts_ms": [ 16.607, 15.465 ], "stars": 0, "raw": "2001:7f8:35::4:1897:1 16.607 ms 15.465 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a00:ad00:1000:11::2", "rtts_ms": [ 25.537, 16.015 ], "stars": 0, "raw": "2a00:ad00:1000:11::2 25.537 ms 16.015 ms", "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 9, "ip": "2a00:ad00:1000:11::2", "rtts_ms": [ 15.986, 15.775 ], "stars": 0, "raw": "2a00:ad00:1000:11::2 15.986 ms 15.775 ms", "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 10, "ip": "2a0c:6300::1", "rtts_ms": [ 15.417, 15.288 ], "stars": 0, "raw": "2a0c:6300::1 15.417 ms 15.288 ms", "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.3, "rtt_worst": 0.9, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.7, "stdev": 0.0, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 3.0, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.5, "rtt_best": 7.2, "rtt_worst": 10.1, "stdev": 1.0, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.6, "rtt_best": 15.3, "rtt_worst": 16.0, "stdev": 0.2, "asn": null, "asname": "NA", "ptr": null }, { "hop": 8, "ip": "2a00:ad00:1000:17::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 38.0, "rtt_best": 15.9, "rtt_worst": 234.2, "stdev": 68.9, "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null }, { "hop": 9, "ip": "2a0c:6300::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.4, "rtt_best": 15.3, "rtt_worst": 122.7, "stdev": 33.8, "asn": 41897, "asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.535 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.555 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.77 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.865 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.091 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.822 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.84 }, { "hop": 7, "ip": "2001:7f8:35::4:1897:1", "rtt_ms": 16.426 }, { "hop": 8, "ip": "2a00:ad00:1000:17::2", "rtt_ms": 16.356 }, { "hop": 9, "ip": "2a0c:6300::1", "rtt_ms": 16.689 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.535ms ", " 1: fw1-lju.6connect.com 0.555ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.770ms ", " 3: 2a03:a100:0:201:1::1 0.865ms ", " 4: e0-1.core1.lju1.he.net 2.091ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.822ms ", " 6: e0-35.core2.bts1.he.net 7.840ms ", " 7: 2001:7f8:35::4:1897:1 16.426ms asymm 11 ", " 8: 2a00:ad00:1000:17::2 16.356ms asymm 9 ", " 9: 2a0c:6300::1 16.689ms reached", " Resume: pmtu 1500 hops 9 back 9 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 30.498027801513672 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 16.489267349243164 } ], "origin_asn": 41897, "origin_asname": "SAT-TRAKT-AS - Sat-Trakt D.O.O., RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:ad00:1000:17::2", "edge_router_ttl": 14, "edge_pings": true, "in_prefix_hops": [ "2a00:ad00:1000:12::1", "2a00:ad00:1000:13::1", "2a00:ad00:1000:14::1", "2a00:ad00:1000:17::2" ], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:06Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a00:ad07:3000::/36", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-SAT-TRAKT-200110217", "org": null, "category": "PA" }, { "prefix": "2a00:ad00::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-SAT-TRAKT-200110217", "org": null, "category": "PA" }, { 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"is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 43191, "holder": "providus-as Providus d.o.o.", "prefixes_v6": [ "2a03:5fe1::/32", "2a03:5fe2::/32", "2a03:5fe0::/32" ], "trace_only": false, "primary_target_ip": "2a03:5fe0:2::55", "target_ip": "2a03:5fe0:2::55", "target_host": "monitor.providus.rs", "target_source": "holder-derived", "targets": [ { "ip": "2a03:5fe0:2::55", "host": "monitor.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.006, "avg": 14.237, "max": 14.675 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.176, "avg": 14.686, "max": 15.702 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { 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"2a03:5fe0::2", "rtts_ms": [ 15.151, 15.191 ], "stars": 0, "raw": "2a03:5fe0::2 15.151 ms 15.191 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::55", "rtts_ms": [ 15.195, 14.479 ], "stars": 0, "raw": "2a03:5fe0:2::55 15.195 ms 14.479 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 1.3, "stdev": 0.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.7, "stdev": 0.0 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.7, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.4, "rtt_best": 7.3, 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"ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.73 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.76 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.224 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.488 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 9.244 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 15.635 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.571 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 15.531 }, { "hop": 10, "ip": "srv68-55.itplatforma.com", "rtt_ms": 14.65 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.440ms ", " 1: fw1-lju.6connect.com 1.018ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.730ms ", " 3: 2a03:a100:0:201:1::1 0.760ms ", " 4: e0-1.core1.lju1.he.net 2.224ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.488ms ", " 6: e0-35.core2.bts1.he.net 9.244ms ", " 7: e0-36.core2.beg1.he.net 15.635ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.571ms ", " 9: sw-thq-ex--mx204 15.531ms ", "10: srv68-55.itplatforma.com 14.650ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 14.474868774414062 }, { "port": 80, "open": true, "rtt_ms": 14.210939407348633 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::56", "host": "mx3.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.114, "avg": 14.178, "max": 14.322 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.306, "avg": 14.313, "max": 14.327 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.369, 0.197 ], "stars": 0, "raw": "2607:fae0:a000::2 0.369 ms 0.197 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.498, 0.356 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.498 ms 0.356 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.513, 0.894 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.513 ms 0.894 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 3.127, 1.973 ], "stars": 0, "raw": "2001:470:1:5be::1 3.127 ms 1.973 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 8.346, 7.529 ], "stars": 0, "raw": "2001:470:0:578::1 8.346 ms 7.529 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.493, 7.653 ], "stars": 0, "raw": "2001:470:0:412::2 7.493 ms 7.653 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 15.504, 15.107 ], "stars": 0, "raw": "2001:470:0:33f::1 15.504 ms 15.107 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 16.662, 14.133 ], "stars": 0, "raw": "2001:470:1:61d::2 16.662 ms 14.133 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 14.751, 14.688 ], "stars": 0, "raw": "2a03:5fe0::2 14.751 ms 14.688 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::56", "rtts_ms": [ 14.45, 14.463 ], "stars": 0, "raw": "2a03:5fe0:2::56 14.450 ms 14.463 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.4, "rtt_worst": 1.2, "stdev": 0.3 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 60.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 60.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.7, "stdev": 0.4 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 8.9, "rtt_best": 7.0, "rtt_worst": 12.3, "stdev": 1.5 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 32.7, "rtt_best": 7.5, "rtt_worst": 241.5, "stdev": 73.4 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 28.6, "rtt_best": 14.8, "rtt_worst": 147.8, "stdev": 41.9 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.3, "rtt_best": 14.1, "rtt_worst": 64.3, "stdev": 18.6 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.1, "rtt_best": 14.7, "rtt_worst": 16.2, "stdev": 0.4 }, { "hop": 10, "ip": "2a03:5fe0:2::56", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.5, "rtt_best": 14.2, "rtt_worst": 14.8, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.04 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.538 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.317 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.117 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.336 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.681 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 14.815 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.476 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 15.062 }, { "hop": 10, "ip": "srv68-56.itplatforma.com", "rtt_ms": 14.489 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.040ms pmtu 1500", " 1: fw1-lju.6connect.com 0.538ms ", " 1: fw1-lju.6connect.com 0.317ms ", " 2: no reply", " 3: no reply", " 4: e0-1.core1.lju1.he.net 2.117ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.336ms ", " 6: e0-35.core2.bts1.he.net 7.681ms ", " 7: e0-36.core2.beg1.he.net 14.815ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.476ms ", " 9: sw-thq-ex--mx204 15.062ms ", "10: srv68-56.itplatforma.com 14.489ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 15.849828720092773 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 14.509201049804688 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::51", "host": "ns.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.274, "avg": 16.323, "max": 20.413 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.535, "avg": 14.558, "max": 14.573 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.336, 0.14 ], "stars": 0, "raw": "2607:fae0:a000::2 0.336 ms 0.140 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.419, 0.352 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.419 ms 0.352 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.492, 0.39 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.492 ms 0.390 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.862, 1.818 ], "stars": 0, "raw": "2001:470:1:5be::1 1.862 ms 1.818 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 8.408, 8.304 ], "stars": 0, "raw": "2001:470:0:578::1 8.408 ms 8.304 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.842, 7.358 ], "stars": 0, "raw": "2001:470:0:412::2 7.842 ms 7.358 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 14.998, 14.763 ], "stars": 0, "raw": "2001:470:0:33f::1 14.998 ms 14.763 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 14.268, 13.992 ], "stars": 0, "raw": "2001:470:1:61d::2 14.268 ms 13.992 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 14.91, 14.541 ], "stars": 0, "raw": "2a03:5fe0::2 14.910 ms 14.541 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::51", "rtts_ms": [ 14.2, 14.189 ], "stars": 0, "raw": "2a03:5fe0:2::51 14.200 ms 14.189 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 1.2, "stdev": 0.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 1.5, "stdev": 0.3 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 0.6, "rtt_worst": 5.0, "stdev": 1.4 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.8, "rtt_best": 1.9, "rtt_worst": 7.4, "stdev": 1.7 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.9, "rtt_best": 7.2, "rtt_worst": 237.8, "stdev": 72.4 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.8, "rtt_best": 7.6, "rtt_worst": 140.7, "stdev": 41.8 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.3, "rtt_best": 14.6, "rtt_worst": 55.1, "stdev": 12.6 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.1, "rtt_best": 14.2, "rtt_worst": 78.0, "stdev": 20.0 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.5, "rtt_best": 14.7, "rtt_worst": 19.6, "stdev": 1.5 }, { "hop": 10, "ip": "2a03:5fe0:2::51", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.1, "rtt_best": 14.4, "rtt_worst": 17.0, "stdev": 1.0 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.477 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.487 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.623 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.785 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.011 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.748 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.474 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 15.54 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.093 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 15.308 }, { "hop": 10, "ip": "srv68-51.itplatforma.com", "rtt_ms": 16.334 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: fw1-lju.6connect.com 0.477ms ", " 1: fw1-lju.6connect.com 0.487ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.623ms ", " 3: 2a03:a100:0:201:1::1 0.785ms ", " 4: e0-1.core1.lju1.he.net 2.011ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.748ms ", " 6: e0-35.core2.bts1.he.net 7.474ms ", " 7: e0-36.core2.beg1.he.net 15.540ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.093ms ", " 9: sw-thq-ex--mx204 15.308ms ", "10: srv68-51.itplatforma.com 16.334ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 14.737844467163086 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 14.41502571105957 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::52", "host": "providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.059, "avg": 14.286, "max": 14.541 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.147, "avg": 14.251, "max": 14.35 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.299, 0.165 ], "stars": 0, "raw": "2607:fae0:a000::2 0.299 ms 0.165 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.476, 0.411 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.476 ms 0.411 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.489, 0.722 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.489 ms 0.722 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.841, 1.75 ], "stars": 0, "raw": "2001:470:1:5be::1 1.841 ms 1.750 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 9.02, 8.154 ], "stars": 0, "raw": "2001:470:0:578::1 9.020 ms 8.154 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 12.093, 7.559 ], "stars": 0, "raw": "2001:470:0:412::2 12.093 ms 7.559 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 14.965, 14.797 ], "stars": 0, "raw": "2001:470:0:33f::1 14.965 ms 14.797 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 14.288, 14.212 ], "stars": 0, "raw": "2001:470:1:61d::2 14.288 ms 14.212 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 14.588, 14.637 ], "stars": 0, "raw": "2a03:5fe0::2 14.588 ms 14.637 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::52", "rtts_ms": [ 14.364, 14.471 ], "stars": 0, "raw": "2a03:5fe0:2::52 14.364 ms 14.471 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 0.3, "rtt_worst": 4.4, "stdev": 1.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.4, "stdev": 0.2 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 3.7, "stdev": 0.6 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.2, "rtt_best": 6.8, "rtt_worst": 9.5, "stdev": 0.9 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.9, "rtt_best": 7.5, "rtt_worst": 8.5, "stdev": 0.3 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.0, "rtt_best": 14.7, "rtt_worst": 15.3, "stdev": 0.2 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.4, "rtt_best": 14.2, "rtt_worst": 14.9, "stdev": 0.2 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.0, "rtt_best": 14.7, "rtt_worst": 15.7, "stdev": 0.3 }, { "hop": 10, "ip": "2a03:5fe0:2::52", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.5, "rtt_best": 14.3, "rtt_worst": 15.3, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.443 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.362 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.755 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.655 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.097 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.819 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.735 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 14.675 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.822 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 15.111 }, { "hop": 10, "ip": "srv68-52.itplatforma.com", "rtt_ms": 14.348 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: fw1-lju.6connect.com 0.443ms ", " 1: fw1-lju.6connect.com 0.362ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.755ms ", " 3: 2a03:a100:0:201:1::1 0.655ms ", " 4: e0-1.core1.lju1.he.net 2.097ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.819ms ", " 6: e0-35.core2.bts1.he.net 7.735ms ", " 7: e0-36.core2.beg1.he.net 14.675ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.822ms ", " 9: sw-thq-ex--mx204 15.111ms ", "10: srv68-52.itplatforma.com 14.348ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 14.4195556640625 }, { "port": 80, "open": true, "rtt_ms": 14.16015625 } ], "classification": "open" }, { "ip": "2a03:5fe0:2::46", "host": "support.providus.rs", "source": "holder-derived", "prefix": "2a03:5fe0::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.245, "avg": 14.334, "max": 14.491 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.401, "avg": 14.431, "max": 14.473 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.312, 0.166 ], "stars": 0, "raw": "2607:fae0:a000::2 0.312 ms 0.166 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.461, 0.409 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.461 ms 0.409 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.519, 0.412 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.519 ms 0.412 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.961, 1.766 ], "stars": 0, "raw": "2001:470:1:5be::1 1.961 ms 1.766 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 8.074, 8.186 ], "stars": 0, "raw": "2001:470:0:578::1 8.074 ms 8.186 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.365, 7.584 ], "stars": 0, "raw": "2001:470:0:412::2 7.365 ms 7.584 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 14.964, 14.449 ], "stars": 0, "raw": "2001:470:0:33f::1 14.964 ms 14.449 ms" }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 14.274, 14.095 ], "stars": 0, "raw": "2001:470:1:61d::2 14.274 ms 14.095 ms" }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 14.56, 14.566 ], "stars": 0, "raw": "2a03:5fe0::2 14.560 ms 14.566 ms" }, { "hop": 10, "ip": "2a03:5fe0:2::46", "rtts_ms": [ 14.355, 14.177 ], "stars": 0, "raw": "2a03:5fe0:2::46 14.355 ms 14.177 ms" } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.4, "rtt_worst": 2.2, "stdev": 0.6 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 20.