AS overview
Test target: 2001:1ad0:0:253::100 · dns1.netplanet.at · address space: mixed · prefixes announced: 8
prefix(es): 2001:1ad0::/32, 2001:1ad0:c4fd::/48, 2a0b:c200::/29, 2001:1ad0:c4ff::/48, 2001:1ad0:c4fe::/48, 2a00:5320::/32, 2a0d:f9c3::/32, 2a0b:c200:cafe::/48
Targets & per-vantage-point probe results (4 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 | ||
2001:1ad0:0:11::5mgate.netplanet.at | MX | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - |
2001:1ad0:0:253::100dns1.netplanet.at | NS | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
2001:1ad0:0:254::100dns2.netplanet.at | NS | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
2001:1ad0:200:1::2netplanet.at | drv | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - |
VIX / AAIX / SAIX / TIROL-IX / ERA-IX peering
VIX / AAIX / SAIX / TIROL-IX / ERA-IX member - Open peering, peering member, since 2010-07-29. IPv6 LAN: 2001:7f8:30:0:2:1:2:4953. Locations: -.
RPKI & ASPA
8 of 8 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2001:1ad0::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /32 maxLen 32 (ripe) |
2001:1ad0:c4fd::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /46 maxLen 48 (ripe); AS24953 /32 maxLen 32 (ripe) |
2a0b:c200::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /29 maxLen 32 (ripe) |
2001:1ad0:c4ff::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /46 maxLen 48 (ripe); AS24953 /32 maxLen 32 (ripe) |
2001:1ad0:c4fe::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /46 maxLen 48 (ripe); AS24953 /32 maxLen 32 (ripe) |
2a00:5320::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /32 maxLen 32 (ripe) |
2a0d:f9c3::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /32 maxLen 32 (ripe); AS209990 /29 maxLen 32 (ripe) |
2a0b:c200:cafe::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS24953 /48 maxLen 48 (ripe); AS24953 /29 maxLen 32 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS24953's announced prefix replied during the random-target probe. Hop(s): 2001:1ad0:0:2::1, 2001:1ad0:0:3::184. 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 2026-09-24T13:28:06Z
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 | 2001:7f8:1e::4 | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | ae1-0-vix.pr1.vie.netplanet.at @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:2:4953 | 10.9ms | 0% | - | NA |
| 4 | ae0.0100.core1.ix.vie.netplanet.at 2001:1ad0:0:2::1 | 12.6ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
| 5 | dns1.netplanet.at 2001:1ad0:0:253::100 | 11.0ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
tracepath -6
1?: [LOCALHOST] 0.020ms pmtu 1500
1: _gateway 0.939ms
1: _gateway 2.827ms
2: 2001:7f8:1e::4 1.131ms
3: ae1-0-vix.pr1.vie.netplanet.at 13.201ms
4: ae0.0100.core1.ix.vie.netplanet.at 13.146ms
5: dns1.netplanet.at 11.426ms reached
Resume: pmtu 1500 hops 5 back 5 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 | xe-0-0-12-2412.gw01.dus01.as59645.net 2a06:d1c0::dead:beef:401 | 8.3ms | 0% | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 9.0ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 4 | * | - | - | - | |
| 5 | lag11.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:115::3 | 8.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | lag8.core1-dus-ix.bb.wiit.network 2001:4ba0:ffe9:8::2 | 8.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 7 | * | - | 80% | - | |
| 8 | * | - | - | - | |
| 9 | 2003:0:1307:4033::2 | 18.5ms | 0% | AS3320 | DTAG - Deutsche Telekom AG, DE |
