AS overview
Test target: 2a06:8cc0::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a06:8cc0::/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 | ||
2a06:8cc0::1 | prb | ✓ | ✓ | open | ? | ✓ | ✓ | ✓ | open | refused | ✓ | ✓ | ✓ | open | refused | ✓ |
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering
Not an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO member, but our traceroute path crosses the MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO LAN from SLO host (6connect) - reached via an MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO-resident transit operator.
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:8cc0::/29 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS203073's announced prefix replied during the random-target probe. Hop(s): 2a06:8cc0::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 2026-05-30T12:45:49Z
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 | 1.1ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 2.5ms | 10% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 2.5ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | * | - | 70% | - | |
| 6 | * | - | - | - | |
| 7 | 2001:978:3::52 | 15.0ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 8 | 2001:668:0:2:ffff:0:5995:84c1 | 24.1ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 9 | 2001:668:0:3:ffff:1:0:2d22 | 18.8ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | 2a06:8cc0::1 | 28.5ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
Rate-limited ICMPv6: hop 3, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: 2a00:8642:42::3 1.818ms
1: 2a00:8642:42::3 1.477ms
2: no reply
3: 2a00:1ca8:1::194 2.946ms
4: 2a03:3f40::10:41 2.668ms
5: no reply
6: no reply
7: 2001:978:3::52 15.617ms asymm 16
8: 2001:668:0:2:ffff:0:5995:84c1 24.123ms asymm 16
9: 2001:668:0:3:ffff:1:0:2d22 19.507ms asymm 10
10: no reply
11: no reply
12: 2a06:8cc0::1 28.153ms reached
Resume: pmtu 1500 hops 12 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 | karsolink-01.net.karsolink.com 2a12:d8c0:105a:9001::1 | 0.3ms | 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 | servereasy.minap.it 2001:7f8:c5::a506:798:1 | 10.0ms | 0% | AS60798 | Servereasy s.r.l. |
| 5 | 2a00:82e0:ffff::52 | 9.5ms | 0% | - | NA |
| 6 | 2a00:82e0:ffff::25 | 9.5ms | 0% | - | NA |
| 7 | 2a00:82e0:ffff::2d | 9.5ms | 0% | - | NA |
| 8 | 2a06:8cc0::1 | 9.4ms | 0% | AS203073 | GioveADSL - G.T. SRL, IT |
tracepath -6
1?: [LOCALHOST] 0.030ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.771ms
2: 2a12:d8c0:109f:121::a1 0.961ms
3: 2a12:d8c0:101f:6::1 10.527ms
4: servereasy.minap.it 10.633ms
5: 2a00:82e0:ffff::50 10.032ms
6: 2a00:82e0:ffff::23 10.089ms
7: 2a00:82e0:ffff::2d 9.977ms
8: 2a06:8cc0::1 9.959ms 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 | 0.3ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | 2a03:a100:0:201:1::1 | 0.6ms | 60% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 1.9ms | 50% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | * | - | - | - | |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 4.1ms | 50% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | servereasy-AS60798.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a5d6:798:28 | 10.4ms | 0% | - | NA |
| 9 | 2a00:82e0:ffff::50 | 10.3ms | 0% | - | NA |
| 10 | 2a00:82e0:ffff::2f | 10.5ms | 0% | - | NA |
| 11 | 2a00:82e0:ffff::2d | 10.3ms | 0% | - | NA |
| 12 | 2a06:8cc0::1 | 10.2ms | - | AS203073 | GioveADSL - G.T. SRL, IT |
Rate-limited ICMPv6: hop 3, hop 4, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: fw1-lju.6connect.com 3.849ms
1: fw1-lju.6connect.com 0.560ms
2: no reply
3: no reply
4: e0-1.core1.lju1.he.net 4.567ms
5: no reply
6: port-channel1.core1.zag2.he.net 4.172ms
7: no reply
8: servereasy-AS60798.mix-it.net 10.729ms asymm 7
9: 2a00:82e0:ffff::52 11.845ms asymm 7
10: 2a00:82e0:ffff::2f 10.440ms asymm 9
11: 2a00:82e0:ffff::2d 10.806ms asymm 9
12: 2a06:8cc0::1 12.586ms reached
Resume: pmtu 1500 hops 12 back 9