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.7, "rtt_worst": 2.2, "stdev": 0.2 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.2, "rtt_best": 7.1, "rtt_worst": 9.7, "stdev": 0.7 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.1, "rtt_best": 7.7, "rtt_worst": 10.0, "stdev": 0.7 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.2, "rtt_best": 14.8, "rtt_worst": 15.6, "stdev": 0.2 }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 16.6, "rtt_best": 14.2, "rtt_worst": 24.9, "stdev": 4.4 }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.2, "rtt_best": 14.8, "rtt_worst": 16.8, "stdev": 0.6 }, { "hop": 10, "ip": "2a03:5fe0:2::46", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.5, "rtt_best": 14.3, "rtt_worst": 14.7, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.035 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.97 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.304 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.672 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.619 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.963 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.431 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.902 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 15.07 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.21 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 14.952 }, { "hop": 10, "ip": "support-thq1.itplatforma.com", "rtt_ms": 14.319 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.035ms pmtu 1500", " 1: fw1-lju.6connect.com 0.970ms ", " 1: fw1-lju.6connect.com 0.304ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.672ms ", " 3: 2a03:a100:0:201:1::1 0.619ms ", " 4: e0-1.core1.lju1.he.net 1.963ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.431ms ", " 6: e0-35.core2.bts1.he.net 7.902ms ", " 7: e0-36.core2.beg1.he.net 15.070ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.210ms ", " 9: sw-thq-ex--mx204 14.952ms ", "10: support-thq1.itplatforma.com 14.319ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 14.54472541809082 }, { "port": 80, "open": true, "rtt_ms": 14.32657241821289 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.006, "avg": 14.237, "max": 14.675 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.176, "avg": 14.686, "max": 15.702 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.226, 0.368 ], "stars": 0, "raw": "2607:fae0:a000::2 0.226 ms 0.368 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.556 ], "stars": 1, "raw": "* 2607:fae0:a000:2::2 0.556 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 80.0, "mtr_loss_path_mismatch": true }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.933, 1.755 ], "stars": 0, "raw": "2001:470:1:5be::1 1.933 ms 1.755 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.403, 6.06 ], "stars": 0, "raw": "2001:470:0:578::1 7.403 ms 6.060 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.569, 7.581 ], "stars": 0, "raw": "2001:470:0:412::2 7.569 ms 7.581 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 15.079, 17.88 ], "stars": 0, "raw": "2001:470:0:33f::1 15.079 ms 17.880 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:470:1:61d::2", "rtts_ms": [ 17.854, 14.801 ], "stars": 0, "raw": "2001:470:1:61d::2 17.854 ms 14.801 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": "2a03:5fe0::2", "rtts_ms": [ 15.151, 15.191 ], "stars": 0, "raw": "2a03:5fe0::2 15.151 ms 15.191 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2a03:5fe0:2::55", "rtts_ms": [ 15.195, 14.479 ], "stars": 0, "raw": "2a03:5fe0:2::55 15.195 ms 14.479 ms", "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 10, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 1.3, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.7, "rtt_worst": 0.7, "stdev": 0.0, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 90.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 80.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 0.8, "stdev": 0.1, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.7, "rtt_worst": 2.6, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.4, "rtt_best": 7.3, "rtt_worst": 10.0, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.8, "rtt_best": 7.5, "rtt_worst": 8.3, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 44.8, "rtt_best": 14.8, "rtt_worst": 312.0, "stdev": 93.9, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 8, "ip": "2001:470:1:61d::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 43.8, "rtt_best": 14.1, "rtt_worst": 225.5, "stdev": 66.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net" }, { "hop": 9, "ip": "2a03:5fe0::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 26.4, "rtt_best": 14.9, "rtt_worst": 126.0, "stdev": 35.0, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "sw-thq-ex--mx204" }, { "hop": 10, "ip": "2a03:5fe0:2::55", "loss_pct": 0.0, "sent": 10, "rtt_avg": 16.3, "rtt_best": 14.1, "rtt_worst": 32.1, "stdev": 5.6, "asn": 43191, "asname": "providus-as - Providus d.o.o., RS", "ptr": "srv68-55.itplatforma.com" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.038 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.44 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 1.018 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.73 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.76 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.224 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.488 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 9.244 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 15.635 }, { "hop": 8, "ip": "providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net", "rtt_ms": 14.571 }, { "hop": 9, "ip": "sw-thq-ex--mx204", "rtt_ms": 15.531 }, { "hop": 10, "ip": "srv68-55.itplatforma.com", "rtt_ms": 14.65 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.038ms pmtu 1500", " 1: fw1-lju.6connect.com 0.440ms ", " 1: fw1-lju.6connect.com 1.018ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.730ms ", " 3: 2a03:a100:0:201:1::1 0.760ms ", " 4: e0-1.core1.lju1.he.net 2.224ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.488ms ", " 6: e0-35.core2.bts1.he.net 9.244ms ", " 7: e0-36.core2.beg1.he.net 15.635ms ", " 8: providus-d-o-o.10gigabitethernet1-1-4.switch1.beg1.he.net 14.571ms ", " 9: sw-thq-ex--mx204 15.531ms ", "10: srv68-55.itplatforma.com 14.650ms reached", " Resume: pmtu 1500 hops 10 back 10 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 14.474868774414062 }, { "port": 80, "open": true, "rtt_ms": 14.210939407348633 } ], "origin_asn": 43191, "origin_asname": "providus-as - Providus d.o.o., RS", "rate_limited_hops": [ 3, 4, 5 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:470:0:33f::1", "edge_router_ttl": 10, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:52Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 2856, "size_after": 3624 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "size_before": 536, "size_after": null } ], "matrix": { "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "http": { "result": "inconclusive", "reason": "natural max segment 536B already <= 1220B; nothing to shrink", "port": 80, "max_before": 536 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 2856, "max_after": 3624 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a03:5fe1::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-ZP", "org": null, "category": "unknown" }, { "prefix": "2a03:5fe0::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-THQ", "org": null, "category": "unknown" }, { "prefix": "185.80.69.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-69", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "2a03:5fe2::/32", "family": "v6", "status": "ASSIGNED", "netname": "NET-TKC", "org": null, "category": "unknown" }, { "prefix": "185.80.71.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-71", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-118", "org": null, "category": "PA" }, { "prefix": "79.170.119.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-119", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" }, { "prefix": "185.80.70.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-70", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "79.170.118.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20070927", "org": null, "category": "PA" }, { "prefix": "185.80.68.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "INFRA-68", "org": "Providus Managed Cloud Services", "category": "PA" }, { "prefix": "185.80.68.0/23", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-PROVIDUS-20141205", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a03:5fe0::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe1::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a03:5fe2::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 43191, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 44143, "holder": "A1SERBIA-AS A1 Srbija d.o.o. Beograd", "prefixes_v6": [ "2a00:61c0::/29", "2a00:61c0::/32", "2a00:61c1::/32" ], "trace_only": false, "primary_target_ip": "2a00:61c0::1", "target_ip": "2a00:61c0::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a00:61c0::1", "host": "(probe)", "source": "probe", "prefix": "2a00:61c0::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 53.567, "avg": 53.57, "max": 53.575 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 53.597, "avg": 53.722, "max": 53.827 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.206, 0.226 ], "stars": 0, "raw": "2607:fae0:a000::2 0.206 ms 0.226 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 2.064 ], "stars": 1, "raw": "2a00:ee1:800:9::1 2.064 ms *" }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.976, 0.915 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.976 ms 0.915 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": "2a00:61c0::1", "rtts_ms": [ 56.799, 55.062 ], "stars": 0, "raw": "2a00:61c0::1 56.799 ms 55.062 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.4, "rtt_worst": 4.5, "stdev": 1.3 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.9, "rtt_worst": 2.4, "stdev": 0.1 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 0.9, "rtt_worst": 1.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:7f8::20ff:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.1, "rtt_best": 15.0, "rtt_worst": 15.3, "stdev": 0.1 }, { "hop": 6, "ip": "2001:850:1:103::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.7, "rtt_best": 14.4, "rtt_worst": 14.8, "stdev": 0.1 }, { "hop": 7, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.9, "rtt_best": 15.6, "rtt_worst": 16.4, "stdev": 0.3 }, { "hop": 8, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 79.7, "rtt_best": 53.7, "rtt_worst": 312.6, "stdev": 81.8 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.479 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.632 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.657 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.9 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.106 }, { "hop": 8, "ip": "2a00:61c0::1", "rtt_ms": 56.105 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 0.479ms ", " 1: fw1-lju.6connect.com 0.632ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.657ms ", " 3: 2a00:ee1:800:9::1 1.900ms ", " 4: 2a00:ee0:1:10::2 1.106ms asymm 3 ", " 5: no reply", " 6: no reply", " 7: no reply", " 8: 2a00:61c0::1 56.105ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 53.567, "avg": 53.57, "max": 53.575 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 53.597, "avg": 53.722, "max": 53.827 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.206, 0.226 ], "stars": 0, "raw": "2607:fae0:a000::2 0.206 ms 0.226 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 2.064 ], "stars": 1, "raw": "2a00:ee1:800:9::1 2.064 ms *", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.976, 0.915 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.976 ms 0.915 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 6, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": "2a00:61c0::1", "rtts_ms": [ 56.799, 55.062 ], "stars": 0, "raw": "2a00:61c0::1 56.799 ms 55.062 ms", "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.4, "rtt_worst": 4.5, "stdev": 1.3, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.9, "rtt_worst": 2.4, "stdev": 0.1, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 0.9, "rtt_worst": 1.4, "stdev": 0.1, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2001:7f8::20ff:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.1, "rtt_best": 15.0, "rtt_worst": 15.3, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": "ipv6.de-cix.fra.de.as8447.a1.net" }, { "hop": 6, "ip": "2001:850:1:103::", "loss_pct": 0.0, "sent": 10, "rtt_avg": 14.7, "rtt_best": 14.4, "rtt_worst": 14.8, "stdev": 0.1, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 7, "ip": "2001:850:1:137::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.9, "rtt_best": 15.6, "rtt_worst": 16.4, "stdev": 0.3, "asn": 8447, "asname": "A1TELEKOM-AT - A1 Telekom Austria AG, AT", "ptr": null }, { "hop": 8, "ip": "2a00:61c0::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 79.7, "rtt_best": 53.7, "rtt_worst": 312.6, "stdev": 81.8, "asn": 44143, "asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.479 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.632 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.657 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.9 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.106 }, { "hop": 8, "ip": "2a00:61c0::1", "rtt_ms": 56.105 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 0.479ms ", " 1: fw1-lju.6connect.com 0.632ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.657ms ", " 3: 2a00:ee1:800:9::1 1.900ms ", " 4: 2a00:ee0:1:10::2 1.106ms asymm 3 ", " 5: no reply", " 6: no reply", " 7: no reply", " 8: 2a00:61c0::1 56.105ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 44143, "origin_asname": "A1SERBIA-AS - A1SERBIA-AS, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a00:61c0:8000:1000::1", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [ "2a00:61c0:8000:1000::1" ], "probed_count": 30 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 7, "last_te_ip": "2001:850:1:137::1", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a00:ee1:800:9::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2a00:ee0:1:10::2" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:7f8::20ff:0:1" }, { "ttl": 6, "result": "time_exceeded", "from": "2001:850:1:103::" }, { "ttl": 7, "result": "time_exceeded", "from": "2001:850:1:137::1" }, { "ttl": 8, "result": "echo_reply", "from": "2a00:61c0::1" }, { "ttl": 9, "result": "echo_reply", "from": "2a00:61c0::1" }, { "ttl": 10, "result": "echo_reply", "from": "2a00:61c0::1" }, { "ttl": 11, "result": "echo_reply", "from": "2a00:61c0::1" }, { "ttl": 12, "result": "echo_reply", "from": "2a00:61c0::1" } ], "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:32Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "2a00:61c0::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "188.120.96.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "2a00:61c0::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "2a00:61c1::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-NOVIOP-20111221", "org": null, "category": "PA" }, { "prefix": "188.120.112.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "188.120.96.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "37.19.104.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20111223", "org": null, "category": "PA" }, { "prefix": "188.120.104.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "95.86.48.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "95.86.8.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "188.120.116.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" }, { "prefix": "185.37.24.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20131008", "org": null, "category": "PA" }, { "prefix": "95.86.4.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "77.243.16.0/20", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20070306", "org": null, "category": "PA" }, { "prefix": "198.143.176.0/21", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20120516", "org": null, "category": "PA" }, { "prefix": "95.86.60.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20081231", "org": null, "category": "PA" }, { "prefix": "188.120.112.