AS overview
Test target: 2001:67c:12bc::11 · via IPv6 Hitlist (responsive) · address space: PI · prefixes announced: 1
prefix(es): 2001:67c:12bc::/48
Targets & per-vantage-point probe results (2 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:12bc::1 | prb | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2001:67c:12bc::11 | hit | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:67c:12bc::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS199249 /48 maxLen 48 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS199249's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:260:1027::2 at hop 17 - that router answers ICMPv6 Echo. This is not in AS199249's announced prefix; operationally it's the AS-edge / peering interface (often on a SIX 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 active test inconclusive: no Echo Reply to 1300-byte probe.
method: ICMPv6 Echo + forged PTB, tested 2026-09-23T10:32:00Z
Failure detail - what to grep in your logs
| vantage | our source | your target | method | result | tested (UTC) |
|---|---|---|---|---|---|
| belgrade | 2a09:ab81::91 | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:32:00Z |
| berlin | 2a06:d1c1:10b::cccc | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:32:00Z |
| duseldorf | 2a06:d1c1:10d::aaaa | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:31:59Z |
| go6lab | 2a00:8642:42::75 | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:32:13Z |
| karsolink | 2a12:d8c0:105a:9001::a154 | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:32:01Z |
| odin | 2607:fae0:a000::42 | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:31:59Z |
| t2 | 2a01:261:313:b814:2a0:98ff:fe5b:13e4 | 2001:67c:12bc::11 | icmp6-echo | no_echo | 2026-09-23T10:32:03Z |
Attempt log (belgrade):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (berlin):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (duseldorf):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (go6lab):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (karsolink):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (odin):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (t2):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ no_tcp: connect failed: timed outtls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
To match the corresponding ICMPv6 packet on your side (host firewall, AS edge, or transit tap), look for our PTBs around the timestamps above:
sudo tcpdump -i any -n -e 'icmp6 and ip6[40] = 2 and (src host 2607:fae0:a000::42 or src host 2a00:8642:42::75 or src host 2a01:261:313:b814:2a0:98ff:fe5b:13e4 or src host 2a06:d1c1:10b::cccc or src host 2a06:d1c1:10d::aaaa or src host 2a09:ab81::91 or src host 2a12:d8c0:105a:9001::a154)'
If you see our PTBs arriving but the destination's TCP/Echo flow does not shrink, the drop is in the destination kernel (cause 3 below). If you don't see them at all, drop is upstream of you (cause 2). If you only see them from some of our source IPs but not others, the drop is path-asymmetric - at least one transit on the differing route is filtering.
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) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 19.4ms
4/4
Echo 1500B (DF) 19.6ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a09:ab81::1 | 0.5ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | sox-pn.sox.rs 2001:7f8:1e:8::3a | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | 2001:7f8:1e:8::3d | 0.4ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2a02:2d8:0:a00e:232a | 12.9ms | 0% | - | |
| 5 | ts6-vix-mb.telekom.si 2001:7f8:30:0:2:1:0:5603 | 27.6ms | 0% | - | NA |
| 6 | 2a00:ee0:36f:1::2 | 30.0ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 7 | 2a00:ee0:36f:1::2 | 29.7ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.010ms pmtu 1500
1: _gateway 0.550ms
1: _gateway 0.522ms
2: sox-pn.sox.rs 0.406ms
3: 2001:7f8:1e:8::3d 0.632ms asymm 2
4: ae8-930.RT.IRX.VIE.AT.retn.net 12.771ms asymm 3
5: ts6-vix-mb.telekom.si 27.932ms asymm 6
6: 2a00:ee0:36f:1::2 40.813ms asymm 7
7: 2a00:ee0:36f:1::2 39.990ms
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Berlin) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 33.4ms
4/4
Echo 1500B (DF) 33.7ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.7ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae3-90.cr10.ham01.lwlcom.net 2a00:c380:b200:230::192 | 4.8ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-50.cr11.ham01.lwlcom.net 2a00:c380:b200:230::45 | 4.7ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | 2a00:c380:f000::4b | 5.2ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae4-2087.dus10.core-backbone.com 2a01:4a0:0:2087::33 | 11.3ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 7 | ae21-2071.fra10.core-backbone.com 2a01:4a0:0:2071::4 | 10.5ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 8 | ae2-2021.fra20.core-backbone.com 2a01:4a0:0:2021::4 | 10.7ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 9 | ae6-2003.nbg20.core-backbone.com 2a01:4a0:0:2003::2 | 12.1ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 10 | ae2-2032.muc20.core-backbone.com 2a01:4a0:0:2032::7 | 14.7ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 11 | ae1-2028.vie10.core-backbone.com 2a01:4a0:0:2028::10 | 20.2ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 12 | 2a01:4a0:1338:115::2 | 31.9ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 13 | 2a01-260-1-1--6.core6.t-2.net 2a01:260:1:1::6 | 32.4ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 14 | 2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5 | 32.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 15 | 2a01-260-1027--2.link6.t-2.net 2a01:260:1027::2 | 34.0ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 16 | * | - | 0% | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.020ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.514ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.456ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.143ms
3: ae3-90.cr10.ham01.lwlcom.net 5.334ms
4: ae0-50.cr11.ham01.lwlcom.net 4.923ms
