AS overview
Test target: 2001:678:18c:64::5353 · ns00.z-ix.net · address space: unknown · prefixes announced: 1
prefix(es): 2001:678:18c::/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 | ||
2001:678:18c:64::5353ns00.z-ix.net | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:678:18c::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS202928 /48 maxLen 48 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS202928's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:190:1703::2 at hop 11 - that router answers ICMPv6 Echo. This is not in AS202928'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 2026-09-24T13:28:23Z
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 | 0.4ms | 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 | 40% | - | |
| 5 | GW-Salzburg.retn.net 2a02:2d8:0:a009:232a::1 | 16.9ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 6 | conasr002-fra.infra.conova.net 2001:7f8::151c:0:1 | 26.9ms | 0% | - | NA |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 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] 0.012ms pmtu 1500
1: _gateway 0.559ms
1: _gateway 0.322ms
2: sox-pn.sox.rs 0.619ms
3: 2001:7f8:1e:8::3d 0.620ms asymm 2
4: ae8-930.RT.IRX.VIE.AT.retn.net 12.954ms asymm 3
5: GW-Salzburg.retn.net 18.808ms asymm 4
6: conasr002-fra.infra.conova.net 29.025ms asymm 5
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 | 0.2ms | 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 | ae3-90.cr10.ham01.lwlcom.net 2a00:c380:b200:230::192 | 4.9ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-50.cr11.ham01.lwlcom.net 2a00:c380:b200:230::45 | 5.0ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | 2a00:c380:f000::4b | 5.2ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae6-2082.ams10.core-backbone.com 2a01:4a0:0:2082::17 | 10.3ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 7 | 2a01:4a0:1338:110::2 | 25.7ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.654ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.594ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.128ms
3: ae3-90.cr10.ham01.lwlcom.net 5.141ms
4: ae0-50.cr11.ham01.lwlcom.net 5.122ms
5: 2a00:c380:f000::4b 5.580ms asymm 4
6: ae6-2082.ams10.core-backbone.com 10.895ms asymm 5
7: 2a01:4a0:1338:110::2 26.063ms asymm 8
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 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 7.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 3 | * | - | - | - | |
| 4 | lag11.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:115::3 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag2.core1-dus-ix.bb.wiit.network 2001:4ba0:ffe9:4f::1 | 0.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | conasr002-fra.infra.conova.net 2001:7f8::151c:0:1 | 4.3ms | 0% | - | NA |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.023ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 1.184ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.330ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.540ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.475ms
5: lag2.core1-dus-ix.bb.wiit.network 0.545ms
6: conasr002-fra.infra.conova.net 4.467ms
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 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 | 1.5ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 4.2ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 3.1ms | 10% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 4.3ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | ams-ix.retn.net 2001:7f8:1::a500:9002:1 | 6.0ms | 0% | - | NA |
| 6 | RT.IRX.VIE.AT.retn.net 2a02:2d8::57f5:e0af | 23.0ms | 20% | AS9002 | RETN-AS - RETN Limited, GB |
| 7 | GW-Salzburg.retn.net 2a02:2d8:0:a009:232a::1 | 30.7ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 8 | conasr002-fra.infra.conova.net 2001:7f8::151c:0:1 | 40.4ms | 0% | - | NA |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | 0% | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
Rate-limited ICMPv6: hop 3, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.042ms pmtu 1500
1: 2a00:8642:42::2 1.596ms
1: 2a00:8642:42::2 1.103ms
2: gw.friends.steffann.nl 4.292ms
3: 2a00:1ca8:1::194 3.117ms
4: 2a03:3f40::10:33 6.207ms
5: ams-ix.retn.net 6.452ms asymm 7
6: RT.IRX.VIE.AT.retn.net 23.626ms asymm 11
7: GW-Salzburg.retn.net 31.338ms
8: conasr002-fra.infra.conova.net 40.521ms asymm 6
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 | karsolink-01.net.karsolink.com 2a12:d8c0:105a:9001::1 | 0.3ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 2 | 2a12:d8c0:109f:121::a1 | 0.3ms | - | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | * | - | - | - | |
| 4 | * | - | - | - | |
| 5 | be47.core1.mil2.he.net 2001:470:e:69::2 | 11.0ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | be1.core1.zrh2.he.net 2001:470:e:dd::2 | 14.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | be1.core3.zrh3.he.net 2001:470:0:7e0::2 | 13.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | * | - | - | - | |
| 10 | ip6-ae2-0-r02.tnz2.sbg.nextlayer.net 2a01:190:1764:801e::1 | 23.7ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 11 | 2a01:190:1703::2 | 34.3ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 12 | * | - | - | - | |
| 13 | * | - | 0% | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.029ms pmtu 1500
1: no reply
2: no reply
3: no reply
4: no reply
5: be47.core1.mil2.he.net 13.616ms
6: be1.core1.zrh2.he.net 16.133ms
7: no reply
8: be1.core3.zrh3.he.net 16.341ms
9: no reply
10: ip6-ae1-0-r02.tnz2.sbg.nextlayer.net 24.190ms
11: 2a01:190:1703::2 34.467ms asymm 7
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 | 0.4ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | 40% | - | |
| 4 | 2a00:ee0:1:15::2 | 1.5ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | conasr002-fra.infra.conova.net 2001:7f8::151c:0:1 | 14.3ms | 0% | - | NA |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 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] 0.026ms pmtu 9000
1: fw1-lju.6connect.com 0.699ms
1: fw1-lju.6connect.com 0.568ms
2: no reply
3: 2a00:ee1:800:9::1 2.665ms
4: 2a00:ee0:1:10::2 1.499ms asymm 3
5: 2a00:ee0:1:10::2 38.103ms pmtu 1500
5: conasr002-fra.infra.conova.net 14.510ms asymm 9
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 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 4.1ms | 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 | 1.6ms | 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 | 3.0ms | 0% | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | 2a01:4a0:1338:110::2 | 32.9ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 6 | 2a01:4a0:1338:110::2 | 28.9ms | - | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 7 | * | - | - | - | |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: no reply
2: 2a01:260:1::225 3.801ms
3: 2a01-260-1-1--9c.core6.t-2.net 3.206ms
4: 2a01-260-1-1--39.core6.t-2.net 2.799ms asymm 3
5: core_backbone.nlsix.net 28.304ms asymm 10
6: 2a01:4a0:1338:110::2 32.516ms asymm 11
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