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-NOVIOP-20090427", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a00:61c0::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a00:61c0::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 32, "maxLength": 32, "ta": "ripe" }, { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a00:61c1::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 44143, "prefix_len": 32, "maxLength": 32, "ta": "ripe" }, { "asn": 44143, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 44143, "name": "A1 Srbija d.o.o.", "url": "https://a1.rs", "peering_policy": "Open", "member_type": "peering", "since": "2026-03-09T09:36:44Z", "ipv6": "2001:7f8:1e::34" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 44143, "name": "A1 Srbija d.o.o.", "url": "https://a1.rs", "peering_policy": "Open", "member_type": "peering", "since": "2026-03-09T09:36:44Z", "ipv6": "2001:7f8:1e::34" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 47267, "holder": "RNIDS-AS Serbian National Internet Domain Registry Foundation", "prefixes_v6": [ "2a0f:eb80::/44", "2a0f:eb80::/48", "2a0f:eb80::/32", "2001:67c:69c::/48", "2a0f:eb80:1::/48" ], "trace_only": false, "primary_target_ip": "2001:67c:69c::59", "target_ip": "2001:67c:69c::59", "target_host": "ns1.rnids.rs", "target_source": "dns-ns", "targets": [ { "ip": "2001:67c:69c::59", "host": "ns1.rnids.rs", "source": "dns-ns", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.248, "avg": 14.398, "max": 14.537 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.358, "avg": 14.463, "max": 14.601 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.499, 0.175 ], "stars": 0, "raw": "2607:fae0:a000::2 0.499 ms 0.175 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.502 ], "stars": 1, "raw": "2607:fae0:a000:2::2 0.502 ms *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.945 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.945 ms *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.081, 1.876 ], "stars": 0, "raw": "2001:470:1:5be::1 2.081 ms 1.876 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.661, 8.069 ], "stars": 0, "raw": "2001:470:0:578::1 7.661 ms 8.069 ms" }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.784, 7.986 ], "stars": 0, "raw": "2001:470:0:412::2 7.784 ms 7.986 ms" }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 14.793, 14.676 ], "stars": 0, "raw": "2001:470:0:33f::1 14.793 ms 14.676 ms" }, { "hop": 8, "ip": "2001:7f8:1e::27", "rtts_ms": [ 19.008, 14.366 ], "stars": 0, "raw": "2001:7f8:1e::27 19.008 ms 14.366 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, 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"11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2001:67c:69c::53", "host": "ns4.rnids.rs", "source": "holder-derived", "prefix": "2001:67c:69c::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.33, "avg": 14.496, "max": 14.643 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.376, "avg": 14.688, "max": 15.231 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": 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26.525 ms 14.297 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 0.5, "rtt_worst": 3.8, "stdev": 1.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.5, "rtt_worst": 2.8, "stdev": 0.7 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 0.6, "rtt_worst": 10.6, "stdev": 3.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.6, "rtt_worst": 3.6, "stdev": 0.6 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 9.1, "rtt_best": 6.5, "rtt_worst": 15.6, "stdev": 2.5 }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.8, "rtt_best": 7.4, "rtt_worst": 13.3, "stdev": 1.7 }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.5, "rtt_best": 14.9, "rtt_worst": 16.8, "stdev": 0.7 }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.2, "rtt_best": 14.5, "rtt_worst": 17.7, "stdev": 1.3 }, { "hop": 9, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 80.0, "sent": 10, "rtt_avg": 14.2, "rtt_best": 14.2, "rtt_worst": 14.2, "stdev": 0.0 }, { "hop": 10, "ip": "2001:67c:69c::53", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.5, "rtt_best": 14.4, "rtt_worst": 18.8, "stdev": 1.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 6.274 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 2.053 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 1.242 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 1.089 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.562 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.529 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 7.776 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 15.988 }, { "hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 14.375 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 6.274ms ", " 1: fw1-lju.6connect.com 2.053ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 1.242ms ", " 3: 2a03:a100:0:201:1::1 1.089ms ", " 4: e0-1.core1.lju1.he.net 2.562ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.529ms ", " 6: e0-35.core2.bts1.he.net 7.776ms ", " 7: e0-36.core2.beg1.he.net 15.988ms ", " 8: rnids.sox.rs 14.375ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 14.248, "avg": 14.398, "max": 14.537 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 14.358, "avg": 14.463, "max": 14.601 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.499, 0.175 ], "stars": 0, "raw": "2607:fae0:a000::2 0.499 ms 0.175 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.502 ], "stars": 1, "raw": "2607:fae0:a000:2::2 0.502 ms *", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.945 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.945 ms *", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null, "mtr_loss_pct": 40.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.081, 1.876 ], "stars": 0, "raw": "2001:470:1:5be::1 2.081 ms 1.876 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.661, 8.069 ], "stars": 0, "raw": "2001:470:0:578::1 7.661 ms 8.069 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 30.0 }, { "hop": 6, "ip": "2001:470:0:412::2", "rtts_ms": [ 7.784, 7.986 ], "stars": 0, "raw": "2001:470:0:412::2 7.784 ms 7.986 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:0:33f::1", "rtts_ms": [ 14.793, 14.676 ], "stars": 0, "raw": "2001:470:0:33f::1 14.793 ms 14.676 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:7f8:1e::27", "rtts_ms": [ 19.008, 14.366 ], "stars": 0, "raw": "2001:7f8:1e::27 19.008 ms 14.366 ms", "asn": 13004, "asname": "Serbian Open eXchange", "ptr": "rnids.sox.rs", "ixp": "sox", "ixp_member_asn": 13004, "ixp_member_name": "Serbian Open eXchange", "six": true, "six_member_asn": 13004, "six_member_name": "Serbian Open eXchange", "mtr_loss_pct": 0.0 }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 90.0, "mtr_loss_path_mismatch": true }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 8, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.4, "rtt_worst": 2.3, "stdev": 0.6, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.3, "rtt_best": 0.7, "rtt_worst": 2.5, "stdev": 1.0, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 40.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.9, "rtt_worst": 2.6, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 8.2, "rtt_best": 6.8, "rtt_worst": 9.1, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:412::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.8, "rtt_best": 7.5, "rtt_worst": 8.2, "stdev": 0.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-35.core2.bts1.he.net" }, { "hop": 7, "ip": "2001:470:0:33f::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 15.2, "rtt_best": 14.8, "rtt_worst": 15.8, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.beg1.he.net" }, { "hop": 8, "ip": "2001:7f8:1e::27", "loss_pct": 0.0, "sent": 10, "rtt_avg": 48.3, "rtt_best": 14.3, "rtt_worst": 264.7, "stdev": 80.8, "asn": 13004, "asname": "SOX - Serbian Open Exchange DOO, RS", "ptr": "rnids.sox.rs" }, { "hop": 9, "ip": "2a0f:eb80:400:0:91:199:17:244", "loss_pct": 90.0, "sent": 10, "rtt_avg": 14.4, "rtt_best": 14.4, "rtt_worst": 14.4, "stdev": 0.0, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": null }, { "hop": 10, "ip": "2001:67c:69c::59", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.6, "rtt_best": 14.4, "rtt_worst": 64.7, "stdev": 15.8, "asn": 47267, "asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "ptr": "a.nic.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.03 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 1.326 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.402 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.771 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.671 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.285 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.023 }, { "hop": 6, "ip": "e0-35.core2.bts1.he.net", "rtt_ms": 13.406 }, { "hop": 7, "ip": "e0-36.core2.beg1.he.net", "rtt_ms": 16.029 }, { "hop": 8, "ip": "rnids.sox.rs", "rtt_ms": 14.573 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.030ms pmtu 1500", " 1: fw1-lju.6connect.com 1.326ms ", " 1: fw1-lju.6connect.com 0.402ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.771ms ", " 3: 2a03:a100:0:201:1::1 0.671ms ", " 4: e0-1.core1.lju1.he.net 2.285ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.023ms ", " 6: e0-35.core2.bts1.he.net 13.406ms ", " 7: e0-36.core2.beg1.he.net 16.029ms ", " 8: rnids.sox.rs 14.573ms ", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 47267, "origin_asname": "RNIDS-AS - Serbian National Internet Domain Registry Foundation, RS", "rate_limited_hops": [ 3, 5, 9 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a0f:eb80:400:0:91:199:17:244", "edge_router_ttl": 13, "edge_pings": true, "in_prefix_hops": [ "2a0f:eb80:400:0:91:199:17:244" ], "probed_count": 30 }, "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:24Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "size_before": 133, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "max_before": 133 }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "2001:67c:69c::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "RNIDS-IPv6-Net", "org": null, "category": "PI" }, { "prefix": "2a0f:eb80::/44", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "Services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/32", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RNIDS_services", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80:1::/48", "family": "v6", "status": "ASSIGNED", "netname": "R-anycast", "org": null, "category": "unknown" }, { "prefix": "185.182.160.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.162.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "2a0f:eb80::/48", "family": "v6", "status": "ASSIGNED", "netname": "Services", "org": null, "category": "unknown" }, { "prefix": "185.182.161.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ANYCAST", "org": null, "category": "PA" }, { "prefix": "185.182.163.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "185.182.160.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-RNIDS-20161216", "org": null, "category": "PA" }, { "prefix": "91.199.17.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "RNIDS-Net", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 5, "invalid": 0, "not_found": 0, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2001:67c:69c::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] }, { "prefix": "2a0f:eb80::/44", 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(correct origin, length within maxLength)", "covering_vrps": [ { "asn": 47267, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": true }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 49167, "holder": "COMUTEL-AS COMUTEL d.o.o.", "prefixes_v6": [ "2001:67c:2210::/48" ], "trace_only": false, "primary_target_ip": "2001:67c:2210::1", "target_ip": "2001:67c:2210::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2001:67c:2210::1", "host": "(probe)", "source": "probe", "prefix": "2001:67c:2210::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.738, "avg": 49.887, "max": 50.088 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.283, 0.258 ], "stars": 0, "raw": "2607:fae0:a000::2 0.283 ms 0.258 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.58 ], "stars": 1, "raw": "* 2a03:a100:0:201:1::1 0.580 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.419 ], "stars": 1, "raw": "* 2001:470:1:5be::1 2.419 ms" }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 18.959, 19.41 ], "stars": 0, "raw": "2001:470:0:7ef::1 18.959 ms 19.410 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2001:470:0:52e::2", "rtts_ms": [ 21.622, 20.987 ], "stars": 0, "raw": "2001:470:0:52e::2 21.622 ms 20.987 ms" }, { "hop": 10, "ip": "2001:470:0:3b2::2", "rtts_ms": [ 20.352, 20.449 ], "stars": 0, "raw": "2001:470:0:3b2::2 20.352 ms 20.449 ms" }, { "hop": 11, "ip": "2001:470:12:10::2", "rtts_ms": [ 51.356, 49.747 ], "stars": 0, "raw": "2001:470:12:10::2 51.356 ms 49.747 ms" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 0.9, "stdev": 0.2 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.6, "rtt_worst": 0.6, "stdev": 0.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 3.2, "stdev": 0.4 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 26.9, "rtt_best": 7.5, "rtt_worst": 152.2, "stdev": 50.7 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.0, "rtt_best": 17.8, "rtt_worst": 20.2, "stdev": 0.8 }, { "hop": 9, "ip": "2001:470:0:52e::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.5, "rtt_best": 21.1, "rtt_worst": 22.2, "stdev": 0.3 }, { "hop": 10, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.6, "rtt_best": 20.2, "rtt_worst": 21.7, "stdev": 0.5 }, { "hop": 11, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.2, "rtt_best": 50.0, "rtt_worst": 50.4, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1500, 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.578 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.361 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.557 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.563 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.136 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.001 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.74 }, { "hop": 9, "ip": "e0-36.core2.dus1.he.net", "rtt_ms": 21.625 }, { "hop": 10, "ip": "tserv2.dus1.he.net", "rtt_ms": 21.132 }, { "hop": 11, "ip": "tserv2.dus1.he.net", "rtt_ms": 20.437 }, { "hop": 11, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 50.841 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 0.578ms ", " 1: fw1-lju.6connect.com 0.361ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.557ms ", " 3: 2a03:a100:0:201:1::1 0.563ms ", " 4: e0-1.core1.lju1.he.net 2.136ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.001ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.740ms asymm 7 ", " 7: no reply", " 8: no reply", " 9: e0-36.core2.dus1.he.net 21.625ms ", "10: tserv2.dus1.he.net 21.132ms asymm 11 ", "11: tserv2.dus1.he.net 20.437ms pmtu 1480", "11: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 50.841ms reached", " Resume: pmtu 1480 hops 11 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 49.74699020385742 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 50.77028274536133 } ], "classification": "echo_only" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 49.738, "avg": 49.887, "max": 50.088 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 0, "loss_pct": 100, "rtt_ms": null, "size_bytes": 1452, "df": true, "ok": false }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.283, 0.258 ], "stars": 0, "raw": "2607:fae0:a000::2 0.283 ms 0.258 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.58 ], "stars": 1, "raw": "* 2a03:a100:0:201:1::1 0.580 ms", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null, "mtr_loss_pct": 90.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 2.419 ], "stars": 1, "raw": "* 2001:470:1:5be::1 2.419 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 20.0 }, { "hop": 5, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 20.0, "mtr_loss_path_mismatch": true }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 18.959, 19.41 ], "stars": 0, "raw": "2001:470:0:7ef::1 18.959 ms 19.410 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-19.core2.fra2.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": "2001:470:0:52e::2", "rtts_ms": [ 21.622, 20.987 ], "stars": 0, "raw": "2001:470:0:52e::2 21.622 ms 20.987 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.dus1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 10, "ip": "2001:470:0:3b2::2", "rtts_ms": [ 20.352, 20.449 ], "stars": 0, "raw": "2001:470:0:3b2::2 20.352 ms 20.449 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tserv2.dus1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 11, "ip": "2001:470:12:10::2", "rtts_ms": [ 51.356, 49.747 ], "stars": 0, "raw": "2001:470:12:10::2 51.356 ms 49.747 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 0.9, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 90.