AS overview
Test target: 2a02:2888:8265:192::2 · alpha-leo.fastnet.eu · address space: PA · prefixes announced: 3
prefix(es): 2a02:2888::/33, 2a02:2888::/32, 2a02:2888:8000::/33
Targets & per-vantage-point probe results (6 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 | ||
2a02:2888:8265:192::1dns2.fastnet.it | drv | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:2888:8265:192::17gamma.fastnet.eu | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:2888:8265:192::2alpha-leo.fastnet.eu | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:2888:8265:193::252rigel.fastnet.eu | MX | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:2888:8265:193::253beta-leo.fastnet.eu | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:2888:8265:193::36fastnet.it | drv | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - | ✓ | ✓ | open | open | - |
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 2013-05-28. IPv6 LAN: 2001:7f8:b:100:1d1:a5d0:8265:85. Locations: -.
RPKI & ASPA
3 of 3 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a02:2888::/33 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS8265 /32 maxLen 48 (ripe) |
2a02:2888::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS8265 /32 maxLen 48 (ripe) |
2a02:2888:8000::/33 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS8265 /32 maxLen 48 (ripe) |
ASPA: this AS has published an ASPA record listing 2 upstream provider(s) that are authorized to propagate routes from it: AS6453, AS51569. 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
At least one router inside AS8265's announced prefix replied during the random-target probe. Hop(s): 2a02:2888:8265:100:195:96:194:105, 2a02:2888:8265:100:195:96:194:106, 2a02:2888:8265:1ff:0:5:1569:1. These are candidate targets for direct testing.
ICMPv6 Type 2 (Packet Too Big) acceptance - active test
Vantage points disagree about Type 2 acceptance - transit ASes on one path may be filtering Type 2 even though the destination's stack accepts it on another path:
- NL host (go6lab): Type 2 honored. Forged PTB accepted; next response shrunk. (ICMPv6 Echo + forged PTB)
- ITA host (Karsolink): inconclusive: no Echo Reply to 1300-byte probe. (ICMPv6 Echo + forged PTB)
- SLO host (6connect): Type 2 honored. Forged PTB accepted; next response shrunk. (ICMPv6 Echo + forged PTB)
Why they disagree - reachability mismatch: One vantage couldn't drive a flow at all to this destination (no Echo Reply or no responding TCP port), so the active test had no behavioural change to observe. The other vantage's verdict is the only meaningful one here.
Failure detail — what to grep in your logs
| vantage | our source | your target | method | result | tested (UTC) |
|---|---|---|---|---|---|
| go6lab | 2a00:8642:42::75 | 2a02:2888:8265:192::2 | icmp6-echo | honored | 2026-05-30T12:44:05Z |
| karsolink | 2a12:d8c0:105a:9001::a154 | 2a02:2888:8265:192::2 | icmp6-echo | no_echo | 2026-05-30T12:50:01Z |
| odin | 2607:fae0:a000::42 | 2a02:2888:8265:192::2 | icmp6-echo | honored | 2026-05-30T12:43:54Z |
Attempt log (go6lab):
icmp6-echo→ honored (size_before=1460, size_after=None)dns-tcp→ inconclusive (size_before=156, size_after=None): max DNS-over-TCP segment 156B; not big enough to test PMTU shrinktls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (karsolink):
icmp6-echo→ no_echo: no Echo Reply to 1300-byte probedns-tcp→ inconclusive (size_before=156, size_after=None): max DNS-over-TCP segment 156B; not big enough to test PMTU shrinktls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
Attempt log (odin):
icmp6-echo→ honored (size_before=1460, size_after=None)dns-tcp→ inconclusive (size_before=156, size_after=None): max DNS-over-TCP segment 156B; not big enough to test PMTU shrinktls→ no_tcp: TLS connect failedhttp→ no_tcp: tcp/80 not open
To match the corresponding ICMPv6 packet on your side (host firewall, AS edge, or transit tap), look for our PTBs around the timestamps above:
sudo tcpdump -i any -n -e 'icmp6 and ip6[40] = 2 and (src host 2607:fae0:a000::42 or src host 2a00:8642:42::75 or src host 2a12:d8c0:105a:9001::a154)'
If you see our PTBs arriving but the destination's TCP/Echo flow does not shrink, the drop is in the destination kernel (cause 3 below). If you don't see them at all, drop is upstream of you (cause 2). If you only see them from one of our two source IPs, the drop is path-asymmetric — one transit on the asymmetric route is filtering, the other is not.
