AS overview
Test target: 2a06:c100::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a06:c100::/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:c100::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 2019-11-29. IPv6 LAN: 2001:7f8:b:100:1d1:a520:8920:98. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:c100::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS208920 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 15 arbitrary IPv6 address(es) inside AS208920's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:40d0::1:16 at hop 10 - that router answers ICMPv6 Echo. This is not in AS208920'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 2026-05-30T12:45:55Z
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 | 1.4ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 1.7ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 2.4ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 3.5ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:b28:3ff::1b1b:0:1 | 28.1ms | 0% | AS31500 | GNM-AS - Global Network Management Inc, AG |
| 6 | * | - | - | - | |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | panservice.minap.it 2001:7f8:c5::a502:912:1 | 37.1ms | 0% | AS20912 | Panservice s.a.s. |
| 10 | 2a06:c100::1 | 37.3ms | 0% | AS208920 | RocketWay-AS - Rocket Way S.R.L., IT |
tracepath -6
1?: [LOCALHOST] 0.043ms pmtu 1500
1: 2a00:8642:42::3 1.815ms
1: 2a00:8642:42::3 1.587ms
2: gw.friends.steffann.nl 2.919ms
3: 2a00:1ca8:1::194 3.171ms
4: 2a03:3f40::10:41 3.148ms
5: 2001:b28:3ff::1b1b:0:1 27.340ms asymm 6
6: be2.core1.cph1.he.net 26.585ms asymm 5
7: no reply
8: no reply
9: panservice.minap.it 37.355ms
10: 100ge-0-1-55.rr1.mil01.core.ipv6.panservice.it 37.310ms asymm 9
11: 2a06:c100::1 37.413ms reached
Resume: pmtu 1500 hops 11 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 | * | - | 0%* | - | |
| 2 | 2a12:d8c0:109f:121::a1 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | 2a12:d8c0:101f:103::1 | 8.6ms | 10% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | 2001:7f8:b9::14:1 | 9.8ms | 0% | - | NA |
| 5 | 100ge-0-1-55.rr1.mil01.core.ipv6.panservice.it 2001:40d0::1:16 | 9.6ms | 0% | AS20912 | ASN-PANSERVICE - Giuliano Claudio Peritore trading as _Panservice s.a.s. di Cuseo Fabrizio & C._, IT |
| 6 | 2a06:c100::1 | 9.1ms | 0% | AS208920 | RocketWay-AS - Rocket Way 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] 0.034ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 1.184ms
3: 2a12:d8c0:101f:103::1 8.951ms
4: 2001:7f8:b9::14:1 10.176ms
5: 100ge-0-1-55.rr1.mil01.core.ipv6.panservice.it 10.359ms
6: 2a06:c100::1 40.885ms reached
Resume: pmtu 1500 hops 6 back 4 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 | 2a00:ee1:800:9::1 | 1.7ms | 80% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 4 | 2a00:ee0:1:15::2 | 0.9ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a11:4142:2002 | 1.1ms | 0% | - | |
| 6 | 2620:107:4008:e85::2 | 8.1ms | 0% | - | NA |
| 7 | 2a06:c100::1 | 10.3ms | 0% | AS208920 | RocketWay-AS - Rocket Way 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] 0.113ms pmtu 1500
1: fw1-lju.6connect.com 0.513ms
1: fw1-lju.6connect.com 0.533ms
2: no reply
3: 2a00:ee1:800:9::1 1.756ms
4: 2a00:ee0:1:10::2 1.200ms asymm 3
5: 2a11:4142:2002:: 1.098ms asymm 6
6: 2620:107:4008:e85::2 8.177ms asymm 7
7: 2a06:c100::1 10.860ms reached
Resume: pmtu 1500 hops 7 back 8