AS overview
Test target: 2a02:688:800::3 · dns.uni.it · address space: mixed · prefixes announced: 1
prefix(es): 2a02:688::/32
Targets & per-vantage-point probe results (2 target(s) across 7 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 | SRB host (SOX, Belgrade) | DE host (Berlin) | DE host (Düsseldorf) | NL host (go6lab) | ITA host (Karsolink) | SLO host (6connect) | SLO host (T-2) | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ||
2a02:688:800::3dns.uni.it | NS | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | ? | ? | - |
2a02:688:801::3dns2.uni.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 2011-10-18. IPv6 LAN: 2001:7f8:b:100:1d1:a5d0:5394:12. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a02:688::/32 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS5394 /32 maxLen 32 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
At least one router inside AS5394's announced prefix replied during the random-target probe. Hop(s): 2a02:688:ffff:b710:bb2::221, 2a02:688:ffff:b710:bb2::222. 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 2026-09-23T12:03:07Z
Multi-vantage path map
Every hop of all vantages’ traceroutes toward the target, drawn left→right, grouped into per-AS bubbles (a hop seen from several vantages is one shared bubble, so converging paths merge). It answers two questions per vantage — shown on each source bubble as echo ✓/⚠/✗ · trace ✓/✗: did the destination reply to ICMPv6 Echo (✓ honored, ⚠ replied but PTB not honored, ✗ no reply), and did the traceroute reach it. A line to the target is drawn only when that vantage got an echo reply — solid if the PTB was honored, dashed if not (reachable but a broken-PMTUD / RFC 4890 violation). The path depth still shows how far the traceroute itself got, and runs of unanswered (* *) hops collapse into one dashed “silent” bubble. Open full size ↗
- ● SRB host (SOX, Belgrade)
- ● DE host (Berlin)
- ● DE host (Düsseldorf)
- ● NL host (go6lab)
- ● ITA host (Karsolink)
- ● SLO host (6connect)
- ● SLO host (T-2)
- ── solid line = echo reply, PTB honored (clean reach)
- — — dashed line = echo reply but PTB not honored (RFC 4890 violation)
- no line = no echo reply (never reached)
- ◉ target: green = clean, amber = reachable-but-violation / unreachable
- ⚠ suspected drop AS
- ⋯ silent (unanswered) hops
- ● IXP hop
From SRB host (SOX, Belgrade) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 28.0ms
4/4
Echo 1500B (DF) 28.0ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a09:ab81::1 | 0.4ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | sox-pn.sox.rs 2001:7f8:1e:8::3a | 0.3ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | e0-33.core2.beg1.he.net 2001:470:1:6e5::1 | 1.1ms | 70% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 4 | e0-34.core2.bts1.he.net 2001:470:0:33f::2 | 8.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 5 | 100ge0-0-0-2.core1.vie1.he.net 2001:470:0:412::1 | 11.8ms | 40% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 6 | * | - | - | - | |
| 7 | port-channel2.core2.rom1.he.net 2001:470:0:753::1 | 28.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | unidata.rom.namex.it 2001:7f8:10::5394 | 28.2ms | 0% | - | NA |
| 9 | 2a02:688:ffff:b710:bb2::222 | 28.2ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 10 | 2a02:688:ffff:b710:bb2::221 | 28.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 11 | 2a02:688:ffff:b710::22 | 27.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 12 | 2a02:688:ffff:e91e::a | 27.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 13 | * | - | 0% | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
Rate-limited ICMPv6: hop 3, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.020ms pmtu 1500
1: _gateway 0.355ms
1: _gateway 0.870ms
2: sox-pn.sox.rs 0.264ms
3: e0-33.core2.beg1.he.net 0.931ms
4: e0-34.core2.bts1.he.net 8.421ms
5: 100ge0-0-0-2.core1.vie1.he.net 12.619ms
6: no reply
7: port-channel2.core2.rom1.he.net 28.615ms
8: unidata.rom.namex.it 28.732ms