Where the path divergence is
Per-vantage probe + verdict (headline):
- go6lab: probe
icmp6-echo→ verdicthonored - karsolink: probe
icmp6-echo→ verdictno_echo - odin: probe
icmp6-echo→ verdicthonored
Full per-method matrix (all four methods run at each vantage):
| vantage | icmp6-echo | dns-tcp | tls | http |
|---|---|---|---|---|
| go6lab | honored | inconclusive | no_tcp | no_tcp |
| karsolink | no_echo | inconclusive | no_tcp | no_tcp |
| odin | honored | inconclusive | no_tcp | no_tcp |
✓ All vantages agree on method(s): icmp6-echo — the headline-method spread above is dispatcher noise, not a real Type 2 disagreement.
These vantage-level disagreements are rooted somewhere in the forward paths. Joining each per-vantage traceroute against the IP→AS lookup from our global yarrp mesh, the first hop where the paths land in different ASes is the most likely site of the offending filter / unreachable AS / Type 2 drop.
Suspect transit ASes (ranked by how often they appear at the divergence point on the path of the worse-classifying vantage): AS174, AS1299, AS50673.
- From go6lab (open/Type-2=honored) the path enters AS174 at hop 7; from karsolink (open/Type-2=no_echo) the same hop is in AS1299. Last common AS: AS8265. The disagreement is most likely rooted in one of those two transit ASes.
- From go6lab (open/Type-2=honored) the path enters AS50673 at hop 3; from odin (open/Type-2=honored) the same hop is in AS56635. Last common AS: AS8265. The disagreement is most likely rooted in one of those two transit ASes.
- From karsolink (open/Type-2=no_echo) the path enters AS41327 at hop 5; from odin (open/Type-2=honored) the same hop is in AS6939. Last common AS: AS8265. The disagreement is most likely rooted in one of those two transit ASes.
Diagnosis is path-level, not packet-level: it tells you which transit AS is the prime suspect, not exactly which firewall rule is to blame. Use the tracepath6 output below (when available) for per-hop PMTU evidence on the same path.
✨ Diagnostic interpretation
Per-hop PTB acceptance walk
From the local vantage, we walk the forward path hop-by-hop, sending each hop a 1500-byte ICMPv6 Echo, then a forged PTB (MTU=1280) sourced from us, then another 1500-byte Echo. If the second reply arrives fragmented or smaller, that hop honoured the PTB. If unchanged, it didn't. The first ✗ in an otherwise-✓ path is the most likely filter location. Cross-country aggregation: see the global PTB filter atlas for transit ASes ranked by filter rate across all measurements.
First break at hop 8: AS1299 (TWELVE99 - Arelion Sweden AB, SE) -- this is the most likely site of the offending PTB filter. Hop IP: 2001:2035:0:26bf::1.
| # | hop IP | AS | Holder | PTB acceptance |
|---|---|---|---|---|
| 1 | 2607:fae0:a000::2 | AS8038 | 6CONNECT - 6connect, Inc., US | - skipped (CoPP) |
| 2 | 2607:fae0:a000:2::2 | AS8038 | 6CONNECT - 6connect, Inc., US | - skipped (CoPP) |
| 3 | 2a03:a100:0:201:1::1 | AS56635 | XENYA - XENYA inzeniring, proizvodnja in | ✓ honored |
| 4 | 2001:470:1:5be::1 | AS6939 | HURRICANE - Hurricane Electric LLC, US | ? no_response |
| 5 | 2001:470:0:578::1 | AS6939 | HURRICANE - Hurricane Electric LLC, US | ? no_response |
| 6 | 2001:470:0:7ef::1 | AS6939 | HURRICANE - Hurricane Electric LLC, US | ? no_response |
| 7 | 2001:470:e:5a::2 | AS6939 | HURRICANE - Hurricane Electric LLC, US | ? no_response |
| 8 | 2001:2035:0:26bf::1 | AS1299 | TWELVE99 - Arelion Sweden AB, SE | ✗ not_honored |
| 9 | 2001:2034:a:1e3 | - | - (invalid IP) | |
| 10 | 2001:2034:a:36c::1 | AS1299 | TWELVE99 - Arelion Sweden AB, SE | ✗ not_honored |
| 11 | 2a05:b580:1000:1:1200::2 | AS51569 | FIBERING - Fiberwide S.p.a., IT | ? no_response |
| 12 | 2a05:b580:1000:1:1200::2 | AS51569 | FIBERING - Fiberwide S.p.a., IT | ? no_response |
| 13 | 2a02:2888:8265:100:195:96:194:106 | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT | ? no_response |
| 14 | 2a02:2888:8265:100:195:96:194:105 | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT | ? no_response |
| 15 | * | - | - (no IP) | |
| 16 | * | - | - (no IP) | |
| 17 | * | - | - (no IP) | |
| 18 | * | - | - (no IP) | |
| 19 | * | - | - (no IP) | |
| 20 | * | - | - (no IP) | |
| 21 | * | - | - (no IP) | |
| 22 | * | - | - (no IP) | |
| 23 | * | - | - (no IP) | |
| 24 | * | - | - (no IP) |
Tests host-mode PTB acceptance (PTBs aimed at the hop itself). A router that honours PTBs to itself can still be filtering PTBs transiting through it; this is one indicator, not proof of full PTB transparency. Hops in CoPP-rate-limit ranges are skipped to avoid false signals.
