AS overview
Test target: 2a06:7d40::1 · static prefix probe · address space: PA · prefixes announced: 2
prefix(es): 2a06:7d40::/29, 2a13:f00::/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 | ||
2a06:7d40::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 2014-06-16. IPv6 LAN: 2001:7f8:b:100:1d1:a5d3:4428:146. Locations: -.
RPKI & ASPA
2 of 2 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:7d40::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS34428 /29 maxLen 29 (ripe) |
2a13:f00::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS34428 /29 maxLen 29 (ripe) |
ASPA: this AS has published an ASPA record listing 6 upstream provider(s) that are authorized to propagate routes from it: AS174, AS1299, AS2914, AS3257, AS3356, AS6762. Routes from this AS that arrive via any other upstream are considered ASPA-invalid by validators that enforce ASPA.
Random-IP probe (yarrp) into the AS' prefixes
We probed 30 arbitrary IPv6 address(es) inside AS34428's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:7f8:13::a503:4428:1 at hop 9 - that router answers ICMPv6 Echo. This is not in AS34428'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 2026-05-30T12:45:46Z
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 | 0.9ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 1.8ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | * | - | - | - | |
| 4 | * | - | - | - | |
| 5 | be6.core2.ams2.he.net 2001:470:0:61c::2 | 4.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | 2a06:7d40::1 | 26.0ms | 0% | AS34428 | EIGHTROUTE - Giulio Lo Presti, IT |
tracepath -6
1?: [LOCALHOST] 0.029ms pmtu 1500
1: 2a00:8642:42::3 1.406ms
1: 2a00:8642:42::3 1.359ms
2: gw.friends.steffann.nl 2.058ms
3: no reply
4: no reply
5: be6.core2.ams2.he.net 7.346ms
6: 2a06:7d40::1 26.508ms reached
Resume: pmtu 1500 hops 6 back 7 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 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 2 | * | - | - | - | |
| 3 | 2a12:d8c0:101f:103::1 | 8.3ms | 80% | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | 2a06:7d40::1 | 8.8ms | 0% | AS34428 | EIGHTROUTE - Giulio Lo Presti, IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.031ms pmtu 1500
1: no reply
2: 2a12:d8c0:109f:121::a1 1.160ms
3: 2a12:d8c0:101f:103::1 9.008ms
4: 2a06:7d40::1 10.718ms reached
Resume: pmtu 1500 hops 4 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 | 0.2ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | - | - | |
| 4 | * | - | 50% | - | |
| 5 | 100ge0-0-0-5.core1.vie1.he.net 2001:470:0:578::1 | 9.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | 100ge0-0-0-19.core2.fra2.he.net 2001:470:0:7ef::1 | 20.4ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | be2.core2.ams2.he.net 2001:470:e:43::1 | 25.6ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | 2a06:7d40::1 | 27.9ms | 0% | AS34428 | EIGHTROUTE - Giulio Lo Presti, IT |
Rate-limited ICMPv6: hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: fw1-lju.6connect.com 0.380ms
1: fw1-lju.6connect.com 0.626ms
2: no reply
3: no reply
4: e0-1.core1.lju1.he.net 1.909ms
5: 100ge0-0-0-5.core1.vie1.he.net 8.533ms
6: 100ge0-0-0-19.core2.fra2.he.net 19.237ms asymm 7
7: no reply
8: be2.core2.ams2.he.net 25.837ms
9: 2a06:7d40::1 23.396ms reached
Resume: pmtu 1500 hops 9 back 6