AS overview
Test target: 2001:67c:2b50::1 · static prefix probe · address space: PI · prefixes announced: 1
prefix(es): 2001:67c:2b50::/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:2b50::1 | prb | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - |
VIX / AAIX / SAIX / TIROL-IX / ERA-IX peering
VIX / AAIX / SAIX / TIROL-IX / ERA-IX member - Open peering, peering member, since 2017-10-16. IPv6 LAN: 2001:7f8:30:0:2:1:4:4865. Locations: -.
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:67c:2b50::/48 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS44865's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:190:1701::4fa at hop 11 - that router answers ICMPv6 Echo. This is not in AS44865'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 2026-09-22T13:50:27Z
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 | 0.2ms | 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 | 0.6ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 4 | 2a02:2d8:0:a00e:232a | 11.1ms | 0% | - | |
| 5 | 2001:7f8:30:0:2:1:4:4865 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX | 11.1ms | 0% | - | NA |
tracepath -6
1?: [LOCALHOST] 0.020ms pmtu 1500
1: _gateway 1.049ms
1: _gateway 0.370ms
2: sox-pn.sox.rs 0.688ms
3: 2001:7f8:1e:8::3d 0.672ms asymm 2
4: ae8-930.RT.IRX.VIE.AT.retn.net 28.138ms asymm 3
5: 2001:7f8:30:0:2:1:4:4865 13.110ms reached
Resume: pmtu 1500 hops 5 back 3 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 | 19.0ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.9ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-40.cr10.muc02.lwlcom.net 2a00:c380:b200:230::178 | 11.3ms | 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 | 2001:7f8:30:0:2:1:4:4865 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX | 17.4ms | 0% | - | NA |
tracepath -6
1?: [LOCALHOST] 0.022ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.463ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.554ms
2: ae0-2453.cr10.ber01.lwlcom.net 0.915ms
3: ae0-40.cr10.muc02.lwlcom.net 11.652ms
4: ae0-10.cr10.muc01.lwlcom.net 11.743ms
5: 2001:7f8:30:0:2:1:4:4865 17.758ms reached
Resume: pmtu 1500 hops 5 back 5 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 | 0.6ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-90.cr11.dus01.lwlcom.net 2a00:c380:b200:230::222 | 0.8ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-10.cr10.dus06.lwlcom.net 2a00:c380:b200:230::147 | 2.6ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | ae0-40.cr10.fra06.lwlcom.net 2a00:c380:b200:230::21 | 4.1ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 7 | ae0-20.cr10.muc01.lwlcom.net 2a00:c380:b200:230::250 | 14.7ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 8 | 2001:7f8:30:0:2:1:4:4865 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX | 20.3ms | 0% | - | NA |
tracepath -6
1?: [LOCALHOST] 0.014ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.315ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.215ms
2: ae0-101.cr10.dus02.lwlcom.net 0.336ms
3: ae0-40.cr10.dus05.lwlcom.net 7.455ms
4: ae0-90.cr11.dus01.lwlcom.net 0.803ms
5: ae0-30.cr10.dus06.lwlcom.net 1.183ms
6: ae0-40.cr10.fra06.lwlcom.net 4.602ms
7: ae0-20.cr10.muc01.lwlcom.net 14.434ms asymm 5
8: 2001:7f8:30:0:2:1:4:4865 20.843ms reached
Resume: pmtu 1500 hops 8 back 6 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 | 3.0ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 4.4ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 8.8ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 8.6ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:b28:3ff::1b1b:0:1 | 29.5ms | 0% | AS31500 | GNM-AS - Global Network Management Inc, AG |
| 6 | be2.core1.cph1.he.net 2001:470:e:5f::1 | 28.6ms | 10% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | 20% | - | |
| 8 | * | - | - | - | |
