AS overview
Test target: 2a07:1ec0:829::a5 · dns.topix.it · address space: mixed · prefixes announced: 1
prefix(es): 2a07:1ec0::/29
Targets & per-vantage-point probe results (4 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 | ||
2a07:1ec0:829::a20top-ix.org | whois | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ | ✓ | ✓ | open | open | ✓ |
2a07:1ec0:829::a5dns.topix.it | NS | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
2a07:1ec0:829::a6dns1.topix.it | NS | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
2a07:1ec0:829::a7dns2.topix.it | NS | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a07:1ec0::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS41364 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 34 arbitrary IPv6 address(es) inside AS41364's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:4ba0:ffe9:da::2 at hop 11 - that router answers ICMPv6 Echo. This is not in AS41364'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 2026-09-23T12:05:26Z
tracepath6 per-hop PMTU drilldown
For each target where Type 2 verdicts disagreed across vantages, tracepath -6 ran from every vantage to capture per-hop PMTU evolution along that vantage's actual forward path. A pmtu change entry on a hop means that hop's router generated a PTB and we observed the shrink; absence of any change combined with a not_honored verdict suggests a router somewhere downstream is silently dropping >MTU packets (an RFC 4890 violation) rather than sending a PTB.
Target 2a07:1ec0:829::a20
amsterdam - verdict ?
(no hops captured)
belgrade - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2001:7f8:1e:8::3a | |
| 3 | 2001:470:1:6e5::1 | |
| 4 | 2001:470:0:33f::2 | |
| 5 | 2001:470:0:412::1 | |
| 6 | <span class='muted'>no reply</span> | |
| 7 | <span class='muted'>no reply</span> | |
| 8 | 2a07:1ec0:829::a20 |
berlin - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a06:d1c0::dead:beef:401 | |
| 3 | 2001:4ba0:92f4:3::1 | |
| 4 | <span class='muted'>no reply</span> | |
| 5 | 2001:4ba0:ffe9:109::2 | |
| 6 | 2001:4ba0:ffe9:8a::2 | |
| 7 | 2001:4ba0:ffe9:103e::1 | |
| 8 | 2001:4ba0:ffe9:103b::1 | |
| 9 | 2001:4ba0:ffe9:b8:: | |
| 10 | 2001:4ba0:ffe9:a7::1 | |
| 11 | 2001:4ba0:ffe9:da::2 | |
| 12 | <span class='muted'>no reply</span> | |
| 13 | 2a07:1ec0:829::a20 |
duseldorf - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2001:4ba0:92f4:3::1 | |
| 3 | <span class='muted'>no reply</span> | |
| 4 | 2001:4ba0:ffe9:109::2 | |
| 5 | 2001:4ba0:ffe9:8a::2 | |
| 6 | 2001:4ba0:ffe9:103e::1 | |
| 7 | 2001:4ba0:ffe9:103b::1 | |
| 8 | 2001:4ba0:ffe9:b8:: | |
| 9 | 2001:4ba0:ffe9:a7::1 | |
| 10 | 2001:4ba0:ffe9:da::2 | |
| 11 | <span class='muted'>no reply</span> | |
| 12 | 2a07:1ec0:829::a20 |
go6lab - verdict not_honored
verdict = not_honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a00:8642:1000:f000::1 | |
| 3 | 2a00:1ca8:1::194 | |
| 4 | 2a03:3f40::10:33 | |
| 5 | 2001:7f8:1::a501:2779:1 | |
| 6 | 2001:1418:1::10e2 | |
| 7 | <span class='muted'>no reply</span> | |
| 8 | 2a07:1ec0:829::a20 |
karsolink - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a12:d8c0:109f:121::a1 | |
| 3 | 2a12:d8c0:109f:106::a2 | |
| 4 | <span class='muted'>no reply</span> | |
| 5 | 2a07:1ec0:829::a20 |
odin - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2607:fae0:a000:2::2 | |
| 3 | 2a03:a100:0:201:1::1 | |
| 4 | 2a03:a100:0:201:1::1 | |
| 5 | <span class='muted'>no reply</span> | |
| 6 | 2001:470:0:2ea::2 | |
| 7 | <span class='muted'>no reply</span> | |
| 8 | <span class='muted'>no reply</span> | |
| 9 | 2a07:1ec0:829::a20 |
t2 - verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a01:260:1::225 | |
| 3 | 2a01:260:1:1::9a | |
| 4 | 2a01:260:1:1::39 | |
| 5 | 2001:470:e:43::2 | |
| 6 | 2001:470:e:5a::2 | |
| 7 | 2001:470:e:5a::2 | |
| 8 | 2001:470:e:153::2 | |
| 9 | 2001:470:e:dd::1 | |
| 10 | <span class='muted'>no reply</span> | |
| 11 | 2a07:1ec0:829::a20 |
