AS overview
Test target: 2001:67c:1111::1 · static prefix probe · address space: PI · prefixes announced: 2
prefix(es): 2001:67c:1111::/48, 2001:67c:1110::/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 | ||
2001:67c:1111::1 | prb | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
VIX / AAIX / SAIX / TIROL-IX / ERA-IX peering
Not an VIX / AAIX / SAIX / TIROL-IX / ERA-IX member, but our traceroute path crosses the VIX / AAIX / SAIX / TIROL-IX / ERA-IX LAN from SRB host (SOX, Belgrade), DE host (Berlin), DE host (Düsseldorf), SLO host (6connect) - reached via an VIX / AAIX / SAIX / TIROL-IX / ERA-IX-resident transit operator.
RPKI & ASPA
0 of 2 prefix(es) covered by a valid ROA, 2 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:67c:1111::/48 | - not-found | no covering VRP | |
2001:67c:1110::/48 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
We probed 70 arbitrary IPv6 address(es) inside AS21406's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:850:570::2 at hop 12 - that router does not answer ICMPv6 Echo. This is not in AS21406'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 2026-09-24T13:28:32Z
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 | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | * | - | 50% | - | |
| 5 | 100ge-ce0-wien-42-route-01.as34347.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:3:4347 | 13.0ms | 0% | - | NA |
| 6 | 2a02:28e8:1:ff40:1:42 | 17.9ms | 0% | - | |
| 7 | 2a02:28e8:1:ff40:1:1 | 19.6ms | 0% | - | |
| 8 | 2a02:28e8:2:3::3 | 19.7ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.009ms pmtu 1500
1: _gateway 0.815ms
1: _gateway 0.598ms
2: sox-pn.sox.rs 0.704ms
3: 2001:7f8:1e:8::3d 0.721ms asymm 2
4: ae8-930.RT.IRX.VIE.AT.retn.net 11.182ms asymm 3
5: 100ge-ce0-wien-42-route-01.as34347.net 13.093ms asymm 3
6: 100ge-ce2-dc1-01-route-02.as34347.net 17.982ms asymm 4
7: 100ge-ce1-dc1-01-route-01.as34347.net 19.723ms asymm 5
8: 2a02:28e8:2:3::3 19.934ms 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
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 | 9.6ms | 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 | retn.bcix.de 2001:7f8:19:1::232a:1 | 10.4ms | 0% | - | NA |
| 4 | RT.IRX.VIE.AT.retn.net 2a02:2d8::57f5:e0af | 22.2ms | 10% | AS9002 | RETN-AS - RETN Limited, GB |
| 5 | 100ge-ce0-wien-42-route-01.as34347.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:3:4347 | 18.8ms | 0% | - | NA |
| 6 | 2a02:28e8:1:ff40:1:42 | 25.3ms | 0% | - | |
| 7 | 2a02:28e8:1:ff40:1:1 | 25.4ms | 0% | - | |
| 8 | 2a02:28e8:2:3::3 | 25.5ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.024ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.412ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.372ms
2: ae0-2453.cr10.ber01.lwlcom.net 0.973ms
3: retn.bcix.de 11.013ms asymm 5
4: RT.IRX.VIE.AT.retn.net 22.325ms asymm 6
5: 100ge-ce0-wien-42-route-01.as34347.net 18.906ms
6: 100ge-ce2-dc1-01-route-02.as34347.net 25.560ms
7: 100ge-ce1-dc1-01-route-01.as34347.net 25.696ms
8: 2a02:28e8:2:3::3 25.790ms
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 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 4.0ms | 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 | 20ge-po10-frankfurt-43-route-01.as34347.net 2001:7f8::862b:0:1 | 4.3ms | 0% | - | NA |
| 7 | 100ge-ce0-wien-42-route-01.as34347.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:3:4347 | 20.1ms | 0% | - | NA |
| 8 | 2a02:28e8:1:ff40:1:42 | 26.8ms | 0% | - | |
| 9 | 2a02:28e8:1:ff40:1:1 | 26.9ms | 0% | - | |
| 10 | 2a02:28e8:2:3::3 | 27.0ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 11 | * | - | 0% | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.024ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.342ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.228ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.232ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.398ms
5: lag8.core1-dus-ix.bb.wiit.network 0.447ms
6: 20ge-po10-frankfurt-43-route-01.as34347.net 4.156ms
