AS overview
Test target: 2a0f:57c0:200::ba01 · ns1.techdigital.it · address space: unknown · prefixes announced: 1
prefix(es): 2a0f:57c0::/32
Targets & per-vantage-point probe results (2 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 | ||
2a0f:57c0:200::ba01ns1.techdigital.it | drv | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | refused | refused | ✓ | ✓ | ✓ | refused | refused | ✓ |
2a0f:57c0:200::ba02ns2.techdigital.it | drv | ✓ | ✓ | ? | ? | ✓ | ✓ | ✓ | 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 2020-04-07. IPv6 LAN: 2001:7f8:b:100:1d1:a519:9536:250. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a0f:57c0::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS199536 /32 maxLen 32 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS199536's announced prefix replied during the random-target probe. Hop(s): 2a0f:57c0:7006::. 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 2026-05-30T12:47:58Z
From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 43.5ms
4/4
Echo 1500B (DF) 43.5ms
yes
Type 1 dest-unreach
-
TCP responds on
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 | 1.8ms | 0%* | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 1.9ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 1.8ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | * | - | 90% | - | |
| 6 | * | - | 70% | - | |
| 7 | be3343.ccr41.fra05.atlas.cogentco.com 2001:550:0:1000::9a36:3e8d | 11.6ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 8 | * | - | - | - | |
| 9 | port-channel5892.ccr92.mil02.atlas.cogentco.com 2001:550:0:1000::9a36:3ed9 | 25.1ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 10 | be2155.rcr71.vce01.atlas.cogentco.com 2001:550:0:1000::9a36:2612 | 30.0ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 11 | be2440.rcr51.rom01.atlas.cogentco.com 2001:550:0:1000::9a36:3832 | 35.9ms | 60% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 12 | be2438.nr01.b041120-1.rom01.atlas.cogentco.com 2001:550:0:1000::9a19:9a | 36.9ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 13 | 2001:978:2:2a::60:2 | 38.4ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 14 | 2a0f:57c0:7006 | 44.1ms | 0% | - | |
| 15 | host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:ff00::1 | 44.4ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 16 | host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:200::1 | 38.3ms | - | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 17 | dns1.ipv6.net.techdigital.it 2a0f:57c0:200::ba01 | 47.6ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
Rate-limited ICMPv6: hop 5, hop 6, hop 11 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.033ms pmtu 1500
1: 2a00:8642:42::3 1.479ms
1: 2a00:8642:42::3 1.334ms
2: gw.friends.steffann.nl 2.479ms
3: 2a00:1ca8:1::194 2.644ms
4: 2a03:3f40::10:41 2.382ms
5: no reply
6: no reply
7: be3343.ccr41.fra05.atlas.cogentco.com 12.054ms
8: be7944.ccr22.muc03.atlas.cogentco.com 16.600ms
9: port-channel5892.ccr92.mil02.atlas.cogentco.com 25.437ms
10: be2434.rcr71.vce01.atlas.cogentco.com 30.473ms
11: no reply
12: be2438.nr01.b041120-1.rom01.atlas.cogentco.com 36.731ms
13: 2001:978:2:2a::60:2 38.853ms asymm 11
14: host-2a0f-57c0-7006-0000-0000-0000-0000-0000.net.techdigital.it 43.816ms asymm 10
15: host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 44.564ms asymm 11
16: host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 39.125ms asymm 12
17: dns1.ipv6.net.techdigital.it 47.781ms reached
Resume: pmtu 1500 hops 17 back 13 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 22.5ms
4/4
Echo 1500B (DF) 22.7ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | * | - | 10% | - | |
| 4 | techdigital-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:a519:9536:250 | 9.2ms | 0% | - | NA |
| 5 | 2a0f:57c0:7006 | 22.4ms | 0% | - | |
| 6 | host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:ff00::1 | 22.2ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 7 | host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:200::1 | 22.3ms | - | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 8 | dns1.ipv6.net.techdigital.it 2a0f:57c0:200::ba01 | 22.4ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, 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 0.966ms
3: 2a12:d8c0:101f:103::1 8.723ms
4: techdigital-v6.mix-it.net 9.561ms
5: host-2a0f-57c0-7006-0000-0000-0000-0000-0000.net.techdigital.it 23.105ms
6: host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 22.587ms
7: host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 22.812ms
8: dns1.ipv6.net.techdigital.it 23.048ms reached
Resume: pmtu 1500 hops 8 back 8 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 24.1ms
4/4
Echo 1500B (DF) 32.4ms
yes
Type 1 dest-unreach
443,80
TCP responds on
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 | 2a03:a100:0:201:1::1 | 0.6ms | 0% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 1.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | * | - | - | - | |
| 6 | port-channel1.core1.zag2.he.net 2001:470:0:2ea::2 | 4.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | * | - | - | - | |
| 8 | * | - | - | - | |
| 9 | 2a0f:57c0:7006 | 24.6ms | 0% | - | |
| 10 | host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:ff00::1 | 24.4ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 11 | host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 2a0f:57c0:200::1 | 25.7ms | - | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
| 12 | dns1.ipv6.net.techdigital.it 2a0f:57c0:200::ba01 | 24.2ms | 0% | AS199536 | TECHDIGITAL-AS - Angelastri Giuseppe trading as TechDigital, IT |
tracepath -6
1?: [LOCALHOST] 0.044ms pmtu 1500
1: fw1-lju.6connect.com 0.463ms
1: fw1-lju.6connect.com 0.451ms
2: no reply
3: 2a03:a100:0:201:1::1 1.059ms
4: e0-1.core1.lju1.he.net 1.948ms
5: no reply
6: port-channel1.core1.zag2.he.net 3.811ms
7: no reply
8: no reply
9: host-2a0f-57c0-7006-0000-0000-0000-0000-0000.net.techdigital.it 24.836ms asymm 7
10: host-2a0f-57c0-ff00-0000-0000-0000-0000-0001.net.techdigital.it 24.500ms asymm 8
11: host-2a0f-57c0-0200-0000-0000-0000-0000-0001.net.techdigital.it 24.217ms asymm 9
12: dns1.ipv6.net.techdigital.it 24.394ms reached
Resume: pmtu 1500 hops 12 back 10