| 9 | ip6-ae2-0-r46.inx.vie.nextlayer.net 2a01:190:1764:87::2 | 61.3ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 10 | ip6-ae1-0-r46.inx.vie.nextlayer.net 2a01:190:1764:75::2 | 55.9ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 11 | 2a01:190:1701::4fa | 39.1ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
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] 0.031ms pmtu 1500
1: 2a00:8642:42::2 2.318ms
1: 2a00:8642:42::2 2.487ms
2: gw.friends.steffann.nl 2.274ms
3: 2a00:1ca8:1::194 4.274ms
4: 2a03:3f40::10:41 3.513ms
5: 2001:b28:3ff::1b1b:0:1 28.139ms
6: be9.core4.fra1.he.net 30.644ms asymm 4
7: be7.core3.ams1.he.net 32.628ms asymm 3
8: de-cix.r60.inx.fra.de.nextlayer.net 41.822ms
9: ams-ix.r06.nikh.ams.nl.nextlayer.net 44.403ms asymm 8
10: 2a01:190:1701::4fa 42.777ms reached
Resume: pmtu 1500 hops 10 back 12 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 | * | - | 0%* | - | |
| 2 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | * | - | - | - | |
| 5 | be47.core1.mil2.he.net 2001:470:e:69::2 | 12.4ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | be1.core1.zrh2.he.net 2001:470:e:dd::2 | 12.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | be1.core3.zrh3.he.net 2001:470:0:7e0::2 | 14.5ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | * | - | - | - | |
| 10 | ip6-ae1-0-r46.inx.vie.nextlayer.net 2a01:190:1764:75::2 | 33.9ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 11 | 2a01:190:1701::4fa | 17.5ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
tracepath -6
1?: [LOCALHOST] 0.033ms pmtu 1500
1: no reply
2: no reply
3: no reply
4: no reply
5: be47.core1.mil2.he.net 13.405ms
6: be1.core1.zrh2.he.net 15.340ms
7: no reply
8: be1.core3.zrh3.he.net 16.137ms
9: no reply
10: no reply
11: 2a01:190:1701::4fa 18.055ms reached
Resume: pmtu 1500 hops 11 back 6 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 | * | - | 80% | - | |
| 4 | 2a00:ee0:1:15::2 | 1.1ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a11:4142:2002 | 1.1ms | 0% | - | |
| 6 | r2-vie1-at.as5405.net 2a11:4140::1e | 7.4ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 7 | et9-4096.r2-vie2-at.as5405.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:3:1:2:5291 | 7.3ms | 0% | - | NA |
| 8 | 2001:7f8:30:0:2:1:4:4865 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX | 8.6ms | 0% | - | NA |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.027ms pmtu 9000
1: fw1-lju.6connect.com 0.424ms
1: fw1-lju.6connect.com 0.480ms
2: no reply
3: no reply
4: 2a00:ee0:1:10::2 1.647ms asymm 3
5: 2a00:ee0:1:10::2 1.773ms pmtu 1500
5: 2a11:4142:2002:: 1.295ms asymm 6
6: r2-vie1-at.as5405.net 7.199ms asymm 9
7: et9-4096.r2-vie2-at.as5405.net 7.259ms asymm 8
8: 2001:7f8:30:0:2:1:4:4865 8.681ms reached
Resume: pmtu 1500 hops 8 back 10 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 | 5.3ms | 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 | 2.1ms | 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 | 2.0ms | - | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | 100ge0-0-0-31.core1.vie1.he.net 2001:470:0:4a8::1 | 10.5ms | 40% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | vix-ip6-et-0-1-2-0-r60.esh.vie.at.nextlayer.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:1:1:0:1764 | 9.4ms | 0% | - | NA |
| 7 | ip6-ae2-0-r46.inx.vie.nextlayer.net 2a01:190:1764:87::2 | 28.0ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
| 8 | 2a01:190:1701::4fa | 8.4ms | 0% | AS1764 | NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT |
Rate-limited ICMPv6: hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.082ms pmtu 1500
1: 2a01:261:313:b814::1 0.966ms
1: 2a01:261:313:b814::1 1.230ms
2: 2a01:260:1::225 2.189ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.303ms
4: 2a01-260-1-1--38.core6.t-2.net 3.482ms asymm 3
5: 100ge0-0-0-31.core1.vie1.he.net 10.255ms
6: vix-ip6-et-0-1-2-0-r60.inx.vie.at.nextlayer.net 11.006ms asymm 5
7: vix-ip6-et-0-1-2-0-r60.inx.vie.at.nextlayer.net 10.846ms asymm 5
8: 2a01:190:1701::4fa 10.435ms reached
Resume: pmtu 1500 hops 8 back 5