9: 2a02:688:ffff:b710:bb2::222 28.811ms
10: 2a02:688:ffff:b710:bb2::221 28.145ms
11: 2a02:688:ffff:b710::22 28.593ms asymm 10
12: 2a02:688:ffff:e91e::a 28.009ms asymm 11
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Berlin) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 30.0ms
4/4
Echo 1500B (DF) 30.1ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-13-178.gw01.ber01.as59645.net 2a06:d1c1:100:b::1 | 0.2ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.7ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-150.cr10.fra01.lwlcom.net 2a00:c380:b200:230::174 | 9.9ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae6-3257.cr5-fra2.ip6.gtt.net 2001:668:0:3:ffff:1:0:3d5d | 9.4ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 5 | 2001:668:0:2:ffff:0:5995:8aba | 17.7ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 6 | 2001:668:0:3:ffff:1:0:39b6 | 20.4ms | 0% | AS3257 | GTT-BACKBONE - GTT Communications Inc., US |
| 7 | 2a02:688:ffff:b710:bb2::222 | 30.5ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 8 | 2a02:688:ffff:b710:bb2::221 | 30.2ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 9 | 2a02:688:ffff:b710::22 | 29.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 10 | 2a02:688:ffff:e91e::a | 35.0ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 11 | * | - | 0% | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.022ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.498ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.408ms
2: ae0-2453.cr10.ber01.lwlcom.net 0.986ms
3: ae0-150.cr10.fra01.lwlcom.net 10.480ms asymm 7
4: ae6-3257.cr5-fra2.ip6.gtt.net 9.563ms asymm 9
5: 2001:668:0:2:ffff:0:5995:8aba 17.932ms asymm 9
6: 2001:668:0:3:ffff:1:0:39b6 51.804ms asymm 9
7: 2a02:688:ffff:b710:bb2::222 30.357ms asymm 11
8: 2a02:688:ffff:b710:bb2::221 30.332ms asymm 12
9: 2a02:688:ffff:b710::9e 30.017ms asymm 12
10: 2a02:688:ffff:e91e::a 30.033ms asymm 13
11: no reply
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From DE host (Düsseldorf) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 22.2ms
4/4
Echo 1500B (DF) 22.3ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-12-142.gw01.dus01.as59645.net 2a06:d1c1:100:d::1 | 0.1ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 6.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 3 | lag10-h5f01.agr4-dus1.bb.wiit.network 2001:4ba0:ffe9:7c::1 | 12.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 4 | lag11.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:115::3 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | ddf-b4-link.ip.twelve99.net 2001:2035:0:9fb::1 | 0.7ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 6 | ddf-b5-link.ip.twelve99.net 2001:2034:a:336::1 | 2.8ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 7 | 2001:2034:a:15a | 21.6ms | 40% | - | |
| 8 | mno-b3-link.ip.twelve99.net 2001:2034:a:1d7::1 | 13.7ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 9 | * | - | - | - | |
| 10 | unidata-ic-395975.ip.twelve99-cust.net 2001:2035:0:1c60::2 | 23.3ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 11 | 2a02:688:ffff:b710:bb2::222 | 23.7ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 12 | 2a02:688:ffff:b710:bb2::221 | 22.3ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 13 | 2a02:688:ffff:b710::9e | 23.0ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 14 | 2a02:688:ffff:e91e::a | 22.4ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 15 | * | - | 0% | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
Rate-limited ICMPv6: hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.029ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.380ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.331ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 15.812ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.239ms
5: ddf-b4-link.ip.twelve99.net 0.739ms
6: ddf-b5-link.ip.twelve99.net 1.638ms
7: ffm-bb1-link.ip.twelve99.net 21.572ms asymm 6
