AS overview
Test target: 2a06:8cc0::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a06:8cc0::/29
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 | ||
2a06:8cc0::1 | prb | ✓ | ✓ | open | refused | ✓ | ✓ | ✓ | open | refused | ✓ | ✓ | ✓ | open | refused | ✓ | ✓ | ✓ | open | ? | ✓ | ✓ | ✓ | open | refused | - | ✓ | ✓ | open | refused | ✓ | ✓ | ✓ | open | refused | ✓ |
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering
Not an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO member, but our traceroute path crosses the MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO LAN from SLO host (6connect), SLO host (T-2) - reached via an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO-resident transit operator.
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:8cc0::/29 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS203073's announced prefix replied during the random-target probe. Hop(s): 2a06:8cc0::1. These are candidate targets for direct testing.
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 2026-09-23T12:05:12Z
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
4/4
Echo small (56B) 41.1ms
4/4
Echo 1500B (DF) 41.0ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | 2001:7f8:1e:8::3d | 0.4ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2001:67c:128c::699 | 18.1ms | 0% | - | NA |
| 5 | 2a06:8cc0::1 | 41.1ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: _gateway 0.505ms
1: _gateway 0.526ms
2: sox-pn.sox.rs 0.653ms
3: 2001:7f8:1e:8::3d 0.703ms asymm 2
4: 2001:67c:128c::699 17.928ms
5: 2a06:8cc0::1 43.838ms reached
Resume: pmtu 1500 hops 5 back 7 From DE host (Berlin) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 19.0ms
4/4
Echo 1500B (DF) 19.0ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | 0.7ms | 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 | ae6-3257.cr5-fra2.ip6.gtt.net 2001:668:0:3:ffff:1:0:3d5d | 9.4ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 5 | 2001:668:0:2:ffff:0:5995:8aa6 | 17.8ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 6 | 2001:668:0:3:ffff:1:0:2d22 | 18.8ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | 2a06:8cc0::1 | 18.8ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.021ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.627ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.471ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.148ms
3: ae0-150.cr10.fra01.lwlcom.net 10.248ms asymm 7
4: ae6-3257.cr5-fra2.ip6.gtt.net 9.806ms asymm 9
5: 2001:668:0:2:ffff:0:5995:8aa6 18.295ms asymm 9
6: 2001:668:0:3:ffff:1:0:2d22 19.462ms asymm 11
7: no reply
8: no reply
9: 2a06:8cc0::1 19.238ms reached
Resume: pmtu 1500 hops 9 back 14 From DE host (Düsseldorf) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 20.4ms
4/4
Echo 1500B (DF) 20.4ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | 1.2ms | 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 | 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 | 6.8ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 7 | lag0-vl6.core2-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103b::1 | 7.1ms | 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 | 20.5ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 11 | lag0-vl1001.core1-mil-mix.bb.wiit.network 2001:4ba0:ffe9:db::2 | 20.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 12 | lag0-vl5.core3-mil-irid.bb.wiit.network 2001:4ba0:ffe9:9a::2 | 20.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 13 | servereasy.minap.it 2001:7f8:c5::a506:798:1 | 20.0ms | 0% | AS60798 | Servereasy s.r.l. |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | 2a06:8cc0::1 | 20.2ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.027ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.313ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.263ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.759ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.380ms
5: lag0-vl1011.core1-fra-ix.bb.wiit.network 4.568ms
6: lag0-vl1001.core1-nbg-ncd.bb.wiit.network 6.998ms
7: lag0-vl6.core2-nbg-ncd.bb.wiit.network 6.976ms
8: lag0-vl1006.core2-muc2.bb.wiit.network 9.824ms
9: lag0-vl1009.core1-muc-eq3.bb.wiit.network 9.856ms
10: lag0-vl1001.core1-pda-vsix.bb.wiit.network 20.400ms
11: lag0-vl1001.core1-mil-mix.bb.wiit.network 20.609ms asymm 9
12: lag0-vl5.core3-mil-irid.bb.wiit.network 20.157ms asymm 8
13: servereasy.minap.it 20.248ms asymm 9
14: no reply
15: no reply
16: no reply
17: 2a06:8cc0::1 20.557ms reached
Resume: pmtu 1500 hops 17 back 13 From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 22.4ms
4/4
Echo 1500B (DF) 20.9ms
yes
Type 1 dest-unreach
80