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.6, "rtt_worst": 0.6, "stdev": 0.0, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 1.9, "rtt_worst": 3.2, "stdev": 0.4, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 20.0, "sent": 10, "rtt_avg": 26.9, "rtt_best": 7.5, "rtt_worst": 152.2, "stdev": 50.7, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.0, "rtt_best": 17.8, "rtt_worst": 20.2, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-19.core2.fra2.he.net" }, { "hop": 9, "ip": "2001:470:0:52e::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.5, "rtt_best": 21.1, "rtt_worst": 22.2, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-36.core2.dus1.he.net" }, { "hop": 10, "ip": "2001:470:0:3b2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 20.6, "rtt_best": 20.2, "rtt_worst": 21.7, "stdev": 0.5, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "tserv2.dus1.he.net" }, { "hop": 11, "ip": "2001:67c:2210::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 50.2, "rtt_best": 50.0, "rtt_worst": 50.4, "stdev": 0.1, "asn": 49167, "asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1480, "pmtu_changes": [ 1500, 1480, 1480 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.578 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.361 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.557 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.563 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.136 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 9.001 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.74 }, { "hop": 9, "ip": "e0-36.core2.dus1.he.net", "rtt_ms": 21.625 }, { "hop": 10, "ip": "tserv2.dus1.he.net", "rtt_ms": 21.132 }, { "hop": 11, "ip": "tserv2.dus1.he.net", "rtt_ms": 20.437 }, { "hop": 11, "ip": "tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net", "rtt_ms": 50.841 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 0.578ms ", " 1: fw1-lju.6connect.com 0.361ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.557ms ", " 3: 2a03:a100:0:201:1::1 0.563ms ", " 4: e0-1.core1.lju1.he.net 2.136ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 9.001ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.740ms asymm 7 ", " 7: no reply", " 8: no reply", " 9: e0-36.core2.dus1.he.net 21.625ms ", "10: tserv2.dus1.he.net 21.132ms asymm 11 ", "11: tserv2.dus1.he.net 20.437ms pmtu 1480", "11: tunnel110879-pt.tunnel.tserv18.dus1.ipv6.he.net 50.841ms reached", " Resume: pmtu 1480 hops 11 back 12 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 49.74699020385742 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 50.77028274536133 } ], "origin_asn": 49167, "origin_asname": "COMUTEL-AS - COMUTEL d.o.o., RS", "rate_limited_hops": [ 3, 4, 5 ], "classification": "echo_only", "yarrp_blackhole": { "edge_router_ip": "2001:470:12:10::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": 15, "last_ptb_ip": "2001:470:0:3b2::2", "last_ptb_mtu": 1480, "last_te_ttl": 10, "last_te_ip": "2001:470:0:3b2::2", "reached_target": false, "verdict": "pmtud_partial", "explanation": "PMTUD worked at least as deep as hop 14: that router (2001:470:0:3b2::2) returned an ICMPv6 Packet-Too-Big with MTU=1480. The MTU constraint blocking 1500-byte traffic to the target is at or past that hop.", "break_after_ip": "2001:470:0:3b2::2", "break_after_ttl": 14 }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a03:a100:0:201:1::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2001:470:1:5be::1" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:470:0:578::1" }, { "ttl": 6, "result": "time_exceeded", "from": "2001:470:0:7ef::1" }, { "ttl": 7, "result": "no_response" }, { "ttl": 8, "result": "no_response" }, { "ttl": 9, "result": "time_exceeded", "from": "2001:470:0:52e::2" }, { "ttl": 10, "result": "time_exceeded", "from": "2001:470:0:3b2::2" }, { "ttl": 11, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 12, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 13, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 14, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 }, { "ttl": 15, "result": "ptb", "from": "2001:470:0:3b2::2", "mtu": 1480 } ], "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1360, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1400-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1200)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:27Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1360, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1360, "probe_size": 1400, "ptb_mtu": 1200, "fragments_after": 2, "evidence": "destination fragmented its 1400-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1200)" } } }, "address_space": { "type": "PI", "prefixes": [ { "prefix": "2001:67c:2210::/48", "family": "v6", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.217.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "195.88.216.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL-NET", "org": null, "category": "PI" }, { "prefix": "91.212.69.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "COMUTEL", "org": "Omladinskih brigada 88b", "category": "PI" } ] }, "rpki": { "summary": { "valid": 0, "invalid": 0, "not_found": 1, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2001:67c:2210::/48", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "past AS6939 (HURRICANE)", "pmtu_min": 1480 }, { "vantage": "odin", "asn": 56843, "holder": "CNT-ISP-AS Centar Novih Tehnologija DOO", "prefixes_v6": [ "2a02:2951::/32" ], "trace_only": false, "primary_target_ip": "2a02:2951::1", "target_ip": "2a02:2951::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a02:2951::1", "host": "(probe)", "source": "probe", "prefix": "2a02:2951::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.476, "avg": 36.596, "max": 36.845 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 36.945, "avg": 37.543, "max": 38.727 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.243, 0.186 ], "stars": 0, "raw": "2607:fae0:a000::2 0.243 ms 0.186 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.978, 2.648 ], "stars": 0, "raw": "2a00:ee1:800:9::1 1.978 ms 2.648 ms" }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtts_ms": [ 0.999, 0.846 ], "stars": 0, "raw": "2a00:ee0:1:10::2 0.999 ms 0.846 ms" }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "rtts_ms": [ 32.952, 33.057 ], "stars": 0, "raw": "2001:7f8::23a5:0:1 32.952 ms 33.057 ms" }, { "hop": 6, "ip": "2a02:b58:1:15::2", "rtts_ms": [ 33.061, 32.83 ], "stars": 0, "raw": "2a02:b58:1:15::2 33.061 ms 32.830 ms" }, { "hop": 7, "ip": "2a02:660:1:1::12", "rtts_ms": [ 36.56, 36.458 ], "stars": 0, "raw": "2a02:660:1:1::12 36.560 ms 36.458 ms" }, { "hop": 8, "ip": "2a02:2951::1", "rtts_ms": [ 36.585, 36.602 ], "stars": 0, "raw": "2a02:2951::1 36.585 ms 36.602 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 1.1, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 3.6, "stdev": 0.5 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.3, "rtt_best": 1.0, "rtt_worst": 1.9, "stdev": 0.3 }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 47.7, "rtt_best": 33.3, "rtt_worst": 66.3, "stdev": 16.9 }, { "hop": 6, "ip": "2a02:b58:1:15::2", "loss_pct": 60.0, "sent": 10, "rtt_avg": 108.1, "rtt_best": 32.9, "rtt_worst": 333.0, "stdev": 149.9 }, { "hop": 9, "ip": "2a02:2951::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.1, "rtt_best": 36.5, "rtt_worst": 40.0, "stdev": 1.0 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.035 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.908 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.451 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 2.007 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.099 }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "rtt_ms": 33.43 }, { "hop": 6, "ip": "???", "rtt_ms": 33.129 }, { "hop": 7, "ip": "???", "rtt_ms": 37.224 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.035ms pmtu 1500", " 1: fw1-lju.6connect.com 0.908ms ", " 1: fw1-lju.6connect.com 0.451ms ", " 2: no reply", " 3: 2a00:ee1:800:9::1 2.007ms ", " 4: 2a00:ee0:1:10::2 1.099ms asymm 3 ", " 5: 2001:7f8::23a5:0:1 33.430ms asymm 9 ", " 6: ??? 33.129ms asymm 11 ", " 7: ??? 37.224ms asymm 11 ", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 36.476, "avg": 36.596, "max": 36.845 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 36.945, "avg": 37.543, "max": 38.727 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.243, 0.186 ], "stars": 0, "raw": "2607:fae0:a000::2 0.243 ms 0.186 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.978, 2.648 ], "stars": 0, "raw": "2a00:ee1:800:9::1 1.978 ms 2.648 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtts_ms": [ 0.999, 0.846 ], "stars": 0, "raw": "2a00:ee0:1:10::2 0.999 ms 0.846 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "rtts_ms": [ 32.952, 33.057 ], "stars": 0, "raw": "2001:7f8::23a5:0:1 32.952 ms 33.057 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 70.0 }, { "hop": 6, "ip": "2a02:b58:1:15::2", "rtts_ms": [ 33.061, 32.83 ], "stars": 0, "raw": "2a02:b58:1:15::2 33.061 ms 32.830 ms", "asn": 9125, "asname": "ORIONTELEKOM-AS - Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun, RS", "ptr": null, "mtr_loss_pct": 60.0 }, { "hop": 7, "ip": "2a02:660:1:1::12", "rtts_ms": [ 36.56, 36.458 ], "stars": 0, "raw": "2a02:660:1:1::12 36.560 ms 36.458 ms", "asn": 9125, "asname": "ORIONTELEKOM-AS - Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun, RS", "ptr": null }, { "hop": 8, "ip": "2a02:2951::1", "rtts_ms": [ 36.585, 36.602 ], "stars": 0, "raw": "2a02:2951::1 36.585 ms 36.602 ms", "asn": 56843, "asname": "CNT-ISP-AS - Centar Novih Tehnologija DOO, RS", "ptr": null, "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.4, "rtt_worst": 1.1, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 3.6, "stdev": 0.5, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.3, "rtt_best": 1.0, "rtt_worst": 1.9, "stdev": 0.3, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "loss_pct": 70.0, "sent": 10, "rtt_avg": 47.7, "rtt_best": 33.3, "rtt_worst": 66.3, "stdev": 16.9, "asn": null, "asname": "NA", "ptr": null }, { "hop": 6, "ip": "2a02:b58:1:15::2", "loss_pct": 60.0, "sent": 10, "rtt_avg": 108.1, "rtt_best": 32.9, "rtt_worst": 333.0, "stdev": 149.9, "asn": 9125, "asname": "ORIONTELEKOM-AS - Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun, RS", "ptr": null }, { "hop": 9, "ip": "2a02:2951::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.1, "rtt_best": 36.5, "rtt_worst": 40.0, "stdev": 1.0, "asn": 56843, "asname": "CNT-ISP-AS - Centar Novih Tehnologija DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.035 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.908 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.451 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 2.007 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.099 }, { "hop": 5, "ip": "2001:7f8::23a5:0:1", "rtt_ms": 33.43 }, { "hop": 6, "ip": "???", "rtt_ms": 33.129 }, { "hop": 7, "ip": "???", "rtt_ms": 37.224 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.035ms pmtu 1500", " 1: fw1-lju.6connect.com 0.908ms ", " 1: fw1-lju.6connect.com 0.451ms ", " 2: no reply", " 3: 2a00:ee1:800:9::1 2.007ms ", " 4: 2a00:ee0:1:10::2 1.099ms asymm 3 ", " 5: 2001:7f8::23a5:0:1 33.430ms asymm 9 ", " 6: ??? 33.129ms asymm 11 ", " 7: ??? 37.224ms asymm 11 ", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 56843, "origin_asname": "CNT-ISP-AS - Centar Novih Tehnologija DOO, RS", "rate_limited_hops": [ 5, 6 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:b58:1:15::2", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:35Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "mixed", "prefixes": [ { "prefix": "94.154.107.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "2a02:2951::/32", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "CNT-ISP-IPv6", "org": null, "category": "PA" }, { "prefix": "94.154.106.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.105.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.104.0/22", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" }, { "prefix": "94.154.104.0/24", "family": "v4", "status": "ASSIGNED PI", "netname": "ORG-CNTD2-RIPE", "org": null, "category": "PI" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a02:2951::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 56843, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 60733, "holder": "PERKE-NET ZORAN PEROVIC trading as Agencija Perke.NET", "prefixes_v6": [ "2a09:ab80::/29" ], "trace_only": false, "primary_target_ip": "2a09:ab80::1", "target_ip": "2a09:ab80::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a09:ab80::1", "host": "(probe)", "source": "probe", "prefix": "2a09:ab80::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.481, "avg": 35.104, "max": 36.08 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.717, "avg": 35.075, "max": 35.311 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.184, 0.246 ], "stars": 0, "raw": "2607:fae0:a000::2 0.184 ms 0.246 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.46, 0.483 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.460 ms 0.483 ms" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.539, 1.688 ], "stars": 0, "raw": "2a00:ee1:800:9::1 1.539 ms 1.688 ms" }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtts_ms": [ 0.77, 0.843 ], "stars": 0, "raw": "2a00:ee0:1:10::2 0.770 ms 0.843 ms" }, { "hop": 5, "ip": "2001:7f8::626e:0:1", "rtts_ms": [ 23.461, 23.624 ], "stars": 0, "raw": "2001:7f8::626e:0:1 23.461 ms 23.624 ms" }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtts_ms": [ 23.728, 23.684 ], "stars": 0, "raw": "2a12:3200:f000::157 23.728 ms 23.684 ms" }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtts_ms": [ 24.052, 23.977 ], "stars": 0, "raw": "2a12:3200:f000::80 24.052 ms 23.977 ms" }, { "hop": 8, "ip": "2a09:ab80::1", "rtts_ms": [ 36.147, 35.92 ], "stars": 0, "raw": "2a09:ab80::1 36.147 ms 35.920 ms" } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.6, "stdev": 0.1 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 70.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.6, "rtt_worst": 2.3, "stdev": 0.2 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 1.0, "rtt_worst": 1.3, "stdev": 0.1 }, { "hop": 5, "ip": "2001:7f8::626e:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.7, "rtt_best": 23.5, "rtt_worst": 23.9, "stdev": 0.1 }, { "hop": 6, "ip": "2a12:3200:f000::157", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.1, "rtt_best": 23.9, "rtt_worst": 24.3, "stdev": 0.1 }, { "hop": 7, "ip": "2a12:3200:f000::80", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.3, "rtt_best": 24.2, "rtt_worst": 24.5, "stdev": 0.1 }, { "hop": 8, "ip": "2a09:ab80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.8, "rtt_best": 34.6, "rtt_worst": 55.4, "stdev": 6.6 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.49 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.517 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.86 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtt_ms": 1.177 }, { "hop": 5, "ip": "de-cix1.zet.net", "rtt_ms": 23.663 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtt_ms": 24.188 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtt_ms": 24.386 }, { "hop": 8, "ip": "demo2.sox.rs", "rtt_ms": 37.232 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.490ms ", " 1: fw1-lju.6connect.com 0.517ms ", " 2: no reply", " 3: 2a00:ee1:800:9::1 1.860ms ", " 4: 2a00:ee0:1:15::2 1.177ms asymm 3 ", " 5: de-cix1.zet.net 23.663ms asymm 6 ", " 6: 2a12:3200:f000::157 24.188ms ", " 7: 2a12:3200:f000::80 24.386ms asymm 5 ", " 8: demo2.sox.rs 37.232ms reached", " Resume: pmtu 1500 hops 8 back 6 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.481, "avg": 35.104, "max": 36.08 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 34.717, "avg": 35.075, "max": 35.311 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.184, 0.246 ], "stars": 0, "raw": "2607:fae0:a000::2 0.184 ms 0.246 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.46, 0.483 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.460 ms 0.483 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.539, 1.688 ], "stars": 0, "raw": "2a00:ee1:800:9::1 1.539 ms 1.688 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtts_ms": [ 0.77, 0.843 ], "stars": 0, "raw": "2a00:ee0:1:10::2 0.770 ms 0.843 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 5, "ip": "2001:7f8::626e:0:1", "rtts_ms": [ 23.461, 23.624 ], "stars": 0, "raw": "2001:7f8::626e:0:1 23.461 ms 23.624 ms", "asn": null, "asname": "NA", "ptr": "de-cix1.zet.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtts_ms": [ 23.728, 23.684 ], "stars": 0, "raw": "2a12:3200:f000::157 23.728 ms 23.684 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtts_ms": [ 24.052, 23.977 ], "stars": 0, "raw": "2a12:3200:f000::80 24.052 ms 23.977 ms", "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2a09:ab80::1", "rtts_ms": [ 36.147, 35.92 ], "stars": 0, "raw": "2a09:ab80::1 36.147 ms 35.920 ms", "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs", "mtr_loss_pct": 0.0 } ], "last_responsive_hop": 8, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.6, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.0, "rtt_best": 1.6, "rtt_worst": 2.3, "stdev": 0.2, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 1.0, "rtt_worst": 1.3, "stdev": 0.1, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2001:7f8::626e:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.7, "rtt_best": 23.5, "rtt_worst": 23.9, "stdev": 0.1, "asn": null, "asname": "NA", "ptr": "de-cix1.zet.net" }, { "hop": 6, "ip": "2a12:3200:f000::157", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.1, "rtt_best": 23.9, "rtt_worst": 24.3, "stdev": 0.1, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 7, "ip": "2a12:3200:f000::80", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.3, "rtt_best": 24.2, "rtt_worst": 24.5, "stdev": 0.1, "asn": 6204, "asname": "ZET-NET - INTERKVM HOST SRL, RO", "ptr": null }, { "hop": 8, "ip": "2a09:ab80::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 37.8, "rtt_best": 34.6, "rtt_worst": 55.4, "stdev": 6.6, "asn": 60733, "asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "ptr": "demo2.sox.rs" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.49 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.517 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.86 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtt_ms": 1.177 }, { "hop": 5, "ip": "de-cix1.zet.net", "rtt_ms": 23.663 }, { "hop": 6, "ip": "2a12:3200:f000::157", "rtt_ms": 24.188 }, { "hop": 7, "ip": "2a12:3200:f000::80", "rtt_ms": 24.386 }, { "hop": 8, "ip": "demo2.sox.rs", "rtt_ms": 37.232 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.490ms ", " 1: fw1-lju.6connect.com 0.517ms ", " 2: no reply", " 3: 2a00:ee1:800:9::1 1.860ms ", " 4: 2a00:ee0:1:15::2 1.177ms asymm 3 ", " 5: de-cix1.zet.net 23.663ms asymm 6 ", " 6: 2a12:3200:f000::157 24.188ms ", " 7: 2a12:3200:f000::80 24.386ms asymm 5 ", " 8: demo2.sox.rs 37.232ms reached", " Resume: pmtu 1500 hops 8 back 6 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 60733, "origin_asname": "PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a12:3200:f000::1eb", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:01Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "88.218.137.