AS overview
Test target: 2a0e:b107:1410::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a0e:b107:1410::/44
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 | ||
2a0e:b107:1410::1 | prb | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a0e:b107:1410::/44 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS204235 /44 maxLen 48 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS204235's announced prefix replied during the random-target probe. Hop(s): 2a0e:b107:1410::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 2026-09-23T12:07:49Z
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) 36.4ms
4/4
Echo 1500B (DF) 36.3ms
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 | 0.4ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | sox-pn.sox.rs 2001:7f8:1e:8::3a | 0.2ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | 2001:7f8:1e:8::3d | 0.5ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2001:67c:128c::699 | 19.3ms | 0% | - | NA |
| 5 | * | - | 0% | - | |
| 6 | 2a0e:b107:1410::1 | 36.2ms | - | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.012ms pmtu 1500
1: _gateway 0.360ms
1: _gateway 0.491ms
2: sox-pn.sox.rs 11.196ms
3: 2001:7f8:1e:8::3d 0.510ms asymm 2
4: 2001:67c:128c::699 19.485ms
5: 2a0e:b107:1410::1 38.889ms reached
Resume: pmtu 1500 hops 5 back 9 From DE host (Berlin) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 12.7ms
4/4
Echo 1500B (DF) 13.5ms
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 | 23.3ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 23.5ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-10.cr10.ber03.lwlcom.net 2a00:c380:b200:230::220 | 23.6ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-15.cr11.dtm01.lwlcom.net 2a00:c380:b200:230::5 | 31.2ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-20.cr10.dtm01.lwlcom.net 2a00:c380:b200:230::92 | 31.2ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae0-20.cr10.dus04.lwlcom.net 2a00:c380:b200:230::139 | 31.1ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 7 | ae0-10.cr10.dus01.lwlcom.net 2a00:c380:b200:230::187 | 31.0ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 8 | ae0-20.cr10.vel01.lwlcom.net 2a00:c380:b200:230::65 | 40.5ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 9 | ae0-30.cr10.dus06.lwlcom.net 2a00:c380:b200:230::36 | 9.1ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 10 | ipv6.de-cix.dus.de.as20473.choopa.com 2001:7f8:9e::4ff9:0:1 | 16.5ms | 0% | - | NA |
| 11 | ethernetae9-sr1.fkt3.constant.com 2001:19f0:fc00::a4b:22a | 16.3ms | 0% | - | NA |
| 12 | ethernetswp56-ds1-m1-r53b94-b.fkt3.constant.com 2001:19f0:fc00::a4b:342 | 12.3ms | 0% | - | NA |
| 13 | 2a05:f480:1800:10f7::33 | 11.9ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 14 | 2a0e:b107:1410::1 | 12.1ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.021ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.463ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.442ms
2: ae0-2453.cr10.ber01.lwlcom.net 0.889ms
3: ae0-10.cr10.ber03.lwlcom.net 1.082ms
4: ae0-15.cr11.dtm01.lwlcom.net 8.888ms asymm 5
5: ae0-10.cr10.dtm02.lwlcom.net 8.836ms asymm 6
6: ae0-50.cr10.dus02.lwlcom.net 8.614ms asymm 3
7: ae0-40.cr10.dus05.lwlcom.net 8.739ms asymm 4
8: ae0-20.cr10.vel01.lwlcom.net 9.351ms asymm 5
9: ae0-10.cr10.dus06.lwlcom.net 8.964ms asymm 6
10: ipv6.de-cix.dus.de.as20473.choopa.com 12.419ms asymm 3
11: ethernetae2-sr2.fkt3.constant.com 13.700ms asymm 4
12: ethernetswp56-ds1-m1-r53b94-a.fkt3.constant.com 12.471ms asymm 5
13: 2a05:f480:1800:10f7::33 12.311ms asymm 6
14: 2a0e:b107:1410::1 12.884ms reached
Resume: pmtu 1500 hops 14 back 7 From DE host (Düsseldorf) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 4.1ms
4/4
Echo 1500B (DF) 4.1ms
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 | ipv6.de-cix.dus.de.as20473.choopa.com 2001:7f8:9e::4ff9:0:1 | 3.8ms | 0% | - | NA |
| 3 | ethernetae2-sr2.fkt3.constant.com 2001:19f0:fc00::a4b:236 | 14.5ms | 0% | - | NA |
| 4 | ethernetswp56-ds1-m1-r53b94-b.fkt3.constant.com 2001:19f0:fc00::a4b:342 | 4.0ms | 0% | - | NA |
| 5 | 2a05:f480:1800:10f7::33 | 3.9ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 6 | 2a0e:b107:1410::1 | 4.3ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.022ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.382ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.332ms
2: ipv6.de-cix.dus.de.as20473.choopa.com 4.117ms
3: ethernetae2-sr2.fkt3.constant.com 4.869ms asymm 4
4: ethernetswp56-ds1-m1-r53b94-b.fkt3.constant.com 4.305ms asymm 5
5: 2a05:f480:1800:10f7::33 4.300ms asymm 6
6: 2a0e:b107:1410::1 4.284ms reached
Resume: pmtu 1500 hops 6 back 7 From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 15.0ms
4/4
Echo 1500B (DF) 16.8ms
yes
