AS overview
Test target: 2a0c:ea40:1003::11 · ns1.tecnotn.net · address space: PA · prefixes announced: 1
prefix(es): 2a0c:ea40::/29
Targets & per-vantage-point probe results (3 target(s) across 3 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 | NL host (go6lab) | ITA host (Karsolink) | SLO host (6connect) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ||
2a0c:ea40:1002::253ns3.tecnotn.net | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a0c:ea40:1003::11ns1.tecnotn.net | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a0c:ea40:1003::12ns2.tecnotn.net | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO member - Open peering, peering member, since 2020-12-21. IPv6 LAN: 2001:7f8:b:100:1d1:a520:409:143. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a0c:ea40::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS200409 /29 maxLen 32 (ripe) |
ASPA: this AS has published an ASPA record listing 2 upstream provider(s) that are authorized to propagate routes from it: AS3356, AS12874. Routes from this AS that arrive via any other upstream are considered ASPA-invalid by validators that enforce ASPA.
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS200409's announced prefix replied during the random-target probe. Hop(s): 2a0c:ea40::1, 2a0c:ea40::2, 2a0c:ea40::77:83:112:2. 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 2026-05-30T12:47:27Z
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::3 | 1.2ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 2.1ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 2.1ms | 10% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 6.7ms | 10% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:7f8:1::a501:2874:1 | 21.9ms | 60% | - | NA |
| 6 | 2001:b00:1:1:3::13b | 20.3ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2001:b00:1:1:1::1c5 | 21.8ms | 60% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 8 | 2a0c.ea40.ip6.tecnotn.net 2a0c:ea40::77:83:112:2 | 20.3ms | 0% | AS200409 | Tecnodata - Tecnodata Trentina Srl, IT |
| 9 | 2a0c.ea40.ip6.tecnotn.net 2a0c:ea40::1 | 21.4ms | 0% | AS200409 | Tecnodata - Tecnodata Trentina Srl, IT |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 3, hop 4, hop 5, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: 2a00:8642:42::3 3.028ms
1: 2a00:8642:42::3 1.740ms
2: gw.friends.steffann.nl 2.580ms
3: 2a00:1ca8:1::194 3.044ms
4: 2a03:3f40::10:33 5.122ms
5: 2001:7f8:1::a501:2874:1 21.324ms
6: 2001:b00:1:1:3::139 20.929ms
7: 2001:b00:1:1:1::1c3 21.387ms
8: 2a0c.ea40.ip6.tecnotn.net 20.551ms
9: 2a0c.ea40.ip6.tecnotn.net 21.520ms
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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 | * | - | 0%* | - | |
| 2 | * | - | 0%* | - | |
| 3 | * | - | 0% | - | |
| 4 | * | - | 60% | - | |
| 5 | 2001:b00:1:1:1::1a9 | 9.8ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 6 | 2001:b00:1:1:1::1c3 | 10.3ms | 30% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2a0c.ea40.ip6.tecnotn.net 2a0c:ea40::77:83:112:2 | 9.6ms | 0% | AS200409 | Tecnodata - Tecnodata Trentina Srl, IT |
| 8 | 2a0c.ea40.ip6.tecnotn.net 2a0c:ea40::1 | 9.7ms | 0% | AS200409 | Tecnodata - Tecnodata Trentina Srl, IT |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
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] 0.031ms pmtu 1500
1: karsolink-01.net.karsolink.com 1.144ms
1: karsolink-01.net.karsolink.com 0.624ms
2: 2a12:d8c0:109f:121::a1 0.878ms
3: 2a12:d8c0:101f:6::1 10.437ms
4: fastweb.minap.it 12.014ms
5: 2001:b00:1:1:1::1a9 10.235ms
6: 2001:b00:1:1:1::1c3 10.842ms
7: 2a0c.ea40.ip6.tecnotn.net 10.271ms asymm 5
8: 2a0c.ea40.ip6.tecnotn.net 10.219ms asymm 4
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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 | ccr-to-fw-ccr1-gw-lju.6connect.com 2607:fae0:a000:2::2 | 0.4ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 3 | * | - | 0% | - | |
| 4 | 2a00:ee0:1:10::2 | 1.2ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a11:4142:2002 | 1.0ms | 0% | - | |
| 6 | 2620:107:4008:e85::2 | 8.2ms | 0% | - | NA |
| 7 | tecnodatatrentina-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a520:409:143 | 8.3ms | 0% | - | NA |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.045ms pmtu 1500
1: fw1-lju.6connect.com 0.503ms
1: fw1-lju.6connect.com 0.564ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.653ms
3: 2a00:ee1:800:9::1 1.859ms
4: 2a00:ee0:1:10::2 1.079ms asymm 3
5: 2a11:4142:2002:: 0.945ms asymm 6
6: 2620:107:4008:e85::2 8.138ms asymm 7
7: tecnodatatrentina-v6.mix-it.net 8.103ms asymm 6
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Too many hops: pmtu 1500
Resume: pmtu 1500