AS overview
Test target: 2a07:2f40::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a07:2f40::/29
Targets & per-vantage-point probe results (1 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 | ||
2a07:2f40::1 | prb | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
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 2020-11-30. IPv6 LAN: 2001:7f8:b:100:1d1:a521:2659:130. Locations: -.
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a07:2f40::/29 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS212659's announced prefix replied during the random-target probe. Hop(s): 2a07:2f40::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 2026-05-30T12:46:12Z
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 | 2.5ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 3.1ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 5.9ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:7f8:1::a501:2874:1 | 68.0ms | 0% | - | NA |
| 6 | 2001:b00:1:1:3::139 | 21.4ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2001:b00:7fff:fc19::ebc9:2 | 21.8ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 8 | 2a07:2f40::1 | 20.8ms | 0% | AS212659 | artemismediasrl - Infinita SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.030ms pmtu 1500
1: 2a00:8642:42::3 1.551ms
1: 2a00:8642:42::3 1.535ms
2: no reply
3: 2a00:1ca8:1::194 2.532ms
4: 2a03:3f40::10:33 5.554ms
5: 2001:7f8:1::a501:2874:1 21.050ms
6: 2001:b00:1:1:3::139 21.554ms
7: 2001:b00:7fff:fc19::ebc9:2 21.607ms asymm 9
8: 2a07:2f40::1 20.564ms reached
Resume: pmtu 1500 hops 8 back 8 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 | karsolink-01.net.karsolink.com 2a12:d8c0:105a:9001::1 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 2 | 2a12:d8c0:109f:121::a1 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:101f:6::1 | 10.0ms | 0% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | fastweb.minap.it 2001:7f8:c5::a501:2874:1 | 11.1ms | 30% | AS12874 | Fastweb S.p.A. |
| 5 | 2001:b00:1:1:1::1a7 | 9.6ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 6 | 2001:b00:7fff:fc19::ebc9:2 | 10.2ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2a07:2f40::1 | 9.9ms | 0% | AS212659 | artemismediasrl - Infinita SRL, IT |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.815ms
1: karsolink-01.net.karsolink.com 0.899ms
2: 2a12:d8c0:109f:121::a1 0.818ms
3: 2a12:d8c0:101f:6::1 10.501ms
4: fastweb.minap.it 11.834ms
5: 2001:b00:1:1:1::1a7 10.199ms
6: 2001:b00:7fff:fc19::ebc9:2 10.628ms asymm 8
7: 2a07:2f40::1 10.361ms reached
Resume: pmtu 1500 hops 7 back 7 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 | 0.4ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | ccr-to-fw-ccr1-gw-lju.6connect.com 2607:fae0:a000:2::2 | 0.5ms | - | AS8038 | 6CONNECT - 6connect, Inc., US |
| 3 | * | - | 90% | - | |
| 4 | 2001:7f8:46:0:1::3303 | 7.7ms | 0% | AS51988 | ARNES-SIX - ARNES, SI |
| 5 | 2001:918:100:74::1 | 8.2ms | 0% | AS3303 | SWISSCOM - Swisscom (Schweiz) AG, CH |
| 6 | 2001:4d98:a000::15d | 8.9ms | 90% | - | NA |
| 7 | 2001:b00:1:1:3::139 | 10.2ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 8 | 2001:b00:7fff:fc19::ebc9:2 | 10.5ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 9 | 2a07:2f40::1 | 10.7ms | 0% | AS212659 | artemismediasrl - Infinita SRL, IT |
Rate-limited ICMPv6: hop 3, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.018ms pmtu 1500
1: fw1-lju.6connect.com 0.506ms
1: fw1-lju.6connect.com 0.455ms
2: no reply
3: no reply
4: 2001:7f8:46:0:1::3303 8.272ms
5: 2001:918:100:74::1 8.034ms
6: 2001:4d98:a000::15d 173.767ms
7: 2001:b00:1:1:3::139 10.494ms asymm 9
8: 2001:b00:7fff:fc19::ebc9:2 10.951ms asymm 12
9: 2a07:2f40::1 11.051ms reached
Resume: pmtu 1500 hops 9 back 11