5: 2a00:c380:f000::4b 5.664ms asymm 4
6: ae4-2087.dus10.core-backbone.com 11.455ms asymm 5
7: ae21-2071.fra10.core-backbone.com 10.911ms asymm 5
8: ae2-2021.fra20.core-backbone.com 10.802ms asymm 4
9: ae6-2003.nbg20.core-backbone.com 12.291ms asymm 6
10: ae2-2032.muc20.core-backbone.com 14.806ms asymm 7
11: ae1-2028.vie10.core-backbone.com 20.487ms asymm 8
12: 2a01:4a0:1338:115::2 32.596ms
13: 2a01-260-1-1--6.core6.t-2.net 32.962ms asymm 12
14: 2a01-260-1-1--5.core6.t-2.net 32.847ms asymm 13
15: 2a01-260-1027--2.link6.t-2.net 45.430ms asymm 14
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Düsseldorf) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 29.2ms
4/4
Echo 1500B (DF) 29.3ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | ipv6.decix-dusseldorf.core1.dus1.he.net 2001:7f8:9e::1b1b:0:1 | 7.4ms | 0% | - | NA |
| 3 | * | - | - | - | |
| 4 | be6.core2.ams2.he.net 2001:470:0:61c::2 | 9.3ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | t-2.interxionfra11.nlsix.net 2001:7f8:13::a503:4779:1 | 27.7ms | 0% | - | NA |
| 6 | 2a01-260-1-1--16.core6.t-2.net 2a01:260:1:1::16 | 28.9ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 7 | 2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5 | 28.4ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 8 | 2a01-260-1027--2.link6.t-2.net 2a01:260:1027::2 | 29.6ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.431ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.406ms
2: ipv6.decix-dusseldorf.core1.dus1.he.net 6.248ms asymm 3
3: no reply
4: be6.core2.ams2.he.net 11.068ms asymm 6
5: t-2.interxionfra11.nlsix.net 28.613ms asymm 11
6: 2a01-260-1-1--16.core6.t-2.net 35.833ms asymm 11
7: 2a01-260-1-1--5.core6.t-2.net 29.306ms asymm 12
8: 2a01-260-1027--2.link6.t-2.net 45.014ms asymm 13
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From NL host (go6lab) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 40.1ms
4/4
Echo 1500B (DF) 39.1ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 1.1ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 3.4ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 8.3ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 6.1ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | t-2.interxionfra11.nlsix.net 2001:7f8:13::a503:4779:1 | 37.0ms | 0% | - | NA |
| 6 | 2a01-260-1-1--16.core6.t-2.net 2a01:260:1:1::16 | 39.5ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 7 | 2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5 | 43.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 8 | 2a01-260-1027--2.link6.t-2.net 2a01:260:1027::2 | 37.5ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.019ms pmtu 1500
1: 2a00:8642:42::2 1.825ms
1: 2a00:8642:42::2 1.038ms
2: no reply
3: 2a00:1ca8:1::194 6.679ms
4: 2a03:3f40::10:33 7.519ms
5: t-2.interxionfra11.nlsix.net 42.278ms asymm 6
6: 2a01-260-1-1--16.core6.t-2.net 33.571ms asymm 7
7: 2a01-260-1-1--5.core6.t-2.net 45.816ms asymm 8
8: 2a01-260-1027--2.link6.t-2.net 50.457ms asymm 9
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From ITA host (Karsolink) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 45.6ms
4/4
Echo 1500B (DF) 70.8ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | - | - | |
| 2 | * | - | 0%* | - | |
| 3 | * | - | 90% | - | |
| 4 | * | - | - | - | |
| 5 | 100ge0-0-0-20.core1.vie1.he.net 2001:470:0:414::1 | 22.1ms | 10% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | 2001:7f8:30:0:2:1:3:4779 | 19.2ms | 0% | - | NA |
| 7 | 2a01-260-1-1--6.core6.t-2.net 2a01:260:1:1::6 | 44.6ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 8 | 2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5 | 44.0ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 9 | 2a01-260-1027--2.link6.t-2.net 2a01:260:1027::2 | 44.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
Rate-limited ICMPv6: hop 3, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: no reply
2: no reply
3: 2a12:d8c0:101f:6::1 10.064ms
4: no reply
5: 100ge0-0-0-20.core1.vie1.he.net 23.045ms
6: 2001:7f8:30:0:2:1:3:4779 19.770ms
7: 2a01-260-1-1--6.core6.t-2.net 45.837ms asymm 11
8: 2a01-260-1-1--5.core6.t-2.net 44.008ms asymm 12
9: 2a01-260-1027--2.link6.t-2.net 55.560ms asymm 13
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From SLO host (6connect) open
filter likely at: (none) · min PMTU on path: 9000
4/4
Echo small (56B) 2.5ms
4/4
Echo 1500B (DF) 2.8ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | fw1-lju.6connect.com 2607:fae0:a000::2 | 0.3ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | 2a00:ee1:800:9::1 | 2.0ms | 40% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 4 | 2a00:ee0:36f:1::2 | 3.1ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a00:ee0:36f:1::2 | 2.5ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 6 | * | - | 0% | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.027ms pmtu 9000
1: fw1-lju.6connect.com 0.833ms
1: fw1-lju.6connect.com 0.598ms
2: no reply
3: 2a00:ee1:800:9::1 2.118ms
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
Too many hops: pmtu 9000
Resume: pmtu 9000 From SLO host (T-2) open
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 3.4ms
4/4
Echo 1500B (DF) 3.8ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 13.3ms | 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 | 11.8ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--63.core6.t-2.net 2a01:260:1:1::63 | 12.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | 2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5 | 13.9ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 6 | 2a01-260-1027--2.link6.t-2.net 2a01:260:1027::2 | 14.3ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 7 | * | - | 0% | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: 2a01:261:313:b814::1 0.883ms
2: 2a01:260:1::225 2.313ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.506ms
4: 2a01-260-1-1--16.core6.t-2.net 3.538ms
5: 2a01-260-1-1--5.core6.t-2.net 2.912ms
6: 2a01-260-1027--2.link6.t-2.net 15.454ms
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
Too many hops: pmtu 1500
Resume: pmtu 1500