AS overview
Test target: 2a0a:ee80:8::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a0a:ee80:8::/47
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 | ||
2a0a:ee80:8::1 | prb | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
RPKI & ASPA
0 of 1 prefix(es) covered by a valid ROA, 1 not-found.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a0a:ee80:8::/47 | - not-found | no covering VRP |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS43988's announced prefix replied during the random-target probe. Hop(s): 2a0a:ee80:9:fffe::249. 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 2026-05-30T12:46:42Z
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 | 1.8ms | 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 | 2.9ms | 40% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:33 | 7.6ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:7f8:1::a501:2874:1 | 24.0ms | 0% | - | NA |
| 6 | 2001:b00:1:1:3::139 | 21.3ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2001:b00:7fff:fc0c::ebc9:2 | 21.0ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 8 | 2a0a:ee80:9:fffe::249 | 21.0ms | 0% | AS43988 | asagid - Agenzia per L_Italia Digitale, IT |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.041ms pmtu 1500
1: 2a00:8642:42::3 1.835ms
1: 2a00:8642:42::3 1.973ms
2: gw.friends.steffann.nl 2.447ms
3: 2a00:1ca8:1::194 2.636ms
4: 2a03:3f40::10:33 5.154ms
5: 2001:7f8:1::a501:2874:1 21.260ms
6: 2001:b00:1:1:3::139 20.574ms
7: 2001:b00:7fff:fc0c::ebc9:2 21.743ms asymm 9
8: 2a0a:ee80:9:fffe::249 21.323ms
9: no reply
10: no reply
11: no reply
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
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 | karsolink-01.net.karsolink.com 2a12:d8c0:105a:9001::1 | 0.2ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 2 | * | - | 0%* | - | |
| 3 | 2a12:d8c0:101f:6::1 | 10.0ms | 0% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | * | - | 50% | - | |
| 5 | 2001:b00:1:1:1::1a7 | 9.7ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 6 | 2001:b00:7fff:fc0c::ebc9:2 | 10.2ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 7 | 2a0a:ee80:9:fffe::249 | 9.7ms | 0% | AS43988 | asagid - Agenzia per L_Italia Digitale, IT |
| 8 | * | - | 0% | - | |
| 9 | * | - | - | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.050ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 1.053ms
3: 2a12:d8c0:101f:6::1 10.776ms
4: fastweb.minap.it 12.276ms
5: 2001:b00:1:1:1::1a7 10.895ms
6: 2001:b00:7fff:fc0c::ebc9:2 11.101ms asymm 8
7: 2a0a:ee80:9:fffe::249 11.506ms
8: no reply
9: no reply
10: no reply
11: no reply
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
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 | 0.5ms | - | AS8038 | 6CONNECT - 6connect, Inc., US |
| 3 | 2a03:a100:0:201:1::1 | 0.6ms | - | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | 2001:7f8:46:0:1::3303 | 7.8ms | 0% | AS51988 | ARNES-SIX - ARNES, SI |
| 5 | 2001:918:100:74::1 | 7.9ms | 0% | AS3303 | SWISSCOM - Swisscom (Schweiz) AG, CH |
| 6 | 2001:4d98:a000::119 | 24.3ms | 50% | - | NA |
| 7 | 2001:b00:1:1:3::139 | 10.9ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 8 | 2001:b00:7fff:fc0c::ebc9:2 | 10.9ms | 0% | AS12874 | FASTWEB - Fastweb SpA, IT |
| 9 | 2a0a:ee80:9:fffe::249 | 10.4ms | 0% | AS43988 | asagid - Agenzia per L_Italia Digitale, IT |
| 10 | * | - | 0% | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: fw1-lju.6connect.com 0.552ms
1: fw1-lju.6connect.com 0.647ms
2: no reply
3: no reply
4: 2001:7f8:46:0:1::3303 8.319ms
5: 2001:918:100:74::1 8.035ms
6: 2001:4d98:a000::119 24.207ms asymm 11
7: 2001:b00:1:1:3::139 10.505ms asymm 9
8: 2001:b00:7fff:fc0c::ebc9:2 11.337ms asymm 12
9: 2a0a:ee80:9:fffe::249 11.365ms asymm 11
10: no reply
11: no reply
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500