AS overview
Test target: 2a06:f2c0:0:2:185:135:102:239 · ns0.teknonet.biz · address space: PA · prefixes announced: 1
prefix(es): 2a06:f2c0::/29
Targets & per-vantage-point probe results (3 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:f2c0:0:2:185:135:102:238ns1.teknonet.biz | NS | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ |
2a06:f2c0:0:2:185:135:102:239ns0.teknonet.biz | NS | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ |
2a06:f2c0:0:4000:85:116:135:253ns2.teknonet.it | NS | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | ? | ? | ✓ |
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 2020-06-04. IPv6 LAN: 2001:7f8:b:100:1d1:a520:2975:93. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a06:f2c0::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS202975 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 14 arbitrary IPv6 address(es) inside AS202975's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:470:0:2ea::2 at hop 6 - that router answers ICMPv6 Echo. This is not in AS202975'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 2026-05-30T12:45:58Z
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 | 1.3ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | speed-ix.fibertelecom.it 2001:7f8:b7::a504:1327:1 | 3.4ms | 0% | - | NA |
| 4 | 2a03:b020::247 | 19.7ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 5 | 2a03:b020:1:5::b | 19.8ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 6 | 2a06:f2c0:0:2:185:135:102:239 | 19.5ms | 0% | AS202975 | teknonet - Teknonet s.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.034ms pmtu 1500
1: 2a00:8642:42::3 1.349ms
1: 2a00:8642:42::3 1.547ms
2: gw.friends.steffann.nl 2.274ms
3: speed-ix.fibertelecom.it 3.815ms
4: 2a03:b020::247 20.299ms
5: 2a03:b020:1:5::b 19.866ms
6: ??? 19.428ms !H
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 | * | - | - | - | |
| 2 | * | - | 0%* | - | |
| 3 | * | - | 20% | - | |
| 4 | teknonet-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a520:2975:93 | 9.6ms | 0% | - | NA |
| 5 | 2a06:f2c0:0:2:185:135:102:239 | 8.9ms | 0% | AS202975 | teknonet - Teknonet 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] 0.031ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.857ms
1: karsolink-01.net.karsolink.com 0.715ms
2: 2a12:d8c0:109f:121::a1 0.756ms
3: 2a12:d8c0:101f:103::1 9.018ms
4: teknonet-v6.mix-it.net 9.507ms
5: ??? 9.448ms !H
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 | * | - | - | - | |
| 3 | 2a03:a100:0:201:1::1 | 2.4ms | 30% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 2.0ms | 80% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | * | - | - | - | |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 7.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | teknonet-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a520:2975:93 | 11.1ms | 0% | - | NA |
| 9 | 2a06:f2c0:0:2:185:135:102:239 | 10.3ms | 0% | AS202975 | teknonet - Teknonet s.r.l., IT |
Rate-limited ICMPv6: hop 3, hop 4 (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 0.538ms
1: fw1-lju.6connect.com 0.808ms
2: no reply
3: no reply
4: e0-1.core1.lju1.he.net 5.088ms
5: no reply
6: port-channel1.core1.zag2.he.net 3.893ms
7: no reply
8: teknonet-v6.mix-it.net 13.464ms asymm 7
9: ??? 10.877ms !H
Resume: pmtu 1500