AS overview
Test target: 2a06:8580::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a06:8580::/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 | ||
2a06:8580::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 2016-09-12. IPv6 LAN: 2001:7f8:b:100:1d1:a5d3:4606:211. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:8580::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS34606 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 15 arbitrary IPv6 address(es) inside AS34606's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a02:260:0:2::2 at hop 12 - that router does not answer ICMPv6 Echo. This is not in AS34606'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 2026-05-30T12:45:50Z
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 | 1.9ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | ccr2-ccr1.dc1.nogalliance.org 2a00:8642:dc1:2::b | 1.5ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 4 | ams-ix.ipv6.itgate.net 2001:7f8:1::a501:2779:1 | 4.9ms | 0% | - | NA |
| 5 | if-0-2-0-1.Muttley-Monster.TRN.ipv6.itgate.net 2001:1418:1::10e2 | 21.3ms | 0% | AS12779 | ITGATE - IT.Gate S.p.A., IT |
| 6 | bbbell-gw6.customer.itgate.net 2001:1418:8:1::1a2 | 21.1ms | 0% | AS12779 | ITGATE - IT.Gate S.p.A., IT |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | 2a06:8580::1 | 20.3ms | 0% | AS34606 | ASN-BBBELL - B.B.Bell SPA, IT |
tracepath -6
1?: [LOCALHOST] 0.039ms pmtu 1500
1: 2a00:8642:42::3 1.063ms
1: 2a00:8642:42::3 1.306ms
2: no reply
3: ccr2-ccr1.dc1.nogalliance.org 2.679ms asymm 2
4: ams-ix.ipv6.itgate.net 4.691ms asymm 3
5: if-0-2-0-1.Muttley-Monster.TRN.ipv6.itgate.net 21.197ms
6: bbbell-gw6.customer.itgate.net 21.068ms
7: no reply
8: no reply
9: 2a06:8580::1 21.041ms 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 | * | - | 0%* | - | |
| 2 | 2a12:d8c0:109f:121::a1 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:101f:6::1 | 10.0ms | 10% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | bbbell.minap.it 2001:7f8:c5::a503:4606:1 | 11.6ms | 0% | AS34606 | BBBell S.p.A. |
| 5 | 2a02:260:0:7::5 | 11.9ms | 0% | - | NA |
| 6 | 2a02:260:0:7 | 11.8ms | 0% | - | |
| 7 | 2a02:260:0:1::21 | 12.2ms | 0% | - | NA |
| 8 | 2a06:8580::1 | 11.3ms | 0% | AS34606 | ASN-BBBELL - B.B.Bell SPA, IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.839ms
1: karsolink-01.net.karsolink.com 0.674ms
2: 2a12:d8c0:109f:121::a1 0.807ms
3: 2a12:d8c0:101f:6::1 10.587ms
4: bbbell.minap.it 12.381ms asymm 7
5: 2a02:260:0:7::7 12.355ms asymm 6
6: 2a02:260:0:7:: 12.775ms asymm 5
7: 2a02:260:0:1::23 13.088ms asymm 6
8: 2a06:8580::1 11.871ms reached
Resume: pmtu 1500 hops 8 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 | 0.7ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 1.8ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | * | - | - | - | |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 4.6ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | bbbell.topix.it 2001:7f8:23:ffff::33 | 15.9ms | 0% | - | NA |
| 9 | 2a02:260:0:7::7 | 12.9ms | 0% | - | NA |
| 10 | 2a02:260:0:1::21 | 15.4ms | 0% | - | NA |
| 11 | 2a02:260:0:1::23 | 17.4ms | 0% | - | NA |
| 12 | 2a06:8580::1 | 14.3ms | 0% | AS34606 | ASN-BBBELL - B.B.Bell SPA, IT |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.034ms pmtu 1500
1: fw1-lju.6connect.com 0.437ms
1: fw1-lju.6connect.com 0.338ms
2: no reply
3: 2a03:a100:0:201:1::1 0.740ms
4: e0-1.core1.lju1.he.net 2.184ms
5: no reply
6: port-channel1.core1.zag2.he.net 4.205ms
7: no reply
8: bbbell-v6.mix-it.net 12.573ms
9: 2a02:260:0:7::5 12.740ms
10: 2a02:260:0:7::2 14.753ms
11: 2a06:8580::1 14.119ms reached
Resume: pmtu 1500 hops 11 back 12