AS207203 - TIMEWARP-AS TIMEWARP IT ConsultingPI/PARFC 4890 ✓RPKI ✓ 2/2ASPA -

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AS overview

Test target: 2a04:7700::1 · static prefix probe · address space: mixed · prefixes announced: 2

prefix(es): 2a0a:440::/29, 2a04:7700::/29

Targets & per-vantage-point probe results (1 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 / hostnameSourceSRB host (SOX, Belgrade)DE host (Berlin)DE host (Düsseldorf)NL host (go6lab)ITA host (Karsolink)SLO host (6connect)SLO host (T-2)
ping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reached
2a04:7700::1prb??-??-??-??-??-??-??-

VIX / AAIX / SAIX / TIROL-IX / ERA-IX peering

VIX / AAIX / SAIX / TIROL-IX / ERA-IX member - Open peering, peering member, since 2018-12-19. IPv6 LAN: 2001:7f8:30:0:2:1000:20:7203. Locations: -.

RPKI & ASPA

2 of 2 prefix(es) covered by a valid ROA.

PrefixRPKI stateReasonCovering VRP(s)
2a0a:440::/29✓ validmatched VRP (correct origin, length within maxLength)AS207203 /29 maxLen 29 (ripe)
2a04:7700::/29✓ validmatched VRP (correct origin, length within maxLength)AS207203 /29 maxLen 29 (ripe)

Random-IP probe (yarrp) into the AS' prefixes

At least one router inside AS207203's announced prefix replied during the random-target probe. Hop(s): 2a04:7700:0:3::11, 2a04:7700:0:3::12, 2a04:7700:0:4::11, 2a04:7700:0:4::12, 2a04:7700:0:6::10. 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 2026-09-24T13:32:13Z

