AS overview
Test target: 2a07:22c1:31::4 · via IPv6 Hitlist (responsive) · address space: unknown · prefixes announced: 1
prefix(es): 2a07:22c1:31::/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 | ||
2a07:22c1:31::1 | prb | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a07:22c1:31::4 | hit | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a07:22c1:31::/48 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS212405's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a0c:9a40:1030::326 at hop 26 - that router answers ICMPv6 Echo. This is not in AS212405'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 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 2026-09-23T10:36:03Z
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 | sox-pn.sox.rs 2001:7f8:1e:8::3a | 0.4ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | 2001:7f8:1e:8::3d | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2001:67c:128c::699 | 16.9ms | 0% | - | NA |
| 5 | * | - | 0% | - | |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.016ms pmtu 1500
1: _gateway 0.387ms
1: _gateway 0.474ms
2: sox-pn.sox.rs 0.658ms
3: 2001:7f8:1e:8::3d 0.704ms asymm 2
4: 2001:67c:128c::699 18.078ms
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
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 | 0.2ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.8ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-150.cr10.fra01.lwlcom.net 2a00:c380:b200:230::174 | 9.9ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-100.cr10.fra02.lwlcom.net 2a00:c380:b200:230::215 | 10.3ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-10.cr10.fra06.lwlcom.net 2a00:c380:b200:230::236 | 10.1ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | 2a0c:9a40:1096::1 | 10.0ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 7 | 2a0c:9a40:1001::1 | 10.2ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.051ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.738ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.439ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.026ms
3: ae0-150.cr10.fra01.lwlcom.net 10.294ms asymm 7
4: ae0-100.cr10.fra02.lwlcom.net 10.544ms asymm 8
5: ae0-10.cr10.fra06.lwlcom.net 10.205ms asymm 7
6: 2a0c:9a40:1096::1 10.287ms asymm 8
7: 2a0c:9a40:1001::1 10.505ms asymm 3
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
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 | 2a0c:9a40:1001::1 | 4.3ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 3 | * | - | 0% | - | |
| 4 | * | - | - | - | |
| 5 | * | - | - | - | |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.018ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.313ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.285ms
2: 2a0c:9a40:1001::1 4.435ms
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
18: 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 | 1.4ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 2.7ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a0c:9a40:1071::1 | 3.2ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 4 | 2a0c:9a40:1001::1 | 14.2ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 5 | * | - | 0% | - | |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.039ms pmtu 1500
1: 2a00:8642:42::2 2.084ms
1: 2a00:8642:42::2 2.515ms
2: no reply
3: 2a0c:9a40:1071::1 5.511ms
4: 2a0c:9a40:1001::1 13.125ms asymm 5
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
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 | * | - | 0% | - | |
| 4 | interlink-AS5405.mix-it.net 2001:7f8:b:100:1d1:a5d0:5405:221 | 8.6ms | 0% | - | NA |
| 5 | r2-zrh1-ch.as5405.net 2a11:4140::5d | 18.7ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 6 | r3-fra1-de.as5405.net 2a11:4140::6 | 18.6ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 7 | r7-fra1-de.as5405.net 2a11:4140::4c | 18.4ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 8 | r4-fra2-de.as5405.net 2a11:4140::b | 18.7ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 9 | r2-fra2-de.as5405.net 2a11:4140::9 | 18.5ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 10 | 2a0c:9a40:1001::1 | 18.9ms | 10% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 11 | * | - | 0% | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
Rate-limited ICMPv6: hop 10 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.039ms pmtu 1500
1: karsolink-01.net.karsolink.com 1.006ms
1: karsolink-01.net.karsolink.com 0.779ms
2: no reply
3: 2a12:d8c0:101f:103::1 9.248ms
4: interlink-as5405.mix-it.net 9.985ms asymm 5
5: r2-zrh1-ch.as5405.net 19.073ms asymm 14
6: r3-fra1-de.as5405.net 19.353ms asymm 13
7: r7-fra1-de.as5405.net 18.837ms asymm 12
8: r4-fra2-de.as5405.net 19.088ms asymm 11
9: r2-fra2-de.as5405.net 19.703ms asymm 10
10: 2a0c:9a40:1001::1 19.634ms 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
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 | 0.3ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:ee1:800:9::1 | 1.7ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 4 | 2a00:ee0:1:10::2 | 1.3ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a0c:9a40:1001::1 | 18.9ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 6 | * | - | 0% | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.023ms pmtu 9000
1: fw1-lju.6connect.com 0.670ms
1: fw1-lju.6connect.com 0.643ms
2: no reply
3: 2a00:ee1:800:9::1 2.345ms
4: 2a00:ee0:1:15::2 1.455ms asymm 3
5: 2a00:ee0:1:10::2 1.740ms pmtu 1500
5: 2a0c:9a40:1001::1 22.008ms asymm 11
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 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 | * | - | 0%* | - | |
| 2 | 2a01:260:1::225 | 5.0ms | 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 | 2.3ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--38.core6.t-2.net 2a01:260:1:1::38 | 2.1ms | - | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 9.7ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 9.3ms | - | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | 0% | - | |
| 8 | be1.core1.zrh2.he.net 2001:470:e:dd::2 | 31.3ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | be1.core1.zrh2.he.net 2001:470:e:dd::2 | 31.6ms | - | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 10 | 2a0c:9a40:1092::1 | 24.7ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 11 | 2a0c:9a40:1092::1 | 24.6ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 12 | 2a0c:9a40:1001::1 | 22.1ms | 0% | AS34927 | iFog-GmbH - iFog GmbH, CH |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: 2a01:261:313:b814::1 0.836ms
1: 2a01:261:313:b814::1 1.206ms
2: 2a01:260:1::225 2.433ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.343ms
4: 2a01-260-1-1--38.core6.t-2.net 3.085ms asymm 3
5: port-channel1.core1.zag2.he.net 10.374ms asymm 7
6: port-channel1.core1.zag2.he.net 10.037ms asymm 7
7: no reply
8: be1.core1.zrh2.he.net 31.427ms
9: be1.core1.zrh2.he.net 31.360ms asymm 8
10: 2a0c:9a40:1092::1 25.377ms asymm 6
11: 2a0c:9a40:1001::1 22.816ms asymm 4
12: 2a0c:9a40:1001::1 23.266ms asymm 4
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500