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 6.3ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 5.5ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 4.0ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:978:2:40::3:1 | 4.3ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 6 | be3457.ccr41.ams03.atlas.cogentco.com 2001:550:0:1000::8275:109 | 8.3ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 7 | 2001:978:3::52 | 16.4ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 8 | 2001:668:0:2:ffff:0:5995:84c1 | 27.1ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 9 | 2001:668:0:3:ffff:1:0:2d22 | 29.7ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | 2a06:8cc0::1 | 27.7ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.038ms pmtu 1500
1: 2a00:8642:42::2 3.815ms
1: 2a00:8642:42::2 5.384ms
2: no reply
3: 2a00:1ca8:1::194 8.142ms
4: 2a03:3f40::10:41 6.604ms
5: 2001:978:2:40::3:1 6.970ms
6: be3457.ccr41.ams03.atlas.cogentco.com 6.620ms
7: 2001:978:3::52 18.971ms asymm 15
8: 2001:668:0:2:ffff:0:5995:84c1 25.176ms asymm 16
9: 2001:668:0:3:ffff:1:0:2d22 32.389ms asymm 10
10: no reply
11: no reply
12: 2a06:8cc0::1 22.437ms reached
Resume: pmtu 1500 hops 12 back 12 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 8.8ms
3/4
Echo 1500B (DF) 9.0ms
yes
Type 1 dest-unreach
443,80
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | 2a12:d8c0:109f:121::a1 | 0.4ms | - | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:101f:6::1 | 9.7ms | - | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | servereasy.minap.it 2001:7f8:c5::a506:798:1 | 9.4ms | 0% | AS60798 | Servereasy s.r.l. |
| 5 | 2a00:82e0:ffff::25 | 8.9ms | 0% | - | NA |
| 6 | 2a00:82e0:ffff::2f | 8.7ms | 0% | - | NA |
| 7 | 2a00:82e0:ffff::2d | 9.4ms | 0% | - | NA |
tracepath -6
1?: [LOCALHOST] 0.051ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.756ms
2: 2a12:d8c0:109f:121::a1 0.853ms
3: no reply
4: servereasy.minap.it 9.836ms asymm 5
5: 2a00:82e0:ffff::25 55.471ms
6: 2a00:82e0:ffff::2f 9.460ms asymm 7
7: 2a00:82e0:ffff::2f 9.847ms
8: 2a06:8cc0::1 9.372ms reached
Resume: pmtu 1500 hops 8 back 7 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 31.5ms
4/4
Echo 1500B (DF) 10.5ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | 0.8ms | 0% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 1.9ms | 60% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | * | - | - | - | |
| 6 | * | - | 20% | - | |
| 7 | * | - | - | - | |
| 8 | servereasy-AS60798.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a5d6:798:28 | 10.8ms | 0% | - | NA |
| 9 | 2a00:82e0:ffff::50 | 10.5ms | 0% | - | NA |
| 10 | 2a00:82e0:ffff::2f | 11.4ms | 0% | - | NA |
| 11 | 2a00:82e0:ffff::2d | 10.6ms | 0% | - | NA |
| 12 | 2a06:8cc0::1 | 11.2ms | - | AS203073 | GioveADSL - G.T. SRL, IT |
Rate-limited ICMPv6: hop 4, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.017ms pmtu 9000
1: fw1-lju.6connect.com 0.540ms
1: fw1-lju.6connect.com 0.485ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.925ms
3: 2a03:a100:0:201:1::1 0.744ms
4: 2a03:a100:0:201:1::1 0.691ms pmtu 1500
4: e0-1.core1.lju1.he.net 2.394ms
5: no reply
6: port-channel1.core1.zag2.he.net 4.099ms
7: no reply
8: servereasy.minap.it 12.209ms
9: 2a00:82e0:ffff::25 12.751ms asymm 7
10: 2a00:82e0:ffff::25 10.483ms asymm 7
11: 2a06:8cc0::1 10.404ms reached
Resume: pmtu 1500 hops 11 back 9 From SLO host (T-2) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 38.0ms
4/4
Echo 1500B (DF) 38.3ms
yes
Type 1 dest-unreach
443,80
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 3.6ms | 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 | 1.9ms | 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 | 1.8ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | hurricane-electric.nikhef.nlsix.net 2001:7f8:13::a500:6939:1 | 39.4ms | 0% | - | NA |
| 6 | be7.core2.fra2.he.net 2001:470:e:18::2 | 44.4ms | 10% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 46.9ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 35.4ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 39.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 10 | * | - | - | - | |
| 11 | servereasy-AS60798.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a5d6:798:28 | 31.8ms | 0% | - | NA |
| 12 | * | - | - | - | |
| 13 | 2a06:8cc0::1 | 38.3ms | - | AS203073 | GioveADSL - G.T. SRL, IT |
Rate-limited ICMPv6: hop 6, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: 2a01:261:313:b814::1 0.767ms
2: 2a01:260:1::225 13.781ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.664ms
4: hurricane-electric.nikhef.nlsix.net 38.866ms
5: hurricane-electric.nikhef.nlsix.net 36.864ms asymm 4
6: be3.core4.fra1.he.net 44.408ms asymm 7
7: be10.core1.zrh2.he.net 56.132ms asymm 8
8: be1.core1.mil2.he.net 35.851ms asymm 7
9: no reply
10: servereasy.minap.it 36.102ms asymm 7
11: servereasy-AS60798.mix-it.net 38.290ms asymm 7
12: no reply
13: no reply
14: 2a06:8cc0::1 40.052ms reached
Resume: pmtu 1500 hops 14 back 10