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-Business", "org": null, "category": "PA" }, { "prefix": "2a09:ab80::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-PERKE-20181217", "org": null, "category": "PA" }, { "prefix": "88.218.138.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN-B2", "org": null, "category": "PA" }, { "prefix": "88.218.136.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ZPTA-LAN", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a09:ab80::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 60733, "prefix_len": 29, "maxLength": 60, "ta": "ripe" } ] } ] }, "six": { "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [ { "ixp_name": "sox", "ixp_display_name": "Serbian Open eXchange (SOX)", "fabric_asn": null, "is_member": true, "member": { "asn": 60733, "name": "PERKE", "url": "http://www.perke.net", "peering_policy": "Open", "member_type": "peering", "since": "2019-11-06T10:53:37Z", "ipv6": "2001:7f8:1e::24" }, "sessions": [], "prefixes": [], "transit_for": [], "announced_by": [], "path_via": false } ], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 202676, "holder": "BRZNET BIZNET DOO", "prefixes_v6": [ "2a0b:4040::/29" ], "trace_only": false, "primary_target_ip": "2a0b:4040::1", "target_ip": "2a0b:4040::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0b:4040::1", "host": "(probe)", "source": "probe", "prefix": "2a0b:4040::/29", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 68.675, "avg": 68.789, "max": 68.927 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 68.794, "avg": 68.874, "max": 68.956 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.242, 0.213 ], "stars": 0, "raw": "2607:fae0:a000::2 0.242 ms 0.213 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 2.086, 1.841 ], "stars": 0, "raw": "2a00:ee1:800:9::1 2.086 ms 1.841 ms" }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.97, 0.919 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.970 ms 0.919 ms" }, { "hop": 5, "ip": "2001:7f8::ad12:0:1", "rtts_ms": [ 46.173, 45.981 ], "stars": 0, "raw": "2001:7f8::ad12:0:1 46.173 ms 45.981 ms" }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "rtts_ms": [ 68.333, 68.335 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::2c 68.333 ms 68.335 ms" }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.4, "rtt_worst": 3.7, "stdev": 1.0 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 70.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.2 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 1.9, "rtt_best": 1.7, "rtt_worst": 2.4, "stdev": 0.2 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.3, "rtt_best": 1.0, "rtt_worst": 2.1, "stdev": 0.3 }, { "hop": 5, "ip": "2001:7f8::ad12:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 46.8, "rtt_best": 46.0, "rtt_worst": 52.5, "stdev": 2.0 }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 101.4, "rtt_best": 68.3, "rtt_worst": 369.9, "stdev": 94.7 }, { "hop": 7, "ip": "2a0b:4040::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 84.9, "rtt_best": 68.9, "rtt_worst": 227.6, "stdev": 50.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.549 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.442 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.588 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.901 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtt_ms": 1.018 }, { "hop": 5, "ip": "de-cix.omonia.net", "rtt_ms": 46.202 }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "rtt_ms": 68.604 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: fw1-lju.6connect.com 0.549ms ", " 1: fw1-lju.6connect.com 0.442ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.588ms ", " 3: 2a00:ee1:800:9::1 1.901ms ", " 4: 2a00:ee0:1:15::2 1.018ms asymm 3 ", " 5: de-cix.omonia.net 46.202ms asymm 10 ", " 6: 2a02:2608:ffff:ffff::2c 68.604ms asymm 10 ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 68.675, "avg": 68.789, "max": 68.927 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 68.794, "avg": 68.874, "max": 68.956 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.242, 0.213 ], "stars": 0, "raw": "2607:fae0:a000::2 0.242 ms 0.213 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 2.086, 1.841 ], "stars": 0, "raw": "2a00:ee1:800:9::1 2.086 ms 1.841 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 10.0 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.97, 0.919 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.970 ms 0.919 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 5, "ip": "2001:7f8::ad12:0:1", "rtts_ms": [ 46.173, 45.981 ], "stars": 0, "raw": "2001:7f8::ad12:0:1 46.173 ms 45.981 ms", "asn": null, "asname": "NA", "ptr": "de-cix.omonia.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "rtts_ms": [ 68.333, 68.335 ], "stars": 0, "raw": "2a02:2608:ffff:ffff::2c 68.333 ms 68.335 ms", "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 11, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 6, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.4, "rtt_worst": 3.7, "stdev": 1.0, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 70.0, "loss_masked": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 1.9, "rtt_best": 1.7, "rtt_worst": 2.4, "stdev": 0.2, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.3, "rtt_best": 1.0, "rtt_worst": 2.1, "stdev": 0.3, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2001:7f8::ad12:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 46.8, "rtt_best": 46.0, "rtt_worst": 52.5, "stdev": 2.0, "asn": null, "asname": "NA", "ptr": "de-cix.omonia.net" }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "loss_pct": 0.0, "sent": 10, "rtt_avg": 101.4, "rtt_best": 68.3, "rtt_worst": 369.9, "stdev": 94.7, "asn": 44306, "asname": "Omonia - OMONIA d.o.o., HR", "ptr": null }, { "hop": 7, "ip": "2a0b:4040::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 84.9, "rtt_best": 68.9, "rtt_worst": 227.6, "stdev": 50.1, "asn": 202676, "asname": "BRZNET - BIZNET DOO, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.037 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.549 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.442 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.588 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.901 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtt_ms": 1.018 }, { "hop": 5, "ip": "de-cix.omonia.net", "rtt_ms": 46.202 }, { "hop": 6, "ip": "2a02:2608:ffff:ffff::2c", "rtt_ms": 68.604 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.037ms pmtu 1500", " 1: fw1-lju.6connect.com 0.549ms ", " 1: fw1-lju.6connect.com 0.442ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.588ms ", " 3: 2a00:ee1:800:9::1 1.901ms ", " 4: 2a00:ee0:1:15::2 1.018ms asymm 3 ", " 5: de-cix.omonia.net 46.202ms asymm 10 ", " 6: 2a02:2608:ffff:ffff::2c 68.604ms asymm 10 ", " 7: no reply", " 8: no reply", " 9: no reply", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 202676, "origin_asname": "BRZNET - BIZNET DOO, RS", "rate_limited_hops": [ 3 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:2608:ffff:ffff::2c", "edge_router_ttl": 9, "edge_pings": true, "in_prefix_hops": [], "probed_count": 15 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:01Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "PA", "prefixes": [ { "prefix": "185.55.159.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "BRZNET", "org": null, "category": "PA" }, { "prefix": "2a0b:4040::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-BIZNET-20260126", "org": "BRZNET", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a0b:4040::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 202676, "prefix_len": 29, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 205007, "holder": "ESERVER-RS Maxim Azarov trading as eServer", "prefixes_v6": [ "2a10:9686::/32", "2a04:b540:3000::/36", "2a09:31c0:babe::/48" ], "trace_only": false, "primary_target_ip": "2a04:b540:3000:2::3", "target_ip": "2a04:b540:3000:2::3", "target_host": "(SPF ip6: literal)", "target_source": "dns-spf-ipv6", "targets": [ { "ip": "2a04:b540:3000:2::3", "host": "(SPF ip6: literal)", "source": "dns-spf-ipv6", "prefix": "2a04:b540:3000::/36", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 30.732, "avg": 31.143, "max": 31.692 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 30.783, "avg": 31.914, "max": 34.045 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.2, 0.22 ], "stars": 0, "raw": "2607:fae0:a000::2 0.200 ms 0.220 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.691, 1.948 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.691 ms 1.948 ms" }, { "hop": 4, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.26, 10.062 ], "stars": 0, "raw": "2001:470:0:578::1 7.260 ms 10.062 ms" }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtts_ms": [ 34.18, 9.206 ], "stars": 0, "raw": "2001:7f8:30:0:2:1:0:8400 34.180 ms 9.206 ms" }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtts_ms": [ 40.95, 40.873 ], "stars": 0, "raw": "2a00:e90::212:200:5:7 40.950 ms 40.873 ms" }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtts_ms": [ 40.88, 41.222 ], "stars": 0, "raw": "2a00:e90::212:200:6:8 40.880 ms 41.222 ms" }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtts_ms": [ 41.276, 40.93 ], "stars": 0, "raw": "2a00:e90::212:200:6:60 41.276 ms 40.930 ms" }, { "hop": 10, "ip": "2a00:e90:0:c::7", "rtts_ms": [ 41.602 ], "stars": 1, "raw": "* 2a00:e90:0:c::7 41.602 ms" }, { "hop": 11, "ip": "2a02:e40::23", "rtts_ms": [ 31.276 ], "stars": 1, "raw": "2a02:e40::23 31.276 ms *" }, { "hop": 12, "ip": "2a02:e40::100:e", "rtts_ms": [ 31.753, 32.761 ], "stars": 0, "raw": "2a02:e40::100:e 31.753 ms 32.761 ms" }, { "hop": 13, "ip": "2a04:b540:3000:2::3", "rtts_ms": [ 31.123, 31.751 ], "stars": 0, "raw": "2a04:b540:3000:2::3 31.123 ms !A 31.751 ms !A" } ], "last_responsive_hop": 13, "reached_target": true, "rc": 0 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, 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}, { "hop": 13, "ip": "2a04:b540:3000:2::3", "loss_pct": 0.0, "sent": 10, "rtt_avg": 31.3, "rtt_best": 31.0, "rtt_worst": 32.2, "stdev": 0.3, "asn": 205007, "asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "ptr": "service-1.rs.eserver.net" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.024 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.472 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.44 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.992 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.661 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.139 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.856 }, { "hop": 6, "ip": "2001:7f8:30:0:2:1:0:8400", "rtt_ms": 6.438 }, { "hop": 7, "ip": "2a00:e90::212:200:5:7", "rtt_ms": 40.869 }, { "hop": 8, "ip": "2a00:e90::212:200:6:8", "rtt_ms": 41.082 }, { "hop": 9, "ip": "2a00:e90::212:200:6:60", "rtt_ms": 41.167 }, { "hop": 10, "ip": "2a00:e90:0:c::7", "rtt_ms": 41.72 }, { "hop": 11, "ip": "2a02:e40::23", "rtt_ms": 32.318 }, { "hop": 12, "ip": "2a02:e40::100:e", "rtt_ms": 31.436 }, { "hop": 13, "ip": "service-1.rs.eserver.net", "rtt_ms": 31.474 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.024ms pmtu 1500", " 1: fw1-lju.6connect.com 0.472ms ", " 1: fw1-lju.6connect.com 0.440ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.992ms ", " 3: 2a03:a100:0:201:1::1 0.661ms ", " 4: e0-1.core1.lju1.he.net 2.139ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.856ms ", " 6: 2001:7f8:30:0:2:1:0:8400 6.438ms ", " 7: 2a00:e90::212:200:5:7 40.869ms asymm 20 ", " 8: 2a00:e90::212:200:6:8 41.082ms asymm 19 ", " 9: 2a00:e90::212:200:6:60 41.167ms asymm 18 ", "10: 2a00:e90:0:c::7 41.720ms asymm 19 ", "11: 2a02:e40::23 32.318ms asymm 13 ", "12: 2a02:e40::100:e 31.436ms asymm 13 ", "13: service-1.rs.eserver.net 31.474ms !A", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": true, "errno": 13, "msg": "[Errno 13] Permission denied" }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 31.174182891845703 }, { "port": 80, "open": true, "rtt_ms": 30.6396484375 } ], "origin_asn": 205007, "origin_asname": "ESERVER-RS - Maxim Azarov trading as eServer, RS", "rate_limited_hops": [ 3, 4, 5, 10, 11 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a02:e40::100:e", "edge_router_ttl": 12, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:29:59Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "size_before": 133, "size_after": null }, { "method": "tls", "result": "not_honored", "reason": null, "size_before": 1454, "size_after": 1454 }, { "method": "http", "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "size_before": 295, "size_after": null } ], "matrix": { "http": { "result": "inconclusive", "reason": "natural max segment 295B already <= 1220B; nothing to shrink", "port": 80, "max_before": 295 }, "tls": { "result": "not_honored", "method": "tls", "max_before": 1454, "max_after": 1454 }, "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 133B; not big enough to test PMTU shrink", "max_before": 133 }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a04:b540:3000::/36", "family": "v6", "status": "ALLOCATED-BY-LIR", "netname": "RS-ESERVER", "org": null, "category": "PA" }, { "prefix": "2a09:31c0:babe::/48", "family": "v6", "status": "ASSIGNED", "netname": "VPS1-RS", "org": null, "category": "unknown" }, { "prefix": "2a10:9686::/32", "family": "v6", "status": "ASSIGNED", "netname": "RS-ALEXGROUP-RS", "org": null, "category": "unknown" }, { "prefix": "87.121.38.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "BG-NETERRAIP-20050712", "org": null, "category": "PA" }, { "prefix": "194.87.85.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.250.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" }, { "prefix": "195.133.18.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "185.48.251.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ESERVER-RS", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 3, "invalid": 0, "not_found": 0, "unknown": 0, "total": 3 }, "prefixes": [ { "prefix": "2a04:b540:3000::/36", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 36, "maxLength": 36, "ta": "ripe" } ] }, { "prefix": "2a10:9686::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a09:31c0:babe::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 205007, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 207604, "holder": "UNITED United Internet Ltd.", "prefixes_v6": [ "2a0c:bf80:5a::/48" ], "trace_only": false, "primary_target_ip": "2a0c:bf80:5a::1", "target_ip": "2a0c:bf80:5a::1", "target_host": "(probe)", "target_source": "probe", "targets": [ { "ip": "2a0c:bf80:5a::1", "host": "(probe)", "source": "probe", "prefix": "2a0c:bf80:5a::/48", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 21.546, "avg": 21.64, "max": 21.836 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 22.044, "avg": 22.797, "max": 24.127 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.239, 0.189 ], "stars": 0, "raw": "2607:fae0:a000::2 0.239 ms 0.189 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.84 ], "stars": 1, "raw": "2a00:ee1:800:9::1 1.840 ms *" }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.988, 2.872 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.988 ms 2.872 ms" }, { "hop": 5, "ip": "2001:7f8::232a:0:1", "rtts_ms": [ 14.098 ], "stars": 1, "raw": "2001:7f8::232a:0:1 14.098 ms *" }, { "hop": 6, "ip": "2a02:2d8::57f5:e0bc", "rtts_ms": [ 22.038, 21.847 ], "stars": 0, "raw": "2a02:2d8::57f5:e0bc 22.038 ms 21.847 ms" }, { "hop": 7, "ip": "2a02:2d8:2:2000:232a::1", "rtts_ms": [ 22.064, 22.094 ], "stars": 0, "raw": "2a02:2d8:2:2000:232a::1 22.064 ms 22.094 ms" } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.0, "rtt_best": 0.7, "rtt_worst": 52.2, "stdev": 16.2 }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 1.1, "rtt_worst": 1.4, "stdev": 0.1 }, { "hop": 5, "ip": "2001:7f8::232a:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 16.1, "rtt_best": 14.1, "rtt_worst": 27.6, "stdev": 4.1 }, { "hop": 6, "ip": "2a02:2d8::57f5:e0bc", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.8, "rtt_best": 21.9, "rtt_worst": 45.5, "stdev": 7.2 }, { "hop": 7, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.9, "rtt_best": 21.7, "rtt_worst": 22.6, "stdev": 0.