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 ↗

multi-vantage path diagram for AS207203

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 12.8ms
4/4
Echo 1500B (DF) 12.9ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a09:ab81::10.5ms0%*AS60733PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS
22001:7f8:1e::40.6ms0%AS13004SOX - Serbian Open Exchange DOO, RS
32001:7f8:30:0:2:1000:20:7203 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX12.7ms0%-NA
4*-0%-
5*---
6*---
7*---
8*---
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.011ms pmtu 1500
 1:  _gateway                                              0.598ms 
 1:  _gateway                                              0.378ms 
 2:  2001:7f8:1e::4                                        0.681ms 
 3:  2001:7f8:30:0:2:1000:20:7203                         11.161ms 
 4:  no reply
 5:  no reply
 6:  no reply
 7:  no reply
 8:  no reply
 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
     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) 26.9ms
4/4
Echo 1500B (DF) 26.8ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1xe-0-0-13-178.gw01.ber01.as59645.net
2a06:d1c1:100:b::1
0.3ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2ae0-2453.cr10.ber01.lwlcom.net
2a06:d1c0::dead:beef:1c02
0.8ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3ae0-10.cr10.ber03.lwlcom.net
2a00:c380:b200:230::220
0.8ms0%AS50629LWLCOM - LWLcom GmbH, DE
4ae0-15.cr11.dtm01.lwlcom.net
2a00:c380:b200:230::5
8.7ms0%AS50629LWLCOM - LWLcom GmbH, DE
5ae0-10.cr10.dtm02.lwlcom.net
2a00:c380:b200:230::255
8.7ms0%AS50629LWLCOM - LWLcom GmbH, DE
6ae0-20.cr10.dus04.lwlcom.net
2a00:c380:b200:230::139
16.9ms0%AS50629LWLCOM - LWLcom GmbH, DE
7ae0-20.cr10.dus01.lwlcom.net
2a00:c380:b200:230::108
9.0ms0%AS50629LWLCOM - LWLcom GmbH, DE
8ae6-60.cr10.ams01.lwlcom.net
2a00:c380:b200:230::213
11.4ms0%AS50629LWLCOM - LWLcom GmbH, DE
9as5405.frys-ix.net
2001:7f8:10f::151d:9
11.6ms0%-NA
10r7-ams1-nl.as5405.net
2a11:4140::55
26.5ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
11r7-fra1-de.as5405.net
2a11:4140::4c
26.6ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
12r5-fra1-de.as5405.net
2a11:4140::42
26.5ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
13r2-vie1-at.as5405.net
2a11:4140::1e
26.4ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
14r2-vie2-at.as5405.net
2a11:4140::20
26.4ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
152a11:4140:e002::327.3ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
16*-0%-
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.025ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.503ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.516ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.347ms 
 3:  ae0-10.cr10.ber03.lwlcom.net                          1.202ms 
 4:  ae0-15.cr11.dtm01.lwlcom.net                          8.848ms asymm  5 
 5:  ae0-20.cr10.dtm01.lwlcom.net                          9.038ms asymm  4 
 6:  ae0-20.cr10.dus04.lwlcom.net                          8.912ms asymm  5 
 7:  ae0-20.cr10.dus01.lwlcom.net                          9.088ms asymm  4 
 8:  ae6-60.cr10.ams01.lwlcom.net                         11.773ms asymm  5 
 9:  as5405.frys-ix.net                                   11.532ms 
10:  r7-ams1-nl.as5405.net                                26.767ms asymm 13 
11:  r7-fra1-de.as5405.net                                26.874ms asymm 12 
12:  r5-fra1-de.as5405.net                                26.922ms asymm 11 
13:  r2-vie1-at.as5405.net                                26.704ms asymm 10 
14:  r2-vie2-at.as5405.net                                27.011ms asymm  9 
15:  2a11:4140:e002::3                                    27.135ms asymm  9 
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  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) 14.3ms
4/4
Echo 1500B (DF) 14.2ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1xe-0-0-12-142.gw01.dus01.as59645.net
2a06:d1c1:100:d::1
0.3ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
22001:7f8:9e::151d:0:10.4ms0%-NA
3r4-fra2-de.as5405.net
2a11:4140::b
13.8ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
4r7-fra1-de.as5405.net
2a11:4140::4c
13.9ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
5r5-fra1-de.as5405.net
2a11:4140::42
14.1ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
6r2-vie1-at.as5405.net
2a11:4140::1e
13.9ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
7r2-vie2-at.as5405.net
2a11:4140::20
14.0ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
82a11:4140:e002::314.2ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.016ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.386ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.272ms 
 2:  2001:7f8:9e::151d:0:1                                 0.534ms asymm  3 
 3:  r4-fra2-de.as5405.net                                14.043ms asymm 12 
 4:  r7-fra1-de.as5405.net                                14.074ms asymm 11 
 5:  r5-fra1-de.as5405.net                                14.314ms asymm 10 
 6:  r2-vie1-at.as5405.net                                14.112ms asymm  9 
 7:  r2-vie2-at.as5405.net                                14.147ms asymm  8 
 8:  2a11:4140:e002::3                                    14.245ms 
 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
     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) 23.4ms
4/4
Echo 1500B (DF) 23.7ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::24.4ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2gw.friends.steffann.nl
2a00:8642:1000:f000::1
2.3ms0%*AS203993GNA-DC1-AS - S.J.M. Steffann, NL
3speed-ix.inter.link
2001:7f8:b7::a500:5405:1
3.9ms0%-NA
4r5-ams1-nl.as5405.net
2a11:4140::41
24.2ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
5r7-ams1-nl.as5405.net
2a11:4140::55
25.5ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
6r7-fra1-de.as5405.net
2a11:4140::4c
26.5ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
7r5-fra1-de.as5405.net
2a11:4140::42
23.4ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
8r2-vie1-at.as5405.net
2a11:4140::1e
25.6ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
9r2-vie2-at.as5405.net
2a11:4140::20
24.2ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
102a11:4140:e002::326.0ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.029ms pmtu 1500
 1:  2a00:8642:42::2                                       2.449ms 
 1:  2a00:8642:42::2                                       2.787ms 
 2:  gw.friends.steffann.nl                                3.661ms 
 3:  speed-ix.inter.link                                   5.772ms asymm  4 
 4:  r5-ams1-nl.as5405.net                                24.045ms asymm 15 
 5:  r7-ams1-nl.as5405.net                                23.758ms asymm 14 
 6:  r7-fra1-de.as5405.net                                25.078ms asymm 13 
 7:  r5-fra1-de.as5405.net                                25.764ms asymm 12 
 8:  r2-vie1-at.as5405.net                                24.832ms asymm 11 
 9:  r2-vie2-at.as5405.net                                23.841ms asymm 10 
10:  2a11:4140:e002::3                                    24.692ms 
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
     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) 28.9ms
4/4
Echo 1500B (DF) 28.9ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1karsolink-01.net.karsolink.com
2a12:d8c0:105a:9001::1
0.2ms0%*AS204471KARSOLINK - 2S Computers SRL, IT
2*-0%*-
32a12:d8c0:101f:103::18.4ms0%AS204471KARSOLINK - 2S Computers SRL, IT
4interlink-AS5405.mix-it.net
2001:7f8:b:100:1d1:a5d0:5405:221
8.4ms0%-NA
5r2-zrh1-ch.as5405.net
2a11:4140::5d
28.7ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
6r3-fra1-de.as5405.net
2a11:4140::6
28.7ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
7r7-fra1-de.as5405.net
2a11:4140::4c
28.6ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
8r5-fra1-de.as5405.net
2a11:4140::42
28.6ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
9r2-vie1-at.as5405.net
2a11:4140::1e
28.7ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
10r2-vie2-at.as5405.net
2a11:4140::20
28.7ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
112a11:4140:e002::329.1ms0%AS5405INTERDOTLINK - Inter.link GmbH, DE
12*-0%-
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.028ms pmtu 1500
 1:  no reply
 2:  no reply
 3:  2a12:d8c0:101f:103::1                                10.189ms 
 4:  interlink-AS5405.mix-it.net                          10.041ms asymm  5 
 5:  r2-zrh1-ch.as5405.net                                29.895ms asymm 16 
 6:  r3-fra1-de.as5405.net                                29.077ms asymm 15 
 7:  r7-fra1-de.as5405.net                                29.255ms asymm 14 
 8:  r5-fra1-de.as5405.net                                29.460ms asymm 13 
 9:  r2-vie1-at.as5405.net                                29.600ms asymm 12 
10:  r2-vie2-at.as5405.net                                29.237ms asymm 11 
11:  2a11:4140:e002::3                                    29.953ms 
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
     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) 7.2ms
4/4
Echo 1500B (DF) 7.2ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1fw1-lju.6connect.com
2607:fae0:a000::2
0.4ms0%*AS80386CONNECT - 6connect, Inc., US
2ccr-to-fw-ccr1-gw-lju.6connect.com
2607:fae0:a000:2::2
0.6ms0%*AS80386CONNECT - 6connect, Inc., US
32a03:a100:0:201:1::10.7ms0%AS56635XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI
4*-80%-
5*-90%-
62001:7f8:30:0:2:1000:20:7203 @VIX / AAIX / SAIX / TIROL-IX / ERA-IX7.6ms0%-NA
7*-0%-
8*---
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