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 | 0.3ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | sox-pn.sox.rs 2001:7f8:1e:8::3a | 0.2ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | e0-33.core2.beg1.he.net 2001:470:1:6e5::1 | 1.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 4 | e0-34.core2.bts1.he.net 2001:470:0:33f::2 | 8.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | 100ge0-0-0-2.core1.vie1.he.net 2001:470:0:412::1 | 10.5ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | * | - | - | - | |
| 7 | * | - | 50% | - | |
| 8 | 2a07:1ec0:829::a5 | 22.2ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
Rate-limited ICMPv6: hop 5, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.013ms pmtu 1500
1: _gateway 0.381ms
1: _gateway 0.354ms
2: sox-pn.sox.rs 0.423ms
3: e0-33.core2.beg1.he.net 1.502ms
4: e0-34.core2.bts1.he.net 8.546ms
5: 100ge0-0-0-2.core1.vie1.he.net 10.513ms
6: no reply
7: no reply
8: 2a07:1ec0:829::a5 22.517ms reached
Resume: pmtu 1500 hops 8 back 8 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 | 0.3ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | xe-0-0-12-2412.gw01.dus01.as59645.net 2a06:d1c0::dead:beef:401 | 8.9ms | 0% | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 9.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 4 | lag13.agr3-dus3.bb.wiit.network 2001:4ba0:ffe9:7d::1 | 56.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2 | 8.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | lag0-vl1011.core1-fra-ix.bb.wiit.network 2001:4ba0:ffe9:8a::2 | 12.5ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 7 | lag0-vl1001.core1-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103e::1 | 15.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 8 | lag0-vl6.core2-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103b::1 | 15.1ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 9 | 2001:4ba0:ffe9:b8 | 23.4ms | 0% | - | |
| 10 | lag0-vl1009.core1-muc-eq3.bb.wiit.network 2001:4ba0:ffe9:a7::1 | 18.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 11 | lag0-vl1001.core1-pda-vsix.bb.wiit.network 2001:4ba0:ffe9:da::2 | 28.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 12 | * | - | - | - | |
| 13 | 2a07:1ec0:829::a5 | 30.3ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
tracepath -6
1?: [LOCALHOST] 0.031ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 22.253ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.495ms
2: xe-0-0-12-2412.gw01.dus01.as59645.net 8.637ms
3: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 14.415ms
4: no reply
5: lag11.core3-dus1.bb.wiit.network 8.480ms
6: lag0-vl1011.core1-fra-ix.bb.wiit.network 12.838ms
7: lag0-vl1001.core1-nbg-ncd.bb.wiit.network 15.259ms
8: lag0-vl6.core2-nbg-ncd.bb.wiit.network 15.187ms
9: lag0-vl1006.core2-muc2.bb.wiit.network 17.963ms
10: lag0-vl1009.core1-muc-eq3.bb.wiit.network 18.218ms
11: lag0-vl1001.core1-pda-vsix.bb.wiit.network 28.581ms
12: no reply
13: 2a07:1ec0:829::a5 30.802ms reached
Resume: pmtu 1500 hops 13 back 10 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 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 1.5ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 3 | lag10-h5f01.agr4-dus1.bb.wiit.network 2001:4ba0:ffe9:7c::1 | 7.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 4 | lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag0-vl1011.core1-fra-ix.bb.wiit.network 2001:4ba0:ffe9:8a::2 | 4.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | lag0-vl1001.core1-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103e::1 | 6.9ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 7 | lag0-vl6.core2-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103b::1 | 6.9ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 8 | 2001:4ba0:ffe9:b8 | 9.7ms | 0% | - | |
| 9 | lag0-vl1009.core1-muc-eq3.bb.wiit.network 2001:4ba0:ffe9:a7::1 | 9.7ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 10 | lag0-vl1001.core1-pda-vsix.bb.wiit.network 2001:4ba0:ffe9:da::2 | 20.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 11 | * | - | - | - | |
| 12 | 2a07:1ec0:829::a5 | 22.3ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.390ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.274ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.240ms
3: no reply
4: lag11.core3-dus1.bb.wiit.network 0.455ms
5: lag0-vl1011.core1-fra-ix.bb.wiit.network 4.547ms
6: lag0-vl1001.core1-nbg-ncd.bb.wiit.network 7.256ms