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.725 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.547 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.714 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.744 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.217 }, { "hop": 5, "ip": "de-cix1.rt.act.fkt.de.retn.net", "rtt_ms": 14.406 }, { "hop": 6, "ip": "RT.TNR.BEG.RS.retn.net", "rtt_ms": 22.146 }, { "hop": 7, "ip": "GW-NETOPS.retn.net", "rtt_ms": 22.4 }, { "hop": 8, "ip": "2a0c:bf80:5a::3", "rtt_ms": 22.183 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: fw1-lju.6connect.com 0.725ms ", " 1: fw1-lju.6connect.com 0.547ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.714ms ", " 3: 2a00:ee1:800:9::1 1.744ms ", " 4: 2a00:ee0:1:10::2 1.217ms asymm 3 ", " 5: de-cix1.rt.act.fkt.de.retn.net 14.406ms asymm 9 ", " 6: RT.TNR.BEG.RS.retn.net 22.146ms asymm 8 ", " 7: GW-NETOPS.retn.net 22.400ms asymm 8 ", " 8: 2a0c:bf80:5a::3 22.183ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 22.103548049926758 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 22.244930267333984 } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 21.546, "avg": 21.64, "max": 21.836 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 3, "loss_pct": 25, "rtt_ms": { "min": 22.044, "avg": 22.797, "max": 24.127 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.239, 0.189 ], "stars": 0, "raw": "2607:fae0:a000::2 0.239 ms 0.189 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtts_ms": [ 1.84 ], "stars": 1, "raw": "2a00:ee1:800:9::1 1.840 ms *", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "rtts_ms": [ 0.988, 2.872 ], "stars": 0, "raw": "2a00:ee0:1:15::2 0.988 ms 2.872 ms", "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:7f8::232a:0:1", "rtts_ms": [ 14.098 ], "stars": 1, "raw": "2001:7f8::232a:0:1 14.098 ms *", "asn": null, "asname": "NA", "ptr": "de-cix1.rt.act.fkt.de.retn.net", "mtr_loss_pct": 0.0 }, { "hop": 6, "ip": "2a02:2d8::57f5:e0bc", "rtts_ms": [ 22.038, 21.847 ], "stars": 0, "raw": "2a02:2d8::57f5:e0bc 22.038 ms 21.847 ms", "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "RT.TNR.BEG.RS.retn.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2a02:2d8:2:2000:232a::1", "rtts_ms": [ 22.064, 22.094 ], "stars": 0, "raw": "2a02:2d8:2:2000:232a::1 22.064 ms 22.094 ms", "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "GW-NETOPS.retn.net", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true } ], "last_responsive_hop": 7, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.7, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 6.0, "rtt_best": 0.7, "rtt_worst": 52.2, "stdev": 16.2, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "ccr-to-fw-ccr1-gw-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 4, "ip": "2a00:ee0:1:15::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.2, "rtt_best": 1.1, "rtt_worst": 1.4, "stdev": 0.1, "asn": 5603, "asname": "SIOL-NET - Telekom Slovenije, d.d., SI", "ptr": null }, { "hop": 5, "ip": "2001:7f8::232a:0:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 16.1, "rtt_best": 14.1, "rtt_worst": 27.6, "stdev": 4.1, "asn": null, "asname": "NA", "ptr": "de-cix1.rt.act.fkt.de.retn.net" }, { "hop": 6, "ip": "2a02:2d8::57f5:e0bc", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.8, "rtt_best": 21.9, "rtt_worst": 45.5, "stdev": 7.2, "asn": 9002, "asname": "RETN-AS - RETN Limited, GB", "ptr": "RT.TNR.BEG.RS.retn.net" }, { "hop": 7, "ip": "2a0c:bf80:5a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 21.9, "rtt_best": 21.7, "rtt_worst": 22.6, "stdev": 0.3, "asn": 207604, "asname": "UNITED - United Internet Ltd., RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.029 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.725 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.547 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.714 }, { "hop": 3, "ip": "2a00:ee1:800:9::1", "rtt_ms": 1.744 }, { "hop": 4, "ip": "2a00:ee0:1:10::2", "rtt_ms": 1.217 }, { "hop": 5, "ip": "de-cix1.rt.act.fkt.de.retn.net", "rtt_ms": 14.406 }, { "hop": 6, "ip": "RT.TNR.BEG.RS.retn.net", "rtt_ms": 22.146 }, { "hop": 7, "ip": "GW-NETOPS.retn.net", "rtt_ms": 22.4 }, { "hop": 8, "ip": "2a0c:bf80:5a::3", "rtt_ms": 22.183 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.029ms pmtu 1500", " 1: fw1-lju.6connect.com 0.725ms ", " 1: fw1-lju.6connect.com 0.547ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.714ms ", " 3: 2a00:ee1:800:9::1 1.744ms ", " 4: 2a00:ee0:1:10::2 1.217ms asymm 3 ", " 5: de-cix1.rt.act.fkt.de.retn.net 14.406ms asymm 9 ", " 6: RT.TNR.BEG.RS.retn.net 22.146ms asymm 8 ", " 7: GW-NETOPS.retn.net 22.400ms asymm 8 ", " 8: 2a0c:bf80:5a::3 22.183ms reached", " Resume: pmtu 1500 hops 8 back 8 " ], "rc": 0 }, "udp_unreach": { "received": true, "type": "port_unreachable", "msg": "[Errno 111] Connection refused" }, "tcp": [ { "port": 443, "open": false, "refused": true, "rtt_ms": 22.103548049926758 }, { "port": 80, "open": false, "refused": true, "rtt_ms": 22.244930267333984 } ], "origin_asn": 207604, "origin_asname": "UNITED - United Internet Ltd., RS", "rate_limited_hops": [], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2001:7f8:1e:8::34", "edge_router_ttl": 9, "edge_pings": false, "in_prefix_hops": [], "probed_count": 15 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 6, "last_te_ip": "2a02:2d8::57f5:e0bc", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a00:ee1:800:9::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2a00:ee0:1:15::2" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:7f8::232a:0:1" }, { "ttl": 6, "result": "time_exceeded", "from": "2a02:2d8::57f5:e0bc" }, { "ttl": 7, "result": "echo_reply", "from": "2a0c:bf80:5a::1" }, { "ttl": 8, "result": "echo_reply", "from": "2a0c:bf80:5a::1" }, { "ttl": 9, "result": "echo_reply", "from": "2a0c:bf80:5a::1" }, { "ttl": 10, "result": "echo_reply", "from": "2a0c:bf80:5a::1" }, { "ttl": 11, "result": "echo_reply", "from": "2a0c:bf80:5a::1" } ], "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:07Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: [Errno 111] Connection refused", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: [Errno 111] Connection refused" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "185.119.91.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.7.32.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "2a0c:bf80:5a::/48", "family": "v6", "status": "ASSIGNED", "netname": "RS-UNLIMITED", "org": null, "category": "unknown" }, { "prefix": "185.119.90.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.212.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.241.214.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.89.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-RS", "org": "United Internet Ltd.", "category": "PA" }, { "prefix": "185.119.88.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "UNITED-NL", "org": "United Internet Ltd.", "category": "PA" } ] }, "rpki": { "summary": { "valid": 1, "invalid": 0, "not_found": 0, "unknown": 0, "total": 1 }, "prefixes": [ { "prefix": "2a0c:bf80:5a::/48", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 12459, "prefix_len": 48, "maxLength": 48, "ta": "ripe" }, { "asn": 207604, "prefix_len": 48, "maxLength": 48, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 }, { "vantage": "odin", "asn": 208398, "holder": "TELETECH Edge Technology Plus d.o.o. Beograd", "prefixes_v6": [ "2a02:6b8::/32", "2a02:6b8:4::/48", "2a02:6b8:a::/48", "2a0e:fd87::/32", "2a0e:fd80::/32", "2a02:6b8:e::/48", "2a02:6b8:5::/48", "2a02:6b8:215::/48", "2a02:6b8:23::/48", "2a02:6b8:b::/48", "2a02:6b8::/29", "2a02:6b8:c::/48", "2a02:6b8:22::/48", "2a02:6b8:8::/48", "2a02:6b8:d::/48", "2a02:6b8:21::/48", "2a02:6b8:20::/48", "2a02:6b8:6::/48" ], "trace_only": false, "primary_target_ip": "2a02:6b8::1", "target_ip": "2a02:6b8::1", "target_host": "ns1.yandex.net", "target_source": "dns-ns", "targets": [ { "ip": "2a02:6b8::1", "host": "ns1.yandex.net", "source": "dns-ns", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.897, "avg": 58.063, "max": 58.272 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 58.06, "avg": 58.344, "max": 58.99 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.503, 0.301 ], "stars": 0, "raw": "2607:fae0:a000::2 0.503 ms 0.301 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.689 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.689 ms *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.946 ], "stars": 1, "raw": "2001:470:1:5be::1 1.946 ms *" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.507 ], "stars": 1, "raw": "2001:470:0:578::1 7.507 ms *" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 18.758, 19.455 ], "stars": 0, "raw": "2001:470:0:7ef::1 18.758 ms 19.455 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.32, 20.139 ], "stars": 0, "raw": "2001:470:e:5a::2 19.320 ms 20.139 ms" }, { "hop": 8, "ip": "2001:470:e:38::1", "rtts_ms": [ 24.583, 22.989 ], "stars": 0, "raw": "2001:470:e:38::1 24.583 ms 22.989 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:2", "rtts_ms": [ 39.097, 39.067 ], "stars": 0, "raw": "2a03:5f80:4:2::236:2 39.097 ms 39.067 ms" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 58.681, 58.584 ], "stars": 0, "raw": "2a03:5f80:4::225:147 58.681 ms 58.584 ms" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.7, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 39.9, "rtt_best": 0.7, "rtt_worst": 273.9, "stdev": 103.2 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.1, "rtt_best": 1.8, "rtt_worst": 202.4, "stdev": 63.3 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 6.8, "rtt_worst": 136.6, "stdev": 42.8 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.9, "rtt_best": 19.0, "rtt_worst": 74.5, "stdev": 17.2 }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 18.9, "rtt_best": 17.8, "rtt_worst": 20.4, "stdev": 0.8 }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 25.0, "rtt_best": 24.0, "rtt_worst": 25.8, "stdev": 0.6 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.4, "rtt_best": 40.8, "rtt_worst": 43.8, "stdev": 0.9 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.6, "rtt_best": 58.4, "rtt_worst": 67.5, "stdev": 2.8 }, { "hop": 13, "ip": "2a02:6b8:100:a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 60.9, "rtt_best": 58.7, "rtt_worst": 65.8, "stdev": 2.6 }, { "hop": 14, "ip": "2a02:6b8::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.4, "rtt_best": 58.1, "rtt_worst": 59.7, "stdev": 0.5 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.032 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.441 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.409 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.808 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.636 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.08 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.537 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.344 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.022 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.643 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.226 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtt_ms": 58.638 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.032ms pmtu 1500", " 1: fw1-lju.6connect.com 0.441ms ", " 1: fw1-lju.6connect.com 0.409ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.808ms ", " 3: 2a03:a100:0:201:1::1 0.636ms ", " 4: e0-1.core1.lju1.he.net 2.080ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.537ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.344ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.022ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.643ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.226ms ", "11: 2a03:5f80:4::225:147 58.638ms asymm 14 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:1::1", "host": "ns2.yandex.net", "source": "dns-ns", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 55.868, "avg": 55.954, "max": 56.037 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 55.795, "avg": 55.892, "max": 56.063 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.28, 0.231 ], "stars": 0, "raw": "2607:fae0:a000::2 0.280 ms 0.231 ms" }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.821, 1.649 ], "stars": 0, "raw": "2001:470:1:5be::1 1.821 ms 1.649 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.52, 8.12 ], "stars": 0, "raw": "2001:470:0:578::1 7.520 ms 8.120 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 17.817, 18.806 ], "stars": 0, "raw": "2001:470:0:7ef::1 17.817 ms 18.806 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.982, 18.271 ], "stars": 0, "raw": "2001:470:e:5a::2 19.982 ms 18.271 ms" }, { "hop": 8, "ip": 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{ "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.6, "rtt_best": 0.5, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 23.3, "rtt_best": 0.7, "rtt_worst": 225.4, "stdev": 71.0 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 18.2, "rtt_best": 0.7, "rtt_worst": 157.3, "stdev": 52.2 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 10.7, "rtt_best": 1.9, "rtt_worst": 85.5, 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"ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.676 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.885 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 12.268 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 17.632 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 17.474 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.832 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.43 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 4.597ms ", " 1: fw1-lju.6connect.com 1.138ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.954ms ", " 3: 2a03:a100:0:201:1::1 0.676ms ", " 4: e0-1.core1.lju1.he.net 1.885ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 12.268ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 17.632ms asymm 7 ", " 7: be3.core4.fra1.he.net 17.474ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.832ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.430ms ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 70.65153121948242 }, { "port": 80, "open": true, "rtt_ms": 59.59630012512207 } ], "classification": "open" }, { "ip": "2a02:6b8::1b", "host": "dns.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 67.598, "avg": 67.658, "max": 67.748 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 67.658, "avg": 68.016, "max": 68.638 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.373, 0.3 ], "stars": 0, "raw": "2607:fae0:a000::2 0.373 ms 0.300 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 1.132, 1.64 ], "stars": 0, "raw": "2607:fae0:a000:2::2 1.132 ms 1.640 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 1.637, 0.552 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 1.637 ms 0.552 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.872, 1.892 ], "stars": 0, "raw": "2001:470:1:5be::1 1.872 ms 1.892 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.994, 8.161 ], "stars": 0, "raw": "2001:470:0:578::1 7.994 ms 8.161 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 19.054, 20.176 ], "stars": 0, "raw": "2001:470:0:7ef::1 19.054 ms 20.176 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.7, 19.111 ], "stars": 0, "raw": "2001:470:e:5a::2 19.700 ms 19.111 ms" }, { "hop": 8, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:2", "rtts_ms": [ 38.625, 38.504 ], "stars": 0, "raw": "2a03:5f80:4:2::236:2 38.625 ms 38.504 ms" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 58.821, 67.931 ], "stars": 0, "raw": "2a03:5f80:4::225:147 58.821 ms 67.931 ms" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.1, "rtt_best": 0.5, "rtt_worst": 4.0, "stdev": 1.2 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 1.4, "stdev": 0.3 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.7, "rtt_worst": 1.6, "stdev": 0.3 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.1, "rtt_best": 1.9, "rtt_worst": 2.6, "stdev": 0.3 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.3, "rtt_best": 7.1, "rtt_worst": 10.1, "stdev": 0.8 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.2, "rtt_best": 17.4, "rtt_worst": 20.5, "stdev": 0.9 }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.1, "rtt_best": 18.2, "rtt_worst": 20.2, "stdev": 0.7 }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.8, "rtt_best": 22.7, "rtt_worst": 26.2, "stdev": 1.1 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.2, "rtt_best": 41.0, "rtt_worst": 41.7, "stdev": 0.2 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.2, "rtt_best": 58.4, "rtt_worst": 64.7, "stdev": 2.0 }, { "hop": 14, "ip": "2a02:6b8::1b", "loss_pct": 0.0, "sent": 10, "rtt_avg": 67.8, "rtt_best": 67.7, "rtt_worst": 67.9, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.452 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.422 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.642 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.607 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.184 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.758 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 18.476 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.12 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.087 }, { "hop": 10, "ip": "test-20032023-1.ix.dataix.eu", "rtt_ms": 41.009 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.452ms ", " 1: fw1-lju.6connect.com 0.422ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.642ms ", " 3: 2a03:a100:0:201:1::1 0.607ms ", " 4: e0-1.core1.lju1.he.net 2.184ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.758ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 18.476ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.120ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.087ms asymm 9 ", " 9: no reply", "10: test-20032023-1.ix.dataix.eu 41.009ms ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 69.59295272827148 }, { "port": 80, "open": true, "rtt_ms": 59.1886043548584 } ], "classification": "open" }, { "ip": "2a02:6b8::213", "host": "dns1.