AS overview
Test target: 2a02:4ea0::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a02:4ea0::/32
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 | ||
2a02:4ea0::1 | prb | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - |
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a02:4ea0::/32 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS201981's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:850:560:27::2 at hop 13 - that router answers ICMPv6 Echo. This is not in AS201981'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 2026-09-22T13:53:39Z
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 | 0.4ms | 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 | 0.6ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2a02:2d8:0:a00e:232a | 11.0ms | 0% | - | |
| 5 | * | - | 0% | - | |
| 6 | * | - | 0% | - | |
| 7 | * | - | 0% | - | |
| 8 | 2001:850:560:27::2 | 21.7ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 9 | 2a02:4ea0::3 | 21.8ms | 0% | AS201981 | MeusburgerGeorgGmbH - Meusburger Georg GmbH & Co KG, AT |
tracepath -6
1?: [LOCALHOST] 0.013ms pmtu 1500
1: _gateway 0.455ms
1: _gateway 0.394ms
2: sox-pn.sox.rs 0.406ms
3: 2001:7f8:1e:8::3d 0.608ms asymm 2
4: ae8-930.RT.IRX.VIE.AT.retn.net 11.234ms asymm 3
5: no reply
6: no reply
7: no reply
8: 2001:850:560:27::2 22.092ms asymm 7
9: 2a02:4ea0::3 22.099ms reached
Resume: pmtu 1500 hops 9 back 6 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 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.6ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-40.cr10.muc02.lwlcom.net 2a00:c380:b200:230::178 | 11.4ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-10.cr10.muc01.lwlcom.net 2a00:c380:b200:230::177 | 11.5ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | * | - | - | - | |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | 2001:938:affe::549:0:2 | 28.6ms | 0% | AS8437 | UTA-AS - Hutchison Drei Austria GmbH, AT |
tracepath -6
1?: [LOCALHOST] 0.023ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.508ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.539ms
2: ae0-2453.cr10.ber01.lwlcom.net 0.912ms
3: ae0-40.cr10.muc02.lwlcom.net 11.403ms
4: ae0-10.cr10.muc01.lwlcom.net 11.569ms
5: no reply
6: no reply
7: no reply
8: 2001:938:affe::549:0:2 30.165ms reached
Resume: pmtu 1500 hops 8 back 13 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 | 0.3ms | 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 | ae0-20.cr10.dus01.lwlcom.net 2a00:c380:b200:230::108 | 0.4ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-90.cr11.dus01.lwlcom.net 2a00:c380:b200:230::222 | 0.7ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-10.cr10.dus06.lwlcom.net 2a00:c380:b200:230::147 | 0.6ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae0-40.cr10.fra06.lwlcom.net 2a00:c380:b200:230::21 | 3.9ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 7 | * | - | 0% | - | |
| 8 | * | - | 0% | - | |
| 9 | * | - | 0% | - | |
| 10 | 2001:850:560:27::2 | 32.5ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 11 | 2a02:4ea0::3 | 32.7ms | 0% | AS201981 | MeusburgerGeorgGmbH - Meusburger Georg GmbH & Co KG, AT |
tracepath -6
1?: [LOCALHOST] 0.013ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.260ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.230ms
2: ae0-101.cr10.dus02.lwlcom.net 0.624ms
3: ae0-40.cr10.dus05.lwlcom.net 0.657ms
4: ae0-90.cr11.dus01.lwlcom.net 0.620ms
5: ae0-30.cr10.dus06.lwlcom.net 1.071ms
6: ae0-40.cr10.fra06.lwlcom.net 4.458ms
7: no reply
8: no reply
9: no reply
10: 2001:850:560:27::2 33.036ms asymm 15
11: 2a02:4ea0::3 32.507ms reached
Resume: pmtu 1500 hops 11 back 14 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 | 0.7ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 1.5ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 3.2ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 2.7ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | * | - | 0% | - | |
| 6 | * | - | 0% | - | |
| 7 | * | - | 0% | - | |