tracepath6 per-hop PMTU drilldown
For each target where Type 2 verdicts disagreed across vantages, tracepath -6 ran from every vantage to capture per-hop PMTU evolution along that vantage's actual forward path. A pmtu change entry on a hop means that hop's router generated a PTB and we observed the shrink; absence of any change combined with a not_honored verdict suggests a router somewhere downstream is silently dropping >MTU packets (an RFC 4890 violation) rather than sending a PTB.
Target 2a02:2888:8265:193::36
go6lab — verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a00:8642:1000:f000::1 | |
| 3 | 2a00:1ca8:1::194 | |
| 4 | 2a03:3f40::10:41 | |
| 5 | <span class='muted'>no reply</span> | |
| 6 | <span class='muted'>no reply</span> | |
| 7 | 2001:978:3::26 | |
| 8 | 2001:2034:a:2f4:: | |
| 9 | <span class='muted'>no reply</span> | |
| 10 | 2a05:b580:1000:1:1200::2 | |
| 11 | 2a02:2888:8265:1ff:0:5:1569:1 | |
| 12 | 2a02:2888:8265:100:195:96:194:106 | |
| 13 | 2a02:2888:8265:1ff:0:5:1569:1 | |
| 14 | 2a02:2888:8265:100:195:96:194:105 | |
| 15 | 2a02:2888:8265:209:be24:11ff:fed7:79a7 | |
| 16 | <span class='muted'>no reply</span> | |
| 17 | <span class='muted'>no reply</span> | |
| 18 | <span class='muted'>no reply</span> | |
| 19 | <span class='muted'>no reply</span> | |
| 20 | <span class='muted'>no reply</span> | |
| 21 | <span class='muted'>no reply</span> | |
| 22 | <span class='muted'>no reply</span> | |
| 23 | <span class='muted'>no reply</span> | |
| 24 | <span class='muted'>no reply</span> |
karsolink — verdict not_honored
verdict = not_honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2a12:d8c0:109f:121::a1 | |
| 3 | 2a12:d8c0:101f:6::1 | |
| 4 | 2a03:b020:1:51::a | |
| 5 | 2a03:b020::225 | |
| 6 | 2001:2035:0:19e1::1 | |
| 7 | 2001:2035:0:c80::2 | |
| 8 | 2a05:b580:1000:1:1100::2 | |
| 9 | 2a02:2888:8265:1ff:0:5:1569:1 | |
| 10 | 2a02:2888:8265:100:195:96:194:105 | |
| 11 | 2a02:2888:8265:209:be24:11ff:fed7:79a7 | |
| 12 | <span class='muted'>no reply</span> | |
| 13 | <span class='muted'>no reply</span> | |
| 14 | <span class='muted'>no reply</span> | |
| 15 | <span class='muted'>no reply</span> | |
| 16 | <span class='muted'>no reply</span> | |
| 17 | <span class='muted'>no reply</span> | |
| 18 | <span class='muted'>no reply</span> | |
| 19 | <span class='muted'>no reply</span> | |
| 20 | <span class='muted'>no reply</span> | |
| 21 | <span class='muted'>no reply</span> | |
| 22 | <span class='muted'>no reply</span> | |
| 23 | <span class='muted'>no reply</span> | |
| 24 | <span class='muted'>no reply</span> |
odin — verdict honored
verdict = honored; final pmtu = 1500
| # | hop IP | pmtu change |
|---|---|---|
| 1 | <span class='muted'>no reply</span> | |
| 2 | 2607:fae0:a000:2::2 | |
| 3 | 2a03:a100:0:201:1::1 | |
| 4 | 2001:470:1:5be::1 | |
| 5 | 2001:470:0:578::1 | |
| 6 | 2001:470:0:7ef::1 | |
| 7 | 2001:470:e:5a::2 | |
| 8 | 2001:2035:0:26bf::1 | |
| 9 | 2001:2034:a:1e3:: | |
| 10 | 2001:2034:a:1d7::1 | |
| 11 | 2001:2035:0:c80::2 | |
| 12 | 2a02:2888:8265:1ff:0:5:1569:1 | |
| 13 | 2a02:2888:8265:1ff:0:5:1569:1 | |
| 14 | 2a02:2888:8265:100:195:96:194:106 | |