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 59.012, "avg": 59.253, "max": 59.768 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 58.936, "avg": 59.114, "max": 59.438 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.625, 0.192 ], "stars": 0, "raw": "2607:fae0:a000::2 0.625 ms 0.192 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.462, 0.352 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.462 ms 0.352 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.488, 0.412 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.488 ms 0.412 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.892, 1.558 ], "stars": 0, "raw": "2001:470:1:5be::1 1.892 ms 1.558 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.742, 8.209 ], "stars": 0, "raw": "2001:470:0:578::1 7.742 ms 8.209 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 18.602, 18.235 ], "stars": 0, "raw": "2001:470:0:7ef::1 18.602 ms 18.235 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.131, 20.184 ], "stars": 0, "raw": "2001:470:e:5a::2 19.131 ms 20.184 ms" }, { "hop": 8, "ip": "2001:470:e:38::1", "rtts_ms": [ 24.231, 24.592 ], "stars": 0, "raw": "2001:470:e:38::1 24.231 ms 24.592 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "rtts_ms": [ 40.775, 40.915 ], "stars": 0, "raw": "2a03:5f80:4:2::236:1 40.775 ms 40.915 ms" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 58.631, 58.998 ], "stars": 0, "raw": "2a03:5f80:4::225:147 58.631 ms 58.998 ms" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.5, "rtt_worst": 1.3, "stdev": 0.3 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.6, "rtt_worst": 0.8, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.6, "rtt_worst": 2.1, "stdev": 0.4 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.8, "rtt_best": 1.6, "rtt_worst": 2.0, "stdev": 0.1 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.2, "rtt_best": 7.0, "rtt_worst": 9.3, "stdev": 0.7 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.1, "rtt_best": 18.3, "rtt_worst": 21.0, "stdev": 0.8 }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.4, "rtt_best": 18.2, "rtt_worst": 21.6, "stdev": 1.0 }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.8, "rtt_best": 24.0, "rtt_worst": 25.9, "stdev": 0.7 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.3, "rtt_best": 41.0, "rtt_worst": 43.0, "stdev": 0.6 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.9, "rtt_best": 58.4, "rtt_worst": 63.0, "stdev": 1.4 }, { "hop": 15, "ip": "2a02:6b8::213", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.2, "rtt_best": 59.0, "rtt_worst": 59.3, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.03 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.682 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.453 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 4.941 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.742 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.903 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.301 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 18.447 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.753 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.568 }, { "hop": 10, "ip": "test-20032023-1.ix.dataix.eu", "rtt_ms": 38.863 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtt_ms": 69.191 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.030ms pmtu 1500", " 1: fw1-lju.6connect.com 0.682ms ", " 1: fw1-lju.6connect.com 0.453ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 4.941ms ", " 3: 2a03:a100:0:201:1::1 0.742ms ", " 4: e0-1.core1.lju1.he.net 1.903ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.301ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 18.447ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.753ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.568ms asymm 9 ", " 9: no reply", "10: test-20032023-1.ix.dataix.eu 38.863ms ", "11: 2a03:5f80:4::225:147 69.191ms asymm 14 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:1::213", "host": "dns2.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, 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0.0, "sent": 10, "rtt_avg": 60.3, "rtt_best": 58.5, "rtt_worst": 69.6, "stdev": 3.5 }, { "hop": 14, "ip": "2a02:6b8:0:1::213", "loss_pct": 0.0, "sent": 10, "rtt_avg": 61.9, "rtt_best": 61.8, "rtt_worst": 62.2, "stdev": 0.1 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.08 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 3.271 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.411 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.689 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.874 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.539 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.63 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.877 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.15 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.381 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.061 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtt_ms": 60.405 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.080ms pmtu 1500", " 1: fw1-lju.6connect.com 3.271ms ", " 1: fw1-lju.6connect.com 0.411ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.689ms ", " 3: 2a03:a100:0:201:1::1 0.874ms ", " 4: e0-1.core1.lju1.he.net 2.539ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.630ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.877ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.150ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.381ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.061ms ", "11: 2a03:5f80:4::225:147 60.405ms asymm 14 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8::183", "host": "ftp.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 58.009, "avg": 58.261, "max": 58.895 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.992, "avg": 58.38, "max": 59.244 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.424, 0.176 ], "stars": 0, "raw": "2607:fae0:a000::2 0.424 ms 0.176 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.455, 0.403 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.455 ms 0.403 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.522, 0.419 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.522 ms 0.419 ms" }, { "hop": 4, "ip": 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"rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": 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10, "rtt_avg": 24.9, "rtt_best": 23.7, "rtt_worst": 26.6, "stdev": 0.9 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.4, "rtt_best": 41.2, "rtt_worst": 42.5, "stdev": 0.4 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 60.1, "rtt_best": 58.6, "rtt_worst": 65.9, "stdev": 2.3 }, { "hop": 14, "ip": "2a02:6b8::183", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.6, "rtt_best": 58.0, "rtt_worst": 62.2, "stdev": 1.3 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.031 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.558 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.457 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.674 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.982 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 3.622 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.93 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 18.127 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 312.921 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 28.819 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.01 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.031ms pmtu 1500", " 1: fw1-lju.6connect.com 0.558ms ", " 1: fw1-lju.6connect.com 0.457ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.674ms ", " 3: 2a03:a100:0:201:1::1 0.982ms ", " 4: e0-1.core1.lju1.he.net 3.622ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.930ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 18.127ms asymm 7 ", " 7: be3.core4.fra1.he.net 312.921ms asymm 8 ", " 8: be2.core3.ams1.he.net 28.819ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.010ms ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": true, "rtt_ms": 62.08539009094238 }, { "port": 80, "open": true, "rtt_ms": 59.569358825683594 } ], "classification": "open" }, { "ip": "2a02:6b8::125", "host": "imap.yandex.ru", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.795, "avg": 57.813, "max": 57.851 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.63, "avg": 57.9, "max": 58.347 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.451, 0.234 ], "stars": 0, "raw": "2607:fae0:a000::2 0.451 ms 0.234 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.509, 0.368 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.509 ms 0.368 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.567, 0.853 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.567 ms 0.853 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.977, 1.863 ], "stars": 0, "raw": "2001:470:1:5be::1 1.977 ms 1.863 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 8.522, 8.133 ], "stars": 0, "raw": "2001:470:0:578::1 8.522 ms 8.133 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 19.044, 18.317 ], "stars": 0, "raw": "2001:470:0:7ef::1 19.044 ms 18.317 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.149, 20.647 ], "stars": 0, "raw": "2001:470:e:5a::2 19.149 ms 20.647 ms" }, { "hop": 8, "ip": "2001:470:e:38::1", "rtts_ms": [ 24.471, 24.396 ], "stars": 0, "raw": "2001:470:e:38::1 24.471 ms 24.396 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:2", "rtts_ms": [ 38.525, 38.408 ], "stars": 0, "raw": "2a03:5f80:4:2::236:2 38.525 ms 38.408 ms" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 76.74, 79.909 ], "stars": 0, "raw": "2a03:5f80:4::225:147 76.740 ms 79.909 ms" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.7, "rtt_best": 0.3, "rtt_worst": 2.0, "stdev": 0.5 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.7, "rtt_worst": 1.0, "stdev": 0.1 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.2, "rtt_best": 1.8, "rtt_worst": 2.6, "stdev": 0.2 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 8.6, "rtt_best": 7.3, "rtt_worst": 10.0, "stdev": 0.9 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.1, "rtt_best": 17.9, "rtt_worst": 20.6, "stdev": 0.9 }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 10.0, "sent": 10, "rtt_avg": 19.4, "rtt_best": 18.7, "rtt_worst": 20.1, "stdev": 0.5 }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.8, "rtt_best": 23.8, "rtt_worst": 26.2, "stdev": 0.7 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 65.0, "rtt_best": 38.6, "rtt_worst": 300.9, "stdev": 82.9 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 78.5, "rtt_best": 58.4, "rtt_worst": 250.3, "stdev": 60.4 }, { "hop": 14, "ip": "2a02:6b8::125", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.1, "rtt_best": 57.9, "rtt_worst": 58.6, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.036 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.99 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.34 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.479 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.662 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.002 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 7.985 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.012 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 18.544 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 25.539 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 40.963 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.036ms pmtu 1500", " 1: fw1-lju.6connect.com 0.990ms ", " 1: fw1-lju.6connect.com 0.340ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.479ms ", " 3: 2a03:a100:0:201:1::1 0.662ms ", " 4: e0-1.core1.lju1.he.net 2.002ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 7.985ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.012ms asymm 7 ", " 7: be3.core4.fra1.he.net 18.544ms asymm 8 ", " 8: be2.core3.ams1.he.net 25.539ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 40.963ms ", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" }, { "ip": "2a02:6b8:0:809:95:108:159:23", "host": "lg.yandex.net", "source": "whois", "prefix": "2a02:6b8::/32", "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.285, "avg": 57.845, "max": 58.612 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.3, "avg": 57.574, "max": 58.007 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 16.31, 0.265 ], "stars": 0, "raw": "2607:fae0:a000::2 16.310 ms 0.265 ms" }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "rtts_ms": [ 0.457, 0.351 ], "stars": 0, "raw": "2607:fae0:a000:2::2 0.457 ms 0.351 ms" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.478, 0.463 ], "stars": 0, "raw": "2a03:a100:0:201:1::1 0.478 ms 0.463 ms" }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.823, 1.616 ], "stars": 0, "raw": "2001:470:1:5be::1 1.823 ms 1.616 ms" }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 9.316, 7.949 ], "stars": 0, "raw": "2001:470:0:578::1 9.316 ms 7.949 ms" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 19.94, 19.655 ], "stars": 0, "raw": "2001:470:0:7ef::1 19.940 ms 19.655 ms" }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 20.709, 18.414 ], "stars": 0, "raw": "2001:470:e:5a::2 20.709 ms 18.414 ms" }, { "hop": 8, "ip": "2001:470:e:38::1", "rtts_ms": [ 24.167, 26.244 ], "stars": 0, "raw": "2001:470:e:38::1 24.167 ms 26.244 ms" }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "rtts_ms": [ 40.914, 40.85 ], "stars": 0, "raw": "2a03:5f80:4:2::236:1 40.914 ms 40.850 ms" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 62.038, 58.214 ], "stars": 0, "raw": "2a03:5f80:4::225:147 62.038 ms 58.214 ms" }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 1.0, "rtt_best": 0.4, "rtt_worst": 3.4, "stdev": 1.1 }, { "hop": 2, "ip": "2607:fae0:a000:2::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.8, "rtt_best": 0.6, "rtt_worst": 0.9, "stdev": 0.1 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.9, "rtt_best": 0.7, "rtt_worst": 1.5, "stdev": 0.3 }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 2.3, "rtt_best": 2.0, "rtt_worst": 3.1, "stdev": 0.4 }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 7.7, "rtt_best": 6.4, "rtt_worst": 8.7, "stdev": 0.7 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 18.9, "rtt_best": 18.2, "rtt_worst": 20.1, "stdev": 0.7 }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 19.2, "rtt_best": 18.0, "rtt_worst": 20.3, "stdev": 0.7 }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 24.8, "rtt_best": 23.3, "rtt_worst": 27.0, "stdev": 1.1 }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.1, "rtt_best": 41.0, "rtt_worst": 41.6, "stdev": 0.2 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.6, "rtt_best": 58.2, "rtt_worst": 66.1, "stdev": 2.5 }, { "hop": 17, "ip": "2a02:6b8:0:809:95:108:159:23", "loss_pct": 0.0, "sent": 10, "rtt_avg": 57.6, "rtt_best": 57.3, "rtt_worst": 57.9, "stdev": 0.2 } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.033 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.518 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.318 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.513 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.713 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.891 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.343 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.0 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.116 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 25.876 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.252 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtt_ms": 58.682 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.033ms pmtu 1500", " 1: fw1-lju.6connect.com 0.518ms ", " 1: fw1-lju.6connect.com 0.318ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.513ms ", " 3: 2a03:a100:0:201:1::1 0.713ms ", " 4: e0-1.core1.lju1.he.net 1.891ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.343ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.000ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.116ms asymm 8 ", " 8: be2.core3.ams1.he.net 25.876ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.252ms ", "11: 2a03:5f80:4::225:147 58.682ms asymm 14 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "classification": "open" } ], "ping_small": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 57.897, "avg": 58.063, "max": 58.272 }, "size_bytes": 56, "df": false, "ok": true }, "ping_large": { "sent": 4, "received": 4, "loss_pct": 0, "rtt_ms": { "min": 58.06, "avg": 58.344, "max": 58.99 }, "size_bytes": 1452, "df": true, "ok": true }, "traceroute": { "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "rtts_ms": [ 0.503, 0.301 ], "stars": 0, "raw": "2607:fae0:a000::2 0.503 ms 0.301 ms", "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "mtr_loss_pct": 0.0 }, { "hop": 2, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtts_ms": [ 0.689 ], "stars": 1, "raw": "2a03:a100:0:201:1::1 0.689 ms *", "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null, "mtr_loss_pct": 30.0 }, { "hop": 4, "ip": "2001:470:1:5be::1", "rtts_ms": [ 1.946 ], "stars": 1, "raw": "2001:470:1:5be::1 1.946 ms *", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 5, "ip": "2001:470:0:578::1", "rtts_ms": [ 7.507 ], "stars": 1, "raw": "2001:470:0:578::1 7.507 ms *", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 6, "ip": "2001:470:0:7ef::1", "rtts_ms": [ 18.758, 19.455 ], "stars": 0, "raw": "2001:470:0:7ef::1 18.758 ms 19.455 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-19.core2.fra2.he.net", "mtr_loss_pct": 0.0 }, { "hop": 7, "ip": "2001:470:e:5a::2", "rtts_ms": [ 19.32, 20.139 ], "stars": 0, "raw": "2001:470:e:5a::2 19.320 ms 20.139 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core4.fra1.he.net", "mtr_loss_pct": 0.0 }, { "hop": 8, "ip": "2001:470:e:38::1", "rtts_ms": [ 24.583, 22.989 ], "stars": 0, "raw": "2001:470:e:38::1 24.583 ms 22.989 ms", "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core3.ams1.he.net", "mtr_loss_pct": 10.0 }, { "hop": 9, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:2", "rtts_ms": [ 39.097, 39.067 ], "stars": 0, "raw": "2a03:5f80:4:2::236:2 39.097 ms 39.067 ms", "asn": null, "asname": "NA", "ptr": "test-20032023-1.ix.dataix.eu", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtts_ms": [ 58.681, 58.584 ], "stars": 0, "raw": "2a03:5f80:4::225:147 58.681 ms 58.584 ms", "asn": null, "asname": "NA", "ptr": null, "mtr_loss_pct": 0.0 }, { "hop": 12, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 13, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 14, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *", "mtr_loss_pct": 0.0, "mtr_loss_path_mismatch": true }, { "hop": 15, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 16, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 17, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 18, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 19, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 20, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 21, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 22, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 23, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" }, { "hop": 24, "ip": null, "rtts_ms": [], "stars": 2, "raw": "* *" } ], "last_responsive_hop": 11, "reached_target": false, "rc": 2 }, "mtr": { "count": 10, "interval_s": 1.0, "hops": [ { "hop": 1, "ip": "2607:fae0:a000::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 0.5, "rtt_best": 0.4, "rtt_worst": 0.7, "stdev": 0.1, "asn": 8038, "asname": "6CONNECT - 6connect, Inc., US", "ptr": "fw1-lju.6connect.com", "loss_pct_raw": 0.0, "loss_masked": true }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "loss_pct": 30.0, "sent": 10, "rtt_avg": 39.9, "rtt_best": 0.7, "rtt_worst": 273.9, "stdev": 103.2, "asn": 56635, "asname": "XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI", "ptr": null }, { "hop": 4, "ip": "2001:470:1:5be::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 22.1, "rtt_best": 1.8, "rtt_worst": 202.4, "stdev": 63.