AS overview
Test target: 2a06:7280::2 · static prefix probe · address space: unknown · prefixes announced: 1
prefix(es): 2a06:7280::/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 | ||
2a06:7280::2 | prb | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:7280::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS204096 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 15 arbitrary IPv6 address(es) inside AS204096's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:a620:1::6 at hop 11 - that router answers ICMPv6 Echo. This is not in AS204096'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 2026-05-30T12:45:45Z
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 | 1.5ms | 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 | * | - | - | - | |
| 4 | 2a01:a620:1:1 | 32.2ms | 0% | - | |
| 5 | 2a06:7280::2 | 39.5ms | 0% | AS204096 | ASN-MAC - Manutenzione ed Assistenza Computers S.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: 2a00:8642:42::3 1.409ms
1: 2a00:8642:42::3 1.187ms
2: gw.friends.steffann.nl 1.903ms
3: no reply
4: 2a01:a620:1:1:: 32.934ms asymm 14
5: 2a06:7280::2 39.907ms reached
Resume: pmtu 1500 hops 5 back 15 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 | 0.5ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:101f:6::1 | 10.0ms | 40% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | warian.minap.it 2001:7f8:c5::a505:6911:1 | 9.4ms | 0% | AS56911 | Warian s.r.l. |
| 5 | 2a01:a620:1:1 | 27.7ms | 0% | - | |
| 6 | 2a06:7280::2 | 26.3ms | 0% | AS204096 | ASN-MAC - Manutenzione ed Assistenza Computers S.r.l., IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 1500
1: no reply
2: no reply
3: 2a12:d8c0:101f:6::1 10.821ms
4: warian.minap.it 9.770ms asymm 6
5: 2a01:a620:1:1:: 26.655ms asymm 13
6: 2a06:7280::2 26.985ms reached
Resume: pmtu 1500 hops 6 back 13 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 | * | - | 0%* | - | |
| 3 | * | - | 40% | - | |
| 4 | 2a00:ee0:1:10::2 | 1.6ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2001:41a8:20:2::169 | 9.0ms | 0% | AS6762 | SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT |
| 6 | rom2-loop0-v6.rom.seabone.net 2001:41a8:60::2 | 16.6ms | 0% | AS6762 | SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT |
| 7 | * | - | - | - | |
| 8 | 2a06:7280::2 | 22.8ms | 0% | AS204096 | ASN-MAC - Manutenzione ed Assistenza Computers S.r.l., IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: fw1-lju.6connect.com 0.472ms
1: fw1-lju.6connect.com 0.464ms
2: no reply
3: 2a00:ee1:800:9::1 2.118ms
4: 2a00:ee0:1:10::2 1.311ms asymm 3
5: 2001:41a8:20:2::169 8.989ms asymm 6
6: rom2-loop0-v6.rom.seabone.net 17.638ms asymm 7
7: no reply
8: 2a06:7280::2 22.848ms reached
Resume: pmtu 1500 hops 8 back 13