AS overview
Test target: 2001:67c:2fbc::1 · static prefix probe · address space: PI · prefixes announced: 1
prefix(es): 2001:67c:2fbc::/48
Targets & per-vantage-point probe results (1 target(s) across 7 vantage point(s))
Source codes (hover any badge for full description): CUR=curated · NS/SOA/MX=DNS records · SPF=SPF TXT · DRV=holder-derived (www, ns1, mail, gw, …) · ATL=RIPE Atlas · PDB=PeeringDB · WHOIS=RIPE whois · RDAP=RIPE RDAP · HIT=IPv6 Hitlist · RTR=in-prefix path hop (router) · PRB=static prefix probe · SYN=synthetic prefix::1 fallback
| Target IP / hostname | Source | SRB host (SOX, Belgrade) | DE host (Berlin) | DE host (Düsseldorf) | NL host (go6lab) | ITA host (Karsolink) | SLO host (6connect) | SLO host (T-2) | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ||
2001:67c:2fbc::1 | prb | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering
Not an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO member, but our traceroute path crosses the MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO LAN from SLO host (T-2) - reached via an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO-resident transit operator.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:67c:2fbc::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS212467 /48 maxLen 48 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS212467's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a0d:b280:0:42::6 at hop 24 - that router does not answer ICMPv6 Echo. This is not in AS212467's announced prefix; operationally it's the AS-edge / peering interface (often on an IXP peering address or an upstream's /127 link). The traceroute boundary is the AS edge: ICMPv6 Time-Exceeded responses from anything inside this AS are filtered.
ICMPv6 Type 2 (Packet Too Big) acceptance - active test
Type 2 honored. Forged ICMPv6 PTB (MTU=1280) was accepted by the destination's stack: the next 1500-byte Echo Reply arrived split into 2 fragments via the IPv6 Fragment Header.
method: ICMPv6 Echo + forged PTB, tested 2026-09-23T12:00:07Z
Multi-vantage path map
Every hop of all vantages’ traceroutes toward the target, drawn left→right, grouped into per-AS bubbles (a hop seen from several vantages is one shared bubble, so converging paths merge). It answers two questions per vantage — shown on each source bubble as echo ✓/⚠/✗ · trace ✓/✗: did the destination reply to ICMPv6 Echo (✓ honored, ⚠ replied but PTB not honored, ✗ no reply), and did the traceroute reach it. A line to the target is drawn only when that vantage got an echo reply — solid if the PTB was honored, dashed if not (reachable but a broken-PMTUD / RFC 4890 violation). The path depth still shows how far the traceroute itself got, and runs of unanswered (* *) hops collapse into one dashed “silent” bubble. Open full size ↗
- ● SRB host (SOX, Belgrade)
- ● DE host (Berlin)
- ● DE host (Düsseldorf)
- ● NL host (go6lab)
- ● ITA host (Karsolink)
- ● SLO host (6connect)
- ● SLO host (T-2)
- ── solid line = echo reply, PTB honored (clean reach)
- — — dashed line = echo reply but PTB not honored (RFC 4890 violation)
- no line = no echo reply (never reached)
- ◉ target: green = clean, amber = reachable-but-violation / unreachable
- ⚠ suspected drop AS
- ⋯ silent (unanswered) hops
- ● IXP hop
From SRB host (SOX, Belgrade) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a09:ab81::1 | 0.2ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | 2001:7f8:1e::4 | 0.7ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | 2001:7f8:30:0:2:1:0:9002 | 47.3ms | 0% | - | NA |
| 4 | RT.MIX.MIL.IT.retn.net 2a02:2d8::57f5:e080 | 26.9ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 5 | GW-AS41720.retn.net 2a02:2d8:1:b81b:232a::1 | 29.0ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 6 | * | - | - | - | |
| 7 | * | - | 0% | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.011ms pmtu 1500
1: _gateway 0.677ms
1: _gateway 0.462ms
2: 2001:7f8:1e::4 0.810ms
3: 2001:7f8:30:0:2:1:0:9002 13.108ms
4: RT.MIX.MIL.IT.retn.net 24.080ms
5: GW-AS41720.retn.net 28.529ms asymm 6
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Berlin) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-13-178.gw01.ber01.as59645.net 2a06:d1c1:100:b::1 | 0.4ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.7ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | retn.bcix.de 2001:7f8:19:1::232a:1 | 10.6ms | 0% | - | NA |
| 4 | RT.MIX.MIL.IT.retn.net 2a02:2d8::57f5:e080 | 19.4ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 5 | GW-AS41720.retn.net 2a02:2d8:1:b81b:232a::1 | 19.4ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 6 | * | - | - | - | |
| 7 | * | - | 0% | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.697ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.599ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.119ms
3: retn.bcix.de 10.896ms asymm 5
4: RT.MIX.MIL.IT.retn.net 19.310ms asymm 5
5: GW-AS41720.retn.net 19.745ms asymm 7