| 10 | ae-1.r26.frnkge13.de.bb.gin.ntt.net 2001:728:0:2000::1f9 | 18.5ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 11 | ae-7.r22.vienat02.at.bb.gin.ntt.net 2001:728:0:2000::6e | 24.1ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 12 | ae-2.a01.vienat02.at.bb.gin.ntt.net 2001:728:0:2000::28a | 22.2ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 13 | 2001:728:0:5000::155a | 20.1ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 14 | dns1.netplanet.at 2001:1ad0:0:253::100 | 19.9ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
Rate-limited ICMPv6: hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.021ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.653ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.555ms
2: xe-0-0-12-2412.gw01.dus01.as59645.net 8.696ms
3: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 11.260ms
4: no reply
5: lag30.core3-dus1.bb.wiit.network 8.633ms
6: lag8.core1-dus-ix.bb.wiit.network 8.695ms
7: no reply
8: no reply
9: 2003:0:1307:4033::2 20.049ms asymm 8
10: ae-1.r26.frnkge13.de.bb.gin.ntt.net 19.050ms asymm 9
11: ae-7.r22.vienat02.at.bb.gin.ntt.net 23.088ms asymm 9
12: ae-2.a01.vienat02.at.bb.gin.ntt.net 23.940ms asymm 10
13: 2001:728:0:5000::155a 21.052ms asymm 6
14: dns1.netplanet.at 21.591ms reached
Resume: pmtu 1500 hops 14 back 7 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 | 0.1ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 5.7ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 3 | * | - | - | - | |
| 4 | lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag8.core1-dus-ix.bb.wiit.network 2001:4ba0:ffe9:8::2 | 0.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | * | - | 20% | - | |
| 7 | * | - | - | - | |
| 8 | 2003:0:1307:4033::2 | 11.4ms | 0% | AS3320 | DTAG - Deutsche Telekom AG, DE |
| 9 | ae-1.r26.frnkge13.de.bb.gin.ntt.net 2001:728:0:2000::1f9 | 10.6ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 10 | ae-7.r22.vienat02.at.bb.gin.ntt.net 2001:728:0:2000::6e | 14.4ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 11 | ae-2.a01.vienat02.at.bb.gin.ntt.net 2001:728:0:2000::28a | 14.2ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 12 | 2001:728:0:5000::155a | 20.4ms | 0% | AS2914 | NTT-DATA-2914 - NTT America, Inc., US |
| 13 | dns1.netplanet.at 2001:1ad0:0:253::100 | 20.3ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.024ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.505ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.345ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 8.409ms
3: no reply
4: lag11.core3-dus1.bb.wiit.network 0.237ms
5: lag8.core1-dus-ix.bb.wiit.network 0.521ms
6: 2003:0:1203:c00f::1 1.600ms asymm 7
7: no reply
8: 2003:0:1307:4033::2 21.675ms asymm 7
9: ae-1.r26.frnkge13.de.bb.gin.ntt.net 11.888ms asymm 8
10: ae-7.r22.vienat02.at.bb.gin.ntt.net 16.134ms asymm 8
11: ae-2.a01.vienat02.at.bb.gin.ntt.net 15.642ms asymm 9
12: 2001:728:0:5000::155a 20.809ms asymm 7
13: dns1.netplanet.at 20.469ms reached
Resume: pmtu 1500 hops 13 back 8 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 | 3.5ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 10.5ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 5.1ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2a02:2d8:1:a001:232a | 7.0ms | 0% | - | |
| 6 | RT.IRX.VIE.AT.retn.net 2a02:2d8::57f5:e0af | 21.9ms | 30% | AS9002 | RETN-AS - RETN Limited, GB |
| 7 | ae1-0-vix.pr1.vie.netplanet.at @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:2:4953 | 22.5ms | 0% | - | NA |