Rate-limited ICMPv6: hop 4, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.021ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.597ms 
 1:  fw1-lju.6connect.com                                  0.510ms 
 2:  no reply
 3:  2a03:a100:0:201:1::1                                  0.987ms 
 4:  2a03:a100:0:201:1::1                                  0.973ms pmtu 1500
 4:  e0-1.core1.lju1.he.net                                2.375ms 
 5:  100ge0-0-0-5.core1.vie1.he.net                        9.598ms 
 6:  2001:7f8:30:0:2:1000:20:7203                          8.086ms asymm  5 
 7:  no reply
 8:  no reply
 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
     Too many hops: pmtu 1500

From SLO host (T-2)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 7.9ms
4/4
Echo 1500B (DF) 8.2ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a01:261:313:b814::10.4ms-AS34779T-2-AS - T-2, d.o.o., SI
22a01:260:1::2252.0ms0%*AS34779T-2-AS - T-2, d.o.o., SI
32a01-260-1-1--9a.core6.t-2.net
2a01:260:1:1::9a
1.9ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42a01-260-1-1--38.core6.t-2.net
2a01:260:1:1::38
2.2ms0%*AS34779T-2-AS - T-2, d.o.o., SI
52a01-260-1-1--c.core6.t-2.net
2a01:260:1:1::c
4.0ms0%*AS34779T-2-AS - T-2, d.o.o., SI
6*-0%-
7*-0%-
8*---
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---

tracepath -6

 1?: [LOCALHOST]                        0.029ms pmtu 1500
 1:  2a01:261:313:b814::1                                  1.006ms 
 1:  no reply
 2:  2a01:260:1::225                                       9.534ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        2.925ms 
 4:  2a01-260-1-1--38.core6.t-2.net                        3.162ms asymm  3 
 5:  2a01-260-1-1--c.core6.t-2.net                         4.899ms asymm  4 
 6:  2001:7f8:30:0:2:1000:20:7203                          8.412ms asymm  5 
 7:  no reply
 8:  no reply
 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
     Too many hops: pmtu 1500
     Resume: pmtu 1500