8: mno-b3-link.ip.twelve99.net 13.248ms asymm 5
9: no reply
10: unidata-ic-395975.ip.twelve99-cust.net 23.577ms asymm 9
11: 2a02:688:ffff:b710:bb2::222 22.921ms asymm 10
12: 2a02:688:ffff:b710:bb2::221 22.735ms asymm 11
13: 2a02:688:ffff:b710::22 22.563ms asymm 11
14: 2a02:688:ffff:e91e::a 22.497ms asymm 12
15: no reply
16: no reply
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500 From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 43.7ms
4/4
Echo 1500B (DF) 41.7ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 1.2ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 3.8ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | 2a00:1ca8:1::194 | 4.5ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 4 | 2a03:3f40::10:41 | 2.8ms | 0% | AS50673 | Serverius-as - Serverius Holding B.V., NL |
| 5 | 2001:978:2:40::3:1 | 3.1ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 6 | be3458.ccr42.ams03.atlas.cogentco.com 2001:550:0:1000::9a36:27b9 | 7.0ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 7 | 2001:978:3::ca | 4.7ms | 0% | AS174 | COGENT-174 - Cogent Communications, LLC, US |
| 8 | 2001:2034:a:69 | 4.9ms | 50% | - | |
| 9 | * | - | - | - | |
| 10 | mno-b3-link.ip.twelve99.net 2001:2034:a:122::1 | 26.5ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 11 | * | - | - | - | |
| 12 | unidata-ic-395975.ip.twelve99-cust.net 2001:2035:0:1c60::2 | 39.6ms | 0% | AS1299 | TWELVE99 - Arelion Sweden AB, SE |
| 13 | 2a02:688:ffff:b710:bb2::222 | 46.8ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 14 | 2a02:688:ffff:b710:bb2::221 | 39.4ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 15 | 2a02:688:ffff:b710::9e | 41.5ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 16 | 2a02:688:ffff:e91e::a | 44.4ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 17 | * | - | 0% | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
Rate-limited ICMPv6: hop 8 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.040ms pmtu 1500
1: 2a00:8642:42::2 4.007ms
1: 2a00:8642:42::2 4.269ms
2: gw.friends.steffann.nl 3.720ms
3: 2a00:1ca8:1::194 5.924ms
4: 2a03:3f40::10:41 4.647ms
5: 2001:978:2:40::3:1 12.293ms
6: be3458.ccr42.ams03.atlas.cogentco.com 7.933ms
7: 2001:978:3::26 11.090ms asymm 6
8: adm-bb2-link.ip.twelve99.net 9.974ms asymm 7
9: no reply
10: mno-b3-link.ip.twelve99.net 29.435ms asymm 9
11: no reply
12: unidata-ic-395975.ip.twelve99-cust.net 53.543ms asymm 11
13: 2a02:688:ffff:b710:bb2::222 43.311ms
14: 2a02:688:ffff:b710:bb2::221 43.142ms
15: 2a02:688:ffff:b710::22 41.736ms asymm 14
16: 2a02:688:ffff:e91e::a 43.659ms asymm 15
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 19.1ms
3/4
Echo 1500B (DF) 19.3ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | * | - | - | - | |
| 3 | 2a12:d8c0:101f:103::1 | 8.4ms | - | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 4 | unidata.minap.it 2001:7f8:c5::a500:5394:1 | 8.5ms | 0% | AS5394 | Unidata S.p.A. |
| 5 | 2a02:688:ffff:b710:bb2::222 | 18.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 6 | 2a02:688:ffff:b710:bb2::221 | 20.6ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 7 | 2a02:688:ffff:b710::22 | 20.0ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 8 | 2a02:688:ffff:e91e::a | 24.6ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 9 | * | - | 0% | - | |
| 10 | * | - | - | - | |
| 11 | * | - | - | - | |
| 12 | * | - | - | - | |
| 13 | * | - | - | - | |
| 14 | * | - | - | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: no reply
2: no reply
3: 2a12:d8c0:109f:106::a2 3.134ms
4: unidata.topix.it 8.232ms
5: 2a02:688:ffff:b710:bb2::222 20.727ms
6: 2a02:688:ffff:b710:bb2::221 18.932ms
7: 2a02:688:ffff:b710::9e 20.395ms asymm 6
8: 2a02:688:ffff:e91e::a 20.310ms asymm 7
9: no reply
10: no reply
11: no reply
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
Too many hops: pmtu 1500
Resume: pmtu 1500 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 20.6ms
3/4