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 3.4ms | 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 | 5.1ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 7.2ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | ae22-404.ams10.core-backbone.com 2a01:4a0:1338:155::1 | 7.3ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 6 | ae2-2073.dus10.core-backbone.com 2a01:4a0:0:2073::33 | 8.8ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | * | - | - | - | |
| 10 | 2a05:f480:1800:10f7::33 | 12.3ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 11 | 2a0e:b107:1410::1 | 12.8ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.036ms pmtu 1500
1: 2a00:8642:42::2 4.601ms
1: 2a00:8642:42::2 7.278ms
2: no reply
3: 2a00:1ca8:1::194 3.546ms
4: 2a03:3f40::10:33 7.744ms
5: ae22-404.ams10.core-backbone.com 9.474ms
6: ae2-2073.dus10.core-backbone.com 11.433ms
7: no reply
8: no reply
9: no reply
10: 2a05:f480:1800:10f7::33 14.163ms
11: 2a0e:b107:1410::1 11.994ms reached
Resume: pmtu 1500 hops 11 back 12 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 19.3ms
3/4
Echo 1500B (DF) 19.4ms
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 | * | - | 0%* | - | |
| 3 | * | - | - | - | |
| 4 | 2a03:b020:1:51::a | 10.1ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 5 | 2a03:b020::224 | 18.7ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 6 | decix.fkt.vultr.com 2001:7f8::4ff9:0:1 | 19.0ms | 0% | - | NA |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | 2a05:f480:1800:10f7::33 | 19.3ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 10 | 2a0e:b107:1410::1 | 19.3ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 0.911ms
3: no reply
4: 2a03:b020:1:51::a 11.252ms
5: 2a03:b020::224 19.542ms
6: decix.fkt.vultr.com 19.672ms asymm 7
7: no reply
8: no reply
9: 2a05:f480:1800:10f7::33 19.860ms asymm 10
10: 2a0e:b107:1410::1 19.815ms reached
Resume: pmtu 1500 hops 10 back 11 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 14.5ms
4/4
Echo 1500B (DF) 14.7ms
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 | 0.3ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | 20% | - | |
| 4 | 2a00:ee0:1:15::2 | 1.0ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | decix.fkt.vultr.com 2001:7f8::4ff9:0:1 | 14.9ms | 0% | - | NA |
| 6 | ethernetae9-sr1.fkt3.constant.com 2001:19f0:fc00::a4b:22a | 17.7ms | 0% | - | NA |
| 7 | ethernetswp56-ds1-m1-r53b94-b.fkt3.constant.com 2001:19f0:fc00::a4b:342 | 18.1ms | 0% | - | NA |
| 8 | 2a05:f480:1800:10f7::33 | 17.9ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 9 | 2a0e:b107:1410::1 | 17.9ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 9000
1: fw1-lju.6connect.com 0.656ms
1: fw1-lju.6connect.com 0.549ms
2: no reply
3: 2a00:ee1:800:9::1 1.962ms
4: 2a00:ee0:1:15::2 1.344ms asymm 3
5: 2a00:ee0:1:15::2 1.720ms pmtu 1500
5: decix.fkt.vultr.com 14.824ms asymm 11
6: ethernetae9-sr1.fkt3.constant.com 30.053ms asymm 11
7: ethernetswp56-ds1-m1-r53b94-a.fkt3.constant.com 20.707ms asymm 15
8: 2a05:f480:1800:10f7::33 18.027ms asymm 15
9: 2a0e:b107:1410::1 17.913ms reached
Resume: pmtu 1500 hops 9 back 15 From SLO host (T-2) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 21.5ms
4/4
Echo 1500B (DF) 20.3ms
yes
Type 1 dest-unreach
443,80
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a01:261:313:b814::1 | 0.5ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 2 | 2a01:260:1::225 | 2.2ms | 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 | 1.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--c.core6.t-2.net 2a01:260:1:1::c | 3.5ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | 2a01-260-1-1--2a.core6.t-2.net 2a01:260:1:1::2a | 4.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 6 | ae4-2028.muc20.core-backbone.com 2a01:4a0:0:2028::7 | 14.7ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 7 | ae14-2032.nbg20.core-backbone.com 2a01:4a0:0:2032::2 | 16.7ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 8 | ae1-2003.fra20.core-backbone.com 2a01:4a0:0:2003::4 | 18.6ms | 0% | AS201011 | CORE-BACKBONE - Core-Backbone GmbH, DE |
| 9 | decix.fkt.vultr.com 2001:7f8::4ff9:0:1 | 22.1ms | 0% | - | NA |
| 10 | decix.fkt.vultr.com 2001:7f8::4ff9:0:1 | 21.0ms | 0% | - | NA |
| 11 | ethernetae9-sr1.fkt3.constant.com 2001:19f0:fc00::a4b:22a | 24.4ms | 0% | - | NA |
| 12 | 2a05:f480:1800:10f7::33 | 22.1ms | 0% | AS20473 | AS-VULTR - The Constant Company, LLC, US |
| 13 | 2a0e:b107:1410::1 | 21.8ms | 0% | AS204235 | nicoloinvernizzi-as - Nicolo Invernizzi, IT |
tracepath -6
1?: [LOCALHOST] 0.079ms pmtu 1500
1: 2a01:261:313:b814::1 1.180ms
2: 2a01:260:1::225 3.250ms
3: 2a01-260-1-1--9c.core6.t-2.net 3.128ms
4: 2a01-260-1-1--25.core6.t-2.net 5.405ms
5: 2a01-260-1-1--c.core6.t-2.net 4.614ms asymm 4
6: ae14-420.vie10.core-backbone.com 8.977ms asymm 5
7: ae14-2032.nbg20.core-backbone.com 17.290ms
8: ae1-2003.fra20.core-backbone.com 19.810ms
9: decix.fkt.vultr.com 22.639ms asymm 11
10: ethernetae2-sr2.fkt3.constant.com 24.993ms asymm 12
11: ethernetae9-sr1.fkt3.constant.com 21.929ms
12: ethernetswp56-ds1-m1-r53b94-b.fkt3.constant.com 19.843ms
13: 2a0e:b107:1410::1 23.546ms reached
Resume: pmtu 1500 hops 13 back 16