| 8 | 2001:850:560:27::2 | 35.8ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 9 | 2a02:4ea0::3 | 33.1ms | 0% | AS201981 | MeusburgerGeorgGmbH - Meusburger Georg GmbH & Co KG, AT |
tracepath -6
1?: [LOCALHOST] 0.036ms pmtu 1500
1: 2a00:8642:42::2 3.321ms
1: 2a00:8642:42::2 3.120ms
2: gw.friends.steffann.nl 9.022ms
3: 2a00:1ca8:1::194 3.173ms
4: 2a03:3f40::10:41 6.228ms
5: no reply
6: no reply
7: no reply
8: 2001:850:560:27::2 32.076ms asymm 16
9: 2a02:4ea0::3 31.725ms reached
Resume: pmtu 1500 hops 9 back 15 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 | * | - | - | - | |
| 2 | * | - | 0%* | - | |
| 3 | 2a12:d8c0:101f:103::1 | 8.2ms | 60% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | * | - | - | - | |
| 5 | be47.core1.mil2.he.net 2001:470:e:69::2 | 12.6ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | be1.core1.zrh2.he.net 2001:470:e:dd::2 | 14.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be10.core4.fra1.he.net 2001:470:e:153::1 | 20.6ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | 0% | - | |
| 11 | * | - | 0% | - | |
| 12 | 2001:850:560:27::2 | 31.3ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 13 | 2a02:4ea0::3 | 31.4ms | 0% | AS201981 | MeusburgerGeorgGmbH - Meusburger Georg GmbH & Co KG, AT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.031ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 0.934ms
3: 2a12:d8c0:101f:103::1 8.549ms
4: no reply
5: be47.core1.mil2.he.net 13.555ms
6: be1.core1.zrh2.he.net 32.131ms
7: be10.core4.fra1.he.net 20.556ms
8: no reply
9: no reply
10: no reply
11: no reply
12: 2001:850:560:27::2 31.725ms asymm 10
13: 2a02:4ea0::3 31.823ms reached
Resume: pmtu 1500 hops 13 back 9 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 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | 2a00:ee0:1:15::2 | 1.1ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | * | - | 0% | - | |
| 6 | * | - | 0% | - | |
| 7 | * | - | 0% | - | |
| 8 | 2001:850:560:27::2 | 26.7ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 9 | 2a02:4ea0::3 | 26.3ms | 0% | AS201981 | MeusburgerGeorgGmbH - Meusburger Georg GmbH & Co KG, AT |
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 9000
1: fw1-lju.6connect.com 0.718ms
1: fw1-lju.6connect.com 0.657ms
2: no reply
3: no reply
4: 2a00:ee0:1:10::2 1.705ms asymm 3
5: 2a00:ee0:1:15::2 7.915ms pmtu 1500
5: no reply
6: no reply
7: no reply
8: 2001:850:560:27::2 26.771ms asymm 9
9: 2a02:4ea0::3 27.298ms reached
Resume: pmtu 1500 hops 9 back 7 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 | * | - | 0%* | - | |
| 2 | 2a01:260:1::225 | 3.5ms | 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 | 2.4ms | 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 | 2.3ms | - | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | 100ge0-0-0-31.core1.vie1.he.net 2001:470:0:4a8::1 | 10.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | 100ge0-0-0-31.core1.vie1.he.net 2001:470:0:4a8::1 | 12.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be3.core1.prg1.he.net 2001:470:e:a7::1 | 17.1ms | 50% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | * | - | - | - | |
| 9 | * | - | 0% | - | |
| 10 | * | - | 0% | - | |
| 11 | * | - | 0% | - | |
| 12 | 2001:850:560:27::2 | 29.3ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 13 | 2001:850:560:27::2 | 29.4ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
Rate-limited ICMPv6: hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.029ms pmtu 1500
1: 2a01:261:313:b814::1 0.755ms
2: 2a01:260:1::225 3.100ms
3: 2a01-260-1-1--9a.core6.t-2.net 3.147ms
4: 2a01-260-1-1--38.core6.t-2.net 2.136ms asymm 3
5: 100ge0-0-0-31.core1.vie1.he.net 12.927ms
6: 100ge0-0-0-31.core1.vie1.he.net 13.330ms asymm 5
7: be3.core1.prg1.he.net 16.187ms asymm 6
8: be8.core4.fra1.he.net 35.963ms asymm 7
9: no reply
10: no reply
11: no reply
12: 2001:850:560:27::2 31.052ms asymm 8
13: 2001:850:560:27::2 29.342ms asymm 8
14: 2a02:4ea0::3 29.207ms reached
Resume: pmtu 1500 hops 14 back 9