Echo 1500B (DF) 20.8ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | fw1-lju.6connect.com 2607:fae0:a000::2 | 0.2ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | 30% | - | |
| 4 | * | - | 10% | - | |
| 5 | * | - | - | - | |
| 6 | * | - | 30% | - | |
| 7 | * | - | - | - | |
| 8 | e0-36.core2.rom1.he.net 2001:470:0:4d4::2 | 21.2ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | unidata.rom.namex.it 2001:7f8:10::5394 | 20.8ms | 0% | - | NA |
| 10 | 2a02:688:ffff:b710:bb2::222 | 21.8ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 11 | 2a02:688:ffff:b710:bb2::221 | 20.8ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 12 | 2a02:688:ffff:b710::22 | 21.1ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 13 | 2a02:688:ffff:e91e::a | 20.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 14 | * | - | 0% | - | |
| 15 | * | - | - | - | |
| 16 | * | - | - | - | |
| 17 | * | - | - | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
Rate-limited ICMPv6: hop 3, hop 4, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.019ms pmtu 9000
1: fw1-lju.6connect.com 0.518ms
1: fw1-lju.6connect.com 0.561ms
2: no reply
3: 2a03:a100:0:201:1::1 1.237ms
4: 2a03:a100:0:201:1::1 0.842ms pmtu 1500
4: e0-1.core1.lju1.he.net 2.003ms
5: no reply
6: port-channel1.core1.zag2.he.net 4.328ms
7: no reply
8: e0-36.core2.rom1.he.net 21.296ms
9: ??? 26.527ms
10: 2a02:688:ffff:b710:bb2::222 21.701ms
11: 2a02:688:ffff:b710:bb2::221 21.527ms
12: 2a02:688:ffff:b710::22 26.656ms asymm 11
13: 2a02:688:ffff:e91e::a 24.348ms asymm 12
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
Too many hops: pmtu 1500From SLO host (T-2) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
4/4
Echo small (56B) 41.4ms
4/4
Echo 1500B (DF) 41.7ms
no
Type 1 dest-unreach
-
TCP responds on
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 1.8ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 3 | 2a01-260-1-1--9c.core6.t-2.net 2a01:260:1:1::9c | 2.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--39.core6.t-2.net 2a01:260:1:1::39 | 2.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | hurricane-electric.nikhef.nlsix.net 2001:7f8:13::a500:6939:1 | 36.9ms | 0% | - | NA |
| 6 | be3.core4.fra1.he.net 2001:470:e:5a::2 | 39.5ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 7 | be10.core1.zrh2.he.net 2001:470:e:153::2 | 44.4ms | 20% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 8 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 35.8ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 9 | be1.core1.mil2.he.net 2001:470:e:dd::1 | 35.9ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 10 | * | - | - | - | |
| 11 | e0-36.core2.rom1.he.net 2001:470:0:4d4::2 | 44.1ms | 0% | AS6939 | HURRICANE - Hurricane Electric LLC, US |
| 12 | 2a02:688:ffff:b710:bb2::222 | 48.5ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 13 | 2a02:688:ffff:b710:bb2::221 | 48.3ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 14 | 2a02:688:ffff:b710::9e | 44.9ms | 0% | AS5394 | Unidata - UNIDATA S.p.A., IT |
| 15 | * | - | 0% | - | |
| 16 | * | - | 0% | - | |
| 17 | * | - | 0% | - | |
| 18 | * | - | - | - | |
| 19 | * | - | - | - | |
| 20 | * | - | - | - | |
| 21 | * | - | - | - | |
| 22 | * | - | - | - |
Rate-limited ICMPv6: hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.028ms pmtu 1500
1: no reply
2: 2a01:260:1::225 2.466ms
3: 2a01-260-1-1--9c.core6.t-2.net 2.495ms
4: hurricane-electric.nikhef.nlsix.net 34.544ms
5: be7.core2.fra2.he.net 38.483ms
6: no reply
7: be3.core4.fra1.he.net 39.005ms
8: be1.core1.mil2.he.net 33.983ms asymm 7
9: be1.core1.mil2.he.net 37.013ms asymm 7
10: e0-36.core2.rom1.he.net 42.083ms asymm 7
11: e0-36.core2.rom1.he.net 40.604ms asymm 7
12: 2a02:688:ffff:b710:bb2::222 39.545ms asymm 9
13: 2a02:688:ffff:b710:bb2::222 41.680ms asymm 9
14: 2a02:688:ffff:b710::22 41.621ms asymm 10
15: 2a02:688:ffff:b710::9e 39.392ms asymm 10
16: 2a02:688:ffff:e91e::a 41.193ms asymm 11
17: no reply
18: no reply
19: no reply
20: no reply
21: no reply
22: no reply
Too many hops: pmtu 1500
Resume: pmtu 1500