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 22.4, "rtt_best": 6.8, "rtt_worst": 136.6, "stdev": 42.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 6, "ip": "2001:470:0:7ef::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 25.9, "rtt_best": 19.0, "rtt_worst": 74.5, "stdev": 17.2, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-19.core2.fra2.he.net" }, { "hop": 7, "ip": "2001:470:e:5a::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 18.9, "rtt_best": 17.8, "rtt_worst": 20.4, "stdev": 0.8, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be3.core4.fra1.he.net" }, { "hop": 8, "ip": "2001:470:e:38::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 25.0, "rtt_best": 24.0, "rtt_worst": 25.8, "stdev": 0.6, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core3.ams1.he.net" }, { "hop": 10, "ip": "2a03:5f80:4:2::236:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 41.4, "rtt_best": 40.8, "rtt_worst": 43.8, "stdev": 0.9, "asn": null, "asname": "NA", "ptr": "ix.dataix.eu" }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "loss_pct": 0.0, "sent": 10, "rtt_avg": 59.6, "rtt_best": 58.4, "rtt_worst": 67.5, "stdev": 2.8, "asn": null, "asname": "NA", "ptr": null }, { "hop": 13, "ip": "2a02:6b8:100:a::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 60.9, "rtt_best": 58.7, "rtt_worst": 65.8, "stdev": 2.6, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": "m9-s16x-vbdif802.yndx.net" }, { "hop": 14, "ip": "2a02:6b8::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 58.4, "rtt_best": 58.1, "rtt_worst": 59.7, "stdev": 0.5, "asn": 13238, "asname": "YANDEX - YANDEX LLC, RU", "ptr": "ns1.yandex.net" } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.032 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.441 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.409 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.808 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.636 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 2.08 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.537 }, { "hop": 6, "ip": "100ge0-0-0-19.core2.fra2.he.net", "rtt_ms": 19.344 }, { "hop": 7, "ip": "be3.core4.fra1.he.net", "rtt_ms": 19.022 }, { "hop": 8, "ip": "be2.core3.ams1.he.net", "rtt_ms": 24.643 }, { "hop": 10, "ip": "ix.dataix.eu", "rtt_ms": 41.226 }, { "hop": 11, "ip": "2a03:5f80:4::225:147", "rtt_ms": 58.638 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.032ms pmtu 1500", " 1: fw1-lju.6connect.com 0.441ms ", " 1: fw1-lju.6connect.com 0.409ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.808ms ", " 3: 2a03:a100:0:201:1::1 0.636ms ", " 4: e0-1.core1.lju1.he.net 2.080ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.537ms ", " 6: 100ge0-0-0-19.core2.fra2.he.net 19.344ms asymm 7 ", " 7: be3.core4.fra1.he.net 19.022ms asymm 8 ", " 8: be2.core3.ams1.he.net 24.643ms asymm 9 ", " 9: no reply", "10: ix.dataix.eu 41.226ms ", "11: 2a03:5f80:4::225:147 58.638ms asymm 14 ", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 13238, "origin_asname": "YANDEX - YANDEX LLC, RU", "rate_limited_hops": [ 3, 5, 8 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:5f80:4::225:147", "edge_router_ttl": 11, "edge_pings": false, "in_prefix_hops": [], "probed_count": 30 }, "pmtud_diagnose": { "last_ptb_ttl": null, "last_ptb_ip": null, "last_ptb_mtu": null, "last_te_ttl": 14, "last_te_ip": "2a02:6b8:100:a::1", "reached_target": true, "verdict": "no_break", "explanation": "1500-byte probe reached the destination on at least one TTL (should not happen for an echo_only target)." }, "pmtud_probes": [ { "ttl": 2, "result": "time_exceeded", "from": "2607:fae0:a000:2::2" }, { "ttl": 3, "result": "time_exceeded", "from": "2a03:a100:0:201:1::1" }, { "ttl": 4, "result": "time_exceeded", "from": "2001:470:1:5be::1" }, { "ttl": 5, "result": "time_exceeded", "from": "2001:470:0:578::1" }, { "ttl": 6, "result": "no_response" }, { "ttl": 7, "result": "no_response" }, { "ttl": 8, "result": "time_exceeded", "from": "2001:470:0:277::1" }, { "ttl": 9, "result": "no_response" }, { "ttl": 10, "result": "no_response" }, { "ttl": 11, "result": "time_exceeded", "from": "2a03:5f80:4:2::236:1" }, { "ttl": 12, "result": "time_exceeded", "from": "2a03:5f80:4::225:147" }, { "ttl": 13, "result": "no_response" }, { "ttl": 14, "result": "time_exceeded", "from": "2a02:6b8:100:a::1" }, { "ttl": 15, "result": "echo_reply", "from": "2a02:6b8::1" }, { "ttl": 16, "result": "echo_reply", "from": "2a02:6b8::1" } ], "rfc4890": "violation", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination did not act on our forged Packet-Too-Big (filtered en route or stack ignored it).", "type2_active": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "fragments_after": null, "evidence": null, "port": null, "reason": null, "tested_at": "2026-05-30T11:29:41Z", "attempts": [ { "method": "icmp6-echo", "result": "not_honored", "reason": null, "size_before": 1460, "size_after": 1460 }, { "method": "dns-tcp", "result": "inconclusive", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "size_before": 31, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "dns-tcp": { "result": "inconclusive", "method": "dns-tcp", "reason": "max DNS-over-TCP segment 31B; not big enough to test PMTU shrink", "max_before": 31 }, "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "not_honored", "method": "icmp6-echo", "size_before": 1460, "size_after": 1460, "probe_size": 1500, "ptb_mtu": 1280 } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a02:6b8:5::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-5--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:8::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-8--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:6::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-6--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:b::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-b--48", "org": "Kazbek Bi street, Almaty, Kazakhstan", "category": "unknown" }, { "prefix": "2a02:6b8:e::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-e--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd80::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:21::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-21--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:d::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-d--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:a::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-a--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:22::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-22--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:23::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-23--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-YANDEX-20080815", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:215::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-215--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a0e:fd87::/32", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "2a02:6b8:4::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-4--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:20::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-20--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "2a02:6b8:c::/48", "family": "v6", "status": "ASSIGNED", "netname": "YANDEX-V6-c--48", "org": "Yandex enterprise network", "category": "unknown" }, { "prefix": "45.87.132.0/22", "family": "v4", "status": "ALLOCATED PA", "netname": "RS-TELETECH-20190614", "org": null, "category": "PA" }, { "prefix": "95.108.128.0/17", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20081209", "org": null, "category": "PA" }, { "prefix": "37.9.112.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-37-9-112-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "87.250.247.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-87-250-247-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "37.9.64.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20111214", "org": null, "category": "PA" }, { "prefix": "178.154.131.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-178-154-131-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "77.88.55.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "YANDEX-77-88-55-0", "org": "Yandex enterprise network", "category": "PA" }, { "prefix": "5.45.192.0/18", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-YANDEX-20120525", "org": null, "category": "PA" }, { "prefix": "178.154.128.0/19", "family": "v4", "status": "ALLOCATED PA", "netname": 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"rtt_best": 1.5, "rtt_worst": 2.4, "stdev": 0.3, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "e0-1.core1.lju1.he.net" }, { "hop": 5, "ip": "2001:470:0:578::1", "loss_pct": 10.0, "sent": 10, "rtt_avg": 8.3, "rtt_best": 6.8, "rtt_worst": 9.7, "stdev": 1.0, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "100ge0-0-0-5.core1.vie1.he.net" }, { "hop": 8, "ip": "2001:470:0:259::2", "loss_pct": 0.0, "sent": 10, "rtt_avg": 115.5, "rtt_best": 96.1, "rtt_worst": 276.8, "stdev": 56.7, "asn": 6939, "asname": "HURRICANE - Hurricane Electric LLC, US", "ptr": "be2.core2.nyc6.he.net" }, { "hop": 9, "ip": "2001:504:1::a505:2000:1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 103.4, "rtt_best": 95.4, "rtt_worst": 173.7, "stdev": 24.7, "asn": null, "asname": "NA", "ptr": null }, { "hop": 10, "ip": "2a12:6c42::1", "loss_pct": 0.0, "sent": 10, "rtt_avg": 95.6, "rtt_best": 95.3, "rtt_worst": 96.1, "stdev": 0.2, "asn": 216024, "asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "ptr": null } ], "rc": 0 }, "tracepath": { "final_pmtu": 1500, "pmtu_changes": [ 1500, 1500, 1500 ], "hops": [ { "hop": 1, "ip": "[LOCALHOST]", "rtt_ms": 0.03 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.371 }, { "hop": 1, "ip": "fw1-lju.6connect.com", "rtt_ms": 0.324 }, { "hop": 2, "ip": "ccr-to-fw-ccr1-gw-lju.6connect.com", "rtt_ms": 0.723 }, { "hop": 3, "ip": "2a03:a100:0:201:1::1", "rtt_ms": 0.815 }, { "hop": 4, "ip": "e0-1.core1.lju1.he.net", "rtt_ms": 1.937 }, { "hop": 5, "ip": "100ge0-0-0-5.core1.vie1.he.net", "rtt_ms": 8.38 }, { "hop": 8, "ip": "be2.core2.nyc6.he.net", "rtt_ms": 97.175 }, { "hop": 9, "ip": "2001:504:1::a505:2000:1", "rtt_ms": 95.463 } ], "raw_lines": [ " 1?: [LOCALHOST] 0.030ms pmtu 1500", " 1: fw1-lju.6connect.com 0.371ms ", " 1: fw1-lju.6connect.com 0.324ms ", " 2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.723ms ", " 3: 2a03:a100:0:201:1::1 0.815ms ", " 4: e0-1.core1.lju1.he.net 1.937ms ", " 5: 100ge0-0-0-5.core1.vie1.he.net 8.380ms ", " 6: no reply", " 7: no reply", " 8: be2.core2.nyc6.he.net 97.175ms ", " 9: 2001:504:1::a505:2000:1 95.463ms ", "10: no reply", "11: no reply", "12: no reply", "13: no reply", "14: no reply", "15: no reply", "16: no reply", "17: no reply", "18: no reply", "19: no reply", "20: no reply", "21: no reply", "22: no reply", "23: no reply", "24: no reply", " Too many hops: pmtu 1500", " Resume: pmtu 1500 " ], "rc": 0 }, "udp_unreach": { "received": false }, "tcp": [ { "port": 443, "open": false, "refused": false, "error": "timed out" }, { "port": 80, "open": false, "refused": false, "error": "timed out" } ], "origin_asn": 216024, "origin_asname": "KVMKA-COM - ALEKSEI FEDOROV PR KRUSEVAC, RS", "rate_limited_hops": [ 5 ], "classification": "open", "yarrp_blackhole": { "edge_router_ip": "2a03:afc0:3:1002::2", "edge_router_ttl": 24, "edge_pings": true, "in_prefix_hops": [], "probed_count": 30 }, "rfc4890": "compliant", "rfc4890_reason": "Active Type 2 test (icmp6-echo) showed the destination accepted and acted on a forged ICMPv6 Packet-Too-Big toward it.", "type2_active": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "size_after": null, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)", "port": null, "reason": null, "tested_at": "2026-05-30T11:30:07Z", "attempts": [ { "method": "icmp6-echo", "result": "honored", "reason": null, "size_before": 1460, "size_after": null }, { "method": "dns-tcp", "result": "no_tcp", "reason": "connect failed: timed out", "size_before": null, "size_after": null }, { "method": "tls", "result": "no_tcp", "reason": "TLS connect failed", "size_before": null, "size_after": null }, { "method": "http", "result": "no_tcp", "reason": "tcp/80 not open", "size_before": null, "size_after": null } ], "matrix": { "http": { "result": "no_tcp", "method": "http", "reason": "tcp/80 not open" }, "dns-tcp": { "result": "no_tcp", "method": "dns-tcp", "reason": "connect failed: timed out" }, "tls": { "result": "no_tcp", "method": "tls", "reason": "TLS connect failed" }, "icmp6-echo": { "result": "honored", "method": "icmp6-echo", "size_before": 1460, "probe_size": 1500, "ptb_mtu": 1280, "fragments_after": 2, "evidence": "destination fragmented its 1500-byte Echo Reply via IPv6 Fragment Header after we sent the forged Type 2 (MTU=1280)" } } }, "address_space": { "type": "unknown", "prefixes": [ { "prefix": "2a12:6c40::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "SG-ALEXGROUP", "org": null, "category": "PA" }, { "prefix": "2a11:c880::/29", "family": "v6", "status": "ALLOCATED-BY-RIR", "netname": "RU-ALEXGROUP-20210901", "org": null, "category": "PA" }, { "prefix": "2a0f:cdc6:2030::/45", "family": "v6", "status": "ASSIGNED", "netname": "TUN_NL_AMS_ITNETPASS_v6", "org": null, "category": "unknown" }, { "prefix": "2a12:6c42::/32", "family": "v6", "status": "AGGREGATED-BY-LIR", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "194.87.189.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "2a10:9683::/32", "family": "v6", "status": "ASSIGNED", "netname": "US-ALEXGROUP", "org": null, "category": "unknown" }, { "prefix": "195.133.2.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.23.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-FI", "org": null, "category": "PA" }, { "prefix": "45.129.143.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "176.98.191.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "146.255.188.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP-20210830", "org": null, "category": "PA" }, { "prefix": "109.107.171.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "193.38.235.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "193.124.203.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "ORG-AFPK3-RIPE", "org": null, "category": "PA" }, { "prefix": "193.233.22.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMka-US", "org": null, "category": "PA" }, { "prefix": "109.107.182.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "195.133.28.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" }, { "prefix": "195.133.26.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "KVMKa", "org": null, "category": "PA" }, { "prefix": "185.142.33.0/24", "family": "v4", "status": "SUB-ALLOCATED PA", "netname": "DE-KVMKA", "org": null, "category": "PA" }, { "prefix": "217.65.79.0/24", "family": "v4", "status": "ALLOCATED PA", "netname": "RU-ALEXGROUP3-20250709", "org": null, "category": "PA" }, { "prefix": "77.221.145.0/24", "family": "v4", "status": "ASSIGNED PA", "netname": "NL-KVMKA", "org": null, "category": "PA" } ] }, "rpki": { "summary": { "valid": 4, "invalid": 0, "not_found": 1, "unknown": 0, "total": 5 }, "prefixes": [ { "prefix": "2a12:6c40::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a11:c880::/29", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 52000, "prefix_len": 29, "maxLength": 29, "ta": "ripe" }, { "asn": 216024, "prefix_len": 29, "maxLength": 29, "ta": "ripe" } ] }, { "prefix": "2a0f:cdc6:2030::/45", "state": "not-found", "reason": "no covering VRP", "covering_vrps": [] }, { "prefix": "2a10:9683::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] }, { "prefix": "2a12:6c42::/32", "state": "valid", "reason": "matched VRP (correct origin, length within maxLength)", "covering_vrps": [ { "asn": 216024, "prefix_len": 32, "maxLength": 32, "ta": "ripe" } ] } ] }, "six": { "is_member": false, "member": null, "sessions": [], "prefixes_via_six": [], "transit_for_at_six": [], "announced_by_at_six": [], "path_via_six": false }, "ixps": [], "filter_likely_at": "(none)", "pmtu_min": 1500 } ]