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Düsseldorf) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-12-142.gw01.dus01.as59645.net 2a06:d1c1:100:d::1 | 0.2ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-101.cr10.dus02.lwlcom.net 2a06:d1c0::dead:beef:1301 | 0.5ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-50.cr10.dtm01.lwlcom.net 2a00:c380:b200:230::25 | 1.8ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-20.cr11.dtm01.lwlcom.net 2a00:c380:b200:230::93 | 1.6ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-15.cr10.ber03.lwlcom.net 2a00:c380:b200:230::4 | 8.2ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae0-10.cr10.ber01.lwlcom.net 2a00:c380:b200:230::221 | 8.4ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 7 | retn.bcix.de 2001:7f8:19:1::232a:1 | 10.1ms | 0% | - | NA |
| 8 | RT.MIX.MIL.IT.retn.net 2a02:2d8::57f5:e080 | 18.6ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 9 | GW-AS41720.retn.net 2a02:2d8:1:b81b:232a::1 | 18.8ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 10 | * | - | - | - | |
| 11 | * | - | 0% | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.021ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.321ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.339ms
2: ae0-101.cr10.dus02.lwlcom.net 0.594ms
3: ae0-50.cr10.dtm01.lwlcom.net 1.781ms
4: ae0-20.cr11.dtm01.lwlcom.net 1.735ms
5: ae0-15.cr10.ber03.lwlcom.net 8.450ms asymm 4
6: ae0-10.cr10.ber01.lwlcom.net 8.406ms asymm 3
7: retn.bcix.de 10.416ms asymm 4
8: RT.MIX.MIL.IT.retn.net 54.629ms asymm 4
9: GW-AS41720.retn.net 19.323ms asymm 6
10: no reply
11: no reply
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500 From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 2.4ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 2.2ms | 10% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 19.3ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | ams-ix.retn.net 2001:7f8:1::a500:9002:1 | 14.2ms | 0% | - | NA |
| 6 | RT.MIX.MIL.IT.retn.net 2a02:2d8::57f5:e080 | 36.7ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 7 | GW-AS41720.retn.net 2a02:2d8:1:b81b:232a::1 | 34.2ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 8 | * | - | - | - | |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.065ms pmtu 1500
1: 2a00:8642:42::2 2.095ms
1: 2a00:8642:42::2 1.799ms
2: gw.friends.steffann.nl 2.362ms
3: 2a00:1ca8:1::194 4.138ms
4: 2a03:3f40::10:33 8.329ms
5: ams-ix.retn.net 8.176ms asymm 7
6: RT.MIX.MIL.IT.retn.net 23.486ms
7: GW-AS41720.retn.net 26.926ms asymm 10
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | * | - | 0%* | - | |
| 3 | * | - | - | - | |
| 4 | * | - | - | - | |
| 5 | * | - | - | - | |
| 6 | * | - | 0% | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.031ms pmtu 1500
1: no reply
2: no reply
3: no reply
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | fw1-lju.6connect.com 2607:fae0:a000::2 | 2.2ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | 0%* | - | |
| 3 | 2a03:a100:0:201:1::1 | 0.7ms | 0% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | * | - | 60% | - | |
| 5 | * | - | - | - | |
| 6 | * | - | 0% | - | |
| 7 | * | - | - | - | |
| 8 | navigabene.minap.it 2001:7f8:c5::a504:1720:1 | 20.0ms | 0% | - | NA |
| 9 | * | - | - | - | |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.033ms pmtu 9000
1: fw1-lju.6connect.com 0.540ms
1: fw1-lju.6connect.com 0.445ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 1.110ms
3: 2a03:a100:0:201:1::1 1.161ms
4: 2a03:a100:0:201:1::1 1.140ms pmtu 1500
4: e0-1.core1.lju1.he.net 2.456ms
5: no reply
6: port-channel1.core1.zag2.he.net 4.157ms
7: no reply
8: navigabene-v6.mix-it.net 20.023ms asymm 12
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
Too many hops: pmtu 1500From SLO host (T-2) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 2.2ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 3 | 2a01-260-1-1--9a.core6.t-2.net 2a01:260:1:1::9a | 2.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | hurricane-electric.nikhef.nlsix.net 2001:7f8:13::a500:6939:1 | 42.0ms | 0%* | - | NA |
| 5 | hurricane-electric.nikhef.nlsix.net 2001:7f8:13::a500:6939:1 | 41.8ms | 0% | - | NA |
| 6 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 44.3ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 44.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 35.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 35.5ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 10 | navigabene.minap.it 2001:7f8:c5::a504:1720:1 | 38.9ms | - | - | NA |
| 11 | navigabene-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a5d4:1720:133 | 42.5ms | 0% | - | NA |
| 12 | * | - | - | - | |
| 13 | * | - | 0% | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.087ms pmtu 1500
1: 2a01:261:313:b814::1 0.881ms
2: 2a01:260:1::225 6.298ms
3: 2a01-260-1-1--9a.core6.t-2.net 3.658ms
4: hurricane-electric.nikhef.nlsix.net 38.325ms
5: be1.core2.fra2.he.net 45.439ms
6: be3.core4.fra1.he.net 49.436ms asymm 7
7: be10.core1.zrh2.he.net 56.373ms asymm 8
8: be1.core1.mil2.he.net 40.533ms asymm 7
9: be1.core1.mil2.he.net 38.878ms asymm 7
10: navigabene-v6.mix-it.net 38.818ms asymm 6
11: navigabene.minap.it 43.652ms asymm 6
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500