7: 100ge-ce0-wien-42-route-01.as34347.net 20.401ms asymm 6
8: 100ge-ce2-dc1-01-route-02.as34347.net 27.174ms asymm 7
9: 100ge-ce1-dc1-01-route-01.as34347.net 27.042ms asymm 8
10: 2a02:28e8:2:3::3 27.304ms asymm 9
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 | 1.2ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | 2001:7f8:1::a503:4347:1 | 24.1ms | 0% | - | NA |
| 5 | 2a02:28e8:1:ff40:1:42 | 29.1ms | 0% | - | |
| 6 | 2a02:28e8:1:ff40:1:1 | 29.0ms | 0% | - | |
| 7 | 2a02:28e8:2:3::3 | 28.8ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.036ms pmtu 1500
1: 2a00:8642:42::2 3.158ms
1: 2a00:8642:42::2 3.402ms
2: gw.friends.steffann.nl 2.714ms
3: no reply
4: 2001:7f8:1::a503:4347:1 23.365ms asymm 5
5: 100ge-ce2-dc1-01-route-02.as34347.net 29.958ms asymm 6
6: 100ge-ce1-dc1-01-route-01.as34347.net 33.384ms asymm 7
7: 2a02:28e8:2:3::3 29.712ms 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
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 | * | - | - | - | |
| 2 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | stadtwerkehallintirol-v6.mix-it.net 2001:7f8:b:100:1d1:a5d3:4347:215 | 9.0ms | 0% | - | NA |
| 5 | 2a02:28e8:1:ff40:85:86 | 12.5ms | 0% | - | |
| 6 | 2a02:28e8:1:ff40:3:85 | 14.3ms | 0% | - | |
| 7 | 2a02:28e8:1:ff40:1:3 | 14.5ms | 0% | - | |
| 8 | 2a02:28e8:1:ff40:1:1 | 14.4ms | 0% | - | |
| 9 | 2a02:28e8:2:3::3 | 14.5ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.024ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 0.647ms
3: 2a12:d8c0:101f:103::1 8.666ms
4: stadtwerkehallintirol-v6.mix-it.net 9.105ms
5: 30ge-po2-bozen-85-route-01.as34347.net 12.941ms
6: 30ge-po20-dc3-03-route-01.as34347.net 14.651ms
7: 100ge-ce1-dc1-01-route-02.as34347.net 14.873ms
8: 100ge-ce1-dc1-01-route-01.as34347.net 14.907ms
9: 2a02:28e8:2:3::3 14.813ms asymm 7
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 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 | * | - | - | - | |
| 3 | 2a00:ee1:800:9::1 | 2.1ms | - | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 4 | 2a00:ee0:1:15::2 | 1.2ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 20ge-po10-frankfurt-43-route-01.as34347.net 2001:7f8::862b:0:1 | 14.8ms | 0% | - | NA |
| 6 | 100ge-ce0-wien-42-route-01.as34347.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:3:4347 | 14.7ms | 0% | - | NA |
| 7 | 2a02:28e8:1:ff40:1:42 | 21.8ms | 0% | - | |
| 8 | 2a02:28e8:1:ff40:1:1 | 21.5ms | 0% | - | |
| 9 | 2a02:28e8:2:3::3 | 21.1ms | 0% | AS34347 | CITYNET-AT-AS - HALLAG Kommunal GmbH, AT |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.014ms pmtu 9000
1: fw1-lju.6connect.com 0.686ms
1: fw1-lju.6connect.com 0.708ms
2: no reply
3: no reply
4: 2a00:ee0:1:15::2 1.413ms asymm 3
5: 2a00:ee0:1:15::2 62.572ms pmtu 1500
5: 20ge-po10-frankfurt-43-route-01.as34347.net 14.608ms asymm 9
6: 100ge-ce0-wien-42-route-01.as34347.net 14.573ms
7: 100ge-ce2-dc1-01-route-02.as34347.net 21.167ms
8: 100ge-ce1-dc1-01-route-01.as34347.net 21.217ms
9: 2a02:28e8:2:3::3 28.960ms
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 | 14.0ms | 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 | 3.5ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | e0-36.core1.lju1.he.net 2001:470:0:578::2 | 8.0ms | 90% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | 100ge0-0-0-5.core1.vie1.he.net 2001:470:0:578::1 | 9.3ms | 80% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | * | - | 50% | - | |
| 7 | * | - | 70% | - | |
| 8 | * | - | 0% | - | |
| 9 | 2001:850:570::2 | 16.7ms | 0% | AS8447 | A1TELEKOM-AT - A1 Telekom Austria AG, AT |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - |
Rate-limited ICMPv6: hop 4, hop 5, hop 6, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 1500
1: no reply
2: 2a01:260:1::225 17.912ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.204ms
4: no reply
5: no reply
6: no reply
7: no reply
8: no reply
9: 2001:850:570::2 17.353ms asymm 8
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