| 8 | ae0.0100.core1.ix.vie.netplanet.at 2001:1ad0:0:2::1 | 24.5ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
| 9 | dns1.netplanet.at 2001:1ad0:0:253::100 | 22.7ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.043ms pmtu 1500
1: 2a00:8642:42::2 2.237ms
1: 2a00:8642:42::2 1.604ms
2: no reply
3: 2a00:1ca8:1::194 59.688ms
4: 2a03:3f40::10:33 10.469ms
5: ae1-499.RT.SRV.DRO.NL.retn.net 5.158ms
6: RT.IRX.VIE.AT.retn.net 23.333ms asymm 11
7: ae1-0-vix.pr1.vie.netplanet.at 24.163ms
8: ae0.0100.core1.ix.vie.netplanet.at 25.028ms
9: dns1.netplanet.at 22.581ms reached
Resume: pmtu 1500 hops 9 back 9 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 | 2a02:2d8:4:1815:232a | 3.4ms | 0% | - | |
| 5 | RT.IRX.VIE.AT.retn.net 2a02:2d8::57f5:e0af | 11.3ms | 0% | AS9002 | RETN-AS - RETN Limited, GB |
| 6 | ae1-0-vix.pr1.vie.netplanet.at @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:2:4953 | 11.5ms | - | - | NA |
| 7 | ae0.0100.core1.ix.vie.netplanet.at 2001:1ad0:0:2::1 | 11.3ms | - | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
| 8 | dns1.netplanet.at 2001:1ad0:0:253::100 | 11.3ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 0.685ms
3: 2a12:d8c0:109f:106::a2 3.535ms
4: ae0-303.RT.VSX.PDA.IT.retn.net 3.654ms
5: RT.IRX.VIE.AT.retn.net 11.563ms
6: ae1-0-vix.pr1.vie.netplanet.at 12.309ms
7: ae0.0100.core1.ix.vie.netplanet.at 12.002ms
8: ae0.0100.core1.ix.vie.netplanet.at 22.724ms asymm 7
9: dns1.netplanet.at 23.586ms reached
Resume: pmtu 1500 hops 9 back 8 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 | 1.9ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | 2a03:a100:0:201:1::1 | 1.3ms | 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 | 2.9ms | 70% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | 100ge0-0-0-5.core1.vie1.he.net 2001:470:0:578::1 | 12.7ms | 80% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | ae1-0-vix.pr1.vie.netplanet.at @VIX / AAIX / SAIX / TIROL-IX / ERA-IX 2001:7f8:30:0:2:1:2:4953 | 6.4ms | 0% | - | NA |
| 7 | ae0.0100.core1.ix.vie.netplanet.at 2001:1ad0:0:2::1 | 6.4ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
| 8 | dns1.netplanet.at 2001:1ad0:0:253::100 | 6.1ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
Rate-limited ICMPv6: hop 4, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.021ms pmtu 9000
1: fw1-lju.6connect.com 0.572ms
1: fw1-lju.6connect.com 0.729ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.839ms
3: 2a03:a100:0:201:1::1 0.958ms
4: 2a03:a100:0:201:1::1 0.795ms pmtu 1500
4: no reply
5: 100ge0-0-0-5.core1.vie1.he.net 8.718ms
6: 2001:7f8:17e::144 7.369ms
7: ae0.0100.core1.ix.vie.netplanet.at 6.540ms
8: dns1.netplanet.at 6.148ms reached
Resume: pmtu 1500 hops 8 back 8 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 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 6.4ms | 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 | 2.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | netplanet.peering.cz 2001:7f8:7f::c:21 | 13.4ms | 0%* | - | NA |
| 5 | netplanet.peering.cz 2001:7f8:7f::c:21 | 9.4ms | 0% | - | NA |
| 6 | dns1.netplanet.at 2001:1ad0:0:253::100 | 13.2ms | 0% | AS24953 | ASN-NETPLANET - NETPLANET GmbH, AT |
tracepath -6
1?: [LOCALHOST] 0.027ms pmtu 1500
1: 2a01:261:313:b814::1 1.314ms
1: no reply
2: 2a01:260:1::225 13.375ms
3: 2a01-260-1-1--9c.core6.t-2.net 4.477ms
4: 2a01-260-1-1--39.core6.t-2.net 2.656ms asymm 3
5: netplanet.peering.cz 8.969ms
6: ae0.0100.core1.ix.vie.netplanet.at 9.716ms
7: dns1.netplanet.at 12.833ms reached
Resume: pmtu 1500 hops 7 back 7