| 15 | 2a02:2888:8265:209:be24:11ff:fed7:79a7 | |
| 16 | <span class='muted'>no reply</span> | |
| 17 | <span class='muted'>no reply</span> | |
| 18 | <span class='muted'>no reply</span> | |
| 19 | <span class='muted'>no reply</span> | |
| 20 | <span class='muted'>no reply</span> | |
| 21 | <span class='muted'>no reply</span> | |
| 22 | <span class='muted'>no reply</span> | |
| 23 | <span class='muted'>no reply</span> | |
| 24 | <span class='muted'>no reply</span> |
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 | 0.8ms | 0% | AS203993 | STEFFANN-DC-AS - S.J.M. Steffann, NL |
| 2 | * | - | 0%* | - | |
| 3 | 2a00:1ca8:1::194 | 2.1ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 2.4ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | * | - | - | - | |
| 6 | * | - | 80% | - | |
| 7 | 2001:978:3::ca | 3.9ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 8 | 2001:2034:a:17a | 3.7ms | 0% | - | |
| 9 | * | - | - | - | |
| 10 | mno-b3-link.ip.twelve99.net 2001:2034:a:122::1 | 29.0ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 11 | fiberwidespa-ic-384502.ip.twelve99-cust.net 2001:2035:0:c80::2 | 29.5ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 12 | 2a05:b580:1000:1:1200::2 | 28.9ms | 0% | AS51569 | FIBERING - Fiberwide S.p.a., IT |
| 13 | 2a02:2888:8265:1ff:0:5:1569:1 | 39.8ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 14 | if-vl5-tejat-dist-an.fastnet.it 2a02:2888:8265:100:195:96:194:106 | 46.2ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.039ms pmtu 1500
1: 2a00:8642:42::3 1.823ms
1: 2a00:8642:42::3 2.477ms
2: no reply
3: 2a00:1ca8:1::194 3.656ms
4: 2a03:3f40::10:41 3.898ms
5: no reply
6: no reply
7: 2001:978:3::ca 4.942ms asymm 6
8: adm-bb2-link.ip.twelve99.net 4.251ms asymm 7
9: no reply
10: 2a05:b580:1000:1:1200::2 31.631ms asymm 11
11: fiberwidespa-ic-384502.ip.twelve99-cust.net 31.645ms asymm 10
12: if-vl5-diosocuri-dist-an.fastnet.it 38.030ms asymm 11
13: 2a02:2888:8265:1ff:0:5:1569:1 36.747ms asymm 10
14: no reply
15: 2a02:2888:8265:209::212 36.380ms asymm 13
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500 From ITA host (Karsolink) open
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | * | - | - | - | |
| 3 | * | - | 90% | - | |
| 4 | 2a03:b020:1:51::a | 10.2ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 5 | 2a03:b020::225 | 10.3ms | 0% | AS41327 | FIBERTELECOM-AS - Fiber Telecom S.p.A., IT |
| 6 | mno-b3-link.ip.twelve99.net 2001:2035:0:19e1::1 | 10.4ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 7 | fiberwidespa-ic-384502.ip.twelve99-cust.net 2001:2035:0:c80::2 | 10.2ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 8 | 2a05:b580:1000:1:1100::2 | 10.2ms | 0% | AS51569 | FIBERING - Fiberwide S.p.a., IT |
| 9 | 2a02:2888:8265:1ff:0:5:1569:1 | 25.2ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 10 | if-vl5-tejat-dist-an.fastnet.it 2a02:2888:8265:100:195:96:194:106 | 26.1ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 11 | 2a02:2888:8265:209::212 | 24.0ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 12 | * | - | 0% | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.030ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.949ms