7: lag0-vl6.core2-nbg-ncd.bb.wiit.network 7.443ms
8: lag0-vl1006.core2-muc2.bb.wiit.network 17.526ms
9: lag0-vl1009.core1-muc-eq3.bb.wiit.network 10.204ms
10: lag0-vl1001.core1-pda-vsix.bb.wiit.network 20.196ms
11: no reply
12: 2a07:1ec0:829::a5 22.394ms reached
Resume: pmtu 1500 hops 12 back 9 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 | 1.2ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 14.4ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 6.0ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | ams-ix.ipv6.itgate.net 2001:7f8:1::a501:2779:1 | 6.0ms | 0% | - | NA |
| 6 | if-0-2-0-1.Muttley-Monster.TRN.ipv6.itgate.net 2001:1418:1::10e2 | 23.9ms | 0% | AS12779 | ITGATE - IT.Gate S.p.A., IT |
| 7 | * | - | - | - | |
| 8 | 2a07:1ec0:829::a5 | 29.8ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
tracepath -6
1?: [LOCALHOST] 0.064ms pmtu 1500
1: 2a00:8642:42::2 2.533ms
1: 2a00:8642:42::2 4.390ms
2: gw.friends.steffann.nl 3.525ms
3: 2a00:1ca8:1::194 4.236ms
4: 2a03:3f40::10:33 7.896ms
5: ams-ix.ipv6.itgate.net 7.682ms asymm 3
6: if-0-2-0-1.Muttley-Monster.TRN.ipv6.itgate.net 23.964ms asymm 4
7: no reply
8: 2a07:1ec0:829::a5 28.994ms reached
Resume: pmtu 1500 hops 8 back 8 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 | karsolink-01.net.karsolink.com 2a12:d8c0:105a:9001::1 | 0.2ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 2 | 2a12:d8c0:109f:121::a1 | 0.3ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:109f:106::a2 | 3.3ms | 90% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | * | - | 90% | - | |
| 5 | 2a07:1ec0:829::a5 | 9.6ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
Rate-limited ICMPv6: hop 3, hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: no reply
2: no reply
3: 2a12:d8c0:109f:106::a2 3.603ms
4: 2001:7f8:5f:ffff::33 10.761ms
5: 2a07:1ec0:829::a5 10.038ms reached
Resume: pmtu 1500 hops 5 back 5 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 | 0.4ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | 0%* | - | |
| 3 | 2a03:a100:0:201:1::1 | 1.1ms | 0% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | * | - | 0% | - | |
| 5 | * | - | - | - | |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 4.0ms | 40% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | 2a07:1ec0:829::a5 | 15.1ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.019ms pmtu 9000
1: fw1-lju.6connect.com 0.381ms
1: fw1-lju.6connect.com 0.671ms
2: no reply
3: 2a03:a100:0:201:1::1 1.073ms
4: 2a03:a100:0:201:1::1 1.023ms pmtu 1500
4: no reply
5: no reply
6: port-channel1.core1.zag2.he.net 4.223ms
7: no reply
8: no reply
9: 2a07:1ec0:829::a5 14.990ms reached
Resume: pmtu 1500 hops 9 back 9 From 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 | 2a01:261:313:b814::1 | 0.4ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 2 | 2a01:260:1::225 | 1.9ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 3 | 2a01-260-1-1--9c.core6.t-2.net 2a01:260:1:1::9c | 2.2ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--39.core6.t-2.net 2a01:260:1:1::39 | 2.3ms | 0% | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | be1.core2.fra2.he.net 2001:470:e:43::2 | 37.8ms | 40% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | be7.core2.fra2.he.net 2001:470:e:18::2 | 38.4ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 40.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 37.3ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 37.1ms | - | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 10 | * | - | 20% | - | |
| 11 | 2a07:1ec0:829::a5 | 34.2ms | 0% | AS41364 | TOP-IX_DP - CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT, IT |
Rate-limited ICMPv6: hop 5, hop 6, hop 10 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: no reply
2: 2a01:260:1::225 2.291ms
3: 2a01-260-1-1--9a.core6.t-2.net 3.131ms
4: hurricane-electric.nikhef.nlsix.net 38.472ms
5: hurricane-electric.nikhef.nlsix.net 36.310ms asymm 4
6: be7.core2.fra2.he.net 38.282ms asymm 5
7: be3.core4.fra1.he.net 45.718ms
8: be10.core1.zrh2.he.net 49.488ms
9: be1.core1.mil2.he.net 36.771ms asymm 7
10: no reply
11: 2a07:1ec0:829::a5 38.956ms reached
Resume: pmtu 1500 hops 11 back 8