1: karsolink-01.net.karsolink.com 1.103ms
2: 2a12:d8c0:109f:121::a1 1.212ms
3: 2a12:d8c0:101f:6::1 10.452ms
4: 2a03:b020:1:51::a 10.675ms
5: 2a03:b020::225 11.040ms asymm 6
6: mno-b3-link.ip.twelve99.net 11.906ms asymm 7
7: fiberwidespa-ic-384502.ip.twelve99-cust.net 10.797ms asymm 8
8: 2a05:b580:1000:1:1200::2 11.193ms asymm 9
9: 2a02:2888:8265:1ff:0:5:1569:1 25.849ms asymm 5
10: if-vl5-tejat-dist-an.fastnet.it 30.052ms asymm 5
11: 2a02:2888:8265:209::212 24.590ms asymm 7
12: no reply
13: no reply
14: no reply
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
Too many hops: pmtu 1500
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 | ccr-to-fw-ccr1-gw-lju.6connect.com 2607:fae0:a000:2::2 | 0.4ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 3 | 2a03:a100:0:201:1::1 | 0.9ms | 60% | AS56635 | XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI |
| 4 | e0-1.core1.lju1.he.net 2001:470:1:5be::1 | 1.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | 100ge0-0-0-5.core1.vie1.he.net 2001:470:0:578::1 | 8.3ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | 100ge0-0-0-19.core2.fra2.he.net 2001:470:0:7ef::1 | 18.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 19.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | ffm-b14-link.ip.twelve99.net 2001:2035:0:26bf::1 | 19.2ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 9 | 2001:2034:a:1e3 | 17.7ms | 0% | - | |
| 10 | mno-b3-link.ip.twelve99.net 2001:2034:a:36c::1 | 27.1ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 11 | 2a05:b580:1000:1:1200::2 | 26.5ms | 0% | AS51569 | FIBERING - Fiberwide S.p.a., IT |
| 12 | 2a05:b580:1000:1:1200::2 | 26.3ms | 0% | AS51569 | FIBERING - Fiberwide S.p.a., IT |
| 13 | if-vl5-tejat-dist-an.fastnet.it 2a02:2888:8265:100:195:96:194:106 | 34.5ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 14 | if-vl5-diosocuri-dist-an.fastnet.it 2a02:2888:8265:100:195:96:194:105 | 34.2ms | 0% | AS8265 | FASTNET-BKB-ASN - FASTNET S.R.L., IT |
| 15 | * | - | 0% | - | |
| 16 | * | - | 0% | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - | |
| 23 | * | - | - | - | |
| 24 | * | - | - | - |
Rate-limited ICMPv6: hop 3 (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 2.672ms
1: fw1-lju.6connect.com 4.733ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 1.694ms
3: 2a03:a100:0:201:1::1 1.808ms
4: e0-1.core1.lju1.he.net 2.063ms
5: 100ge0-0-0-5.core1.vie1.he.net 7.927ms
6: 100ge0-0-0-19.core2.fra2.he.net 19.398ms asymm 7
7: be3.core4.fra1.he.net 21.940ms asymm 8
8: ffm-b14-link.ip.twelve99.net 22.492ms asymm 11
9: ffm-bb2-link.ip.twelve99.net 18.639ms asymm 13
10: fiberwidespa-ic-384502.ip.twelve99-cust.net 27.466ms asymm 13
11: fiberwidespa-ic-384502.ip.twelve99-cust.net 27.186ms asymm 13
12: 2a02:2888:8265:1ff:0:5:1569:1 34.029ms asymm 10
13: 2a02:2888:8265:1ff:0:5:1569:1 32.528ms asymm 10
14: 2a02:2888:8265:209::212 33.386ms asymm 11
15: 2a02:2888:8265:209::212 32.916ms asymm 11
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
23: no reply
24: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500