AS43771 - MUKI-AS MuKi Versicherungsverein auf Gegenseitigkeit VVaGPI/PARFC 4890 ✓RPKI ✓ 1/1ASPA -

← back to summary

All countriesHomeState of IPv6TopologyIXPsAboutipv6.si ↗ Sparky

AS overview

Test target: 2a0a:cdc0::10 · border.muki.com · address space: mixed · prefixes announced: 1

prefix(es): 2a0a:cdc0::/32

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
2a0a:cdc0::10
border.muki.com
drvrefusedrefused-refusedrefused-refusedrefused-??-refusedrefused-refusedrefused-refusedrefused-

RPKI & ASPA

1 of 1 prefix(es) covered by a valid ROA.

PrefixRPKI stateReasonCovering VRP(s)
2a0a:cdc0::/32✓ validmatched VRP (correct origin, length within maxLength)AS43771 /32 maxLen 32 (ripe)

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

We probed 35 arbitrary IPv6 address(es) inside AS43771's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:4a0:1338:fd::2 at hop 13 - that router answers ICMPv6 Echo. This is not in AS43771'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 2026-09-22T13:56:31Z

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 AS43771

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

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

4/4
Echo small (56B) 32.6ms
4/4
Echo 1500B (DF) 33.1ms
yes
Type 1 dest-unreach
443,80
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
2sox-pn.sox.rs
2001:7f8:1e:8::3a
0.2ms0%AS13004SOX - Serbian Open Exchange DOO, RS
32001:7f8:1e:8::3d0.3ms0%AS13004SOX - Serbian Open Exchange DOO, RS
42a02:2d8:0:a00e:232a18.5ms0%-
5RT.DPX.BUD.HU.retn.net
2a02:2d8::57f5:e0ad
15.9ms10%AS9002RETN-AS - RETN Limited, GB
62001:7f8:35::3:3891:130.3ms0%-NA
7ae6-2113.vie10.core-backbone.com
2a01:4a0:0:2113::10
31.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae1-2051.vie20.core-backbone.com
2a01:4a0:0:2051::16
29.8ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae5-2058.slz10.core-backbone.com
2a01:4a0:0:2058::8
33.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
102a01:4a0:1338:fd::232.9ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

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

tracepath -6

 1?: [LOCALHOST]                        0.025ms pmtu 1500
 1:  _gateway                                              0.689ms 
 1:  _gateway                                              0.382ms 
 2:  sox-pn.sox.rs                                         0.365ms 
 3:  2001:7f8:1e:8::3d                                     1.702ms asymm  2 
 4:  ae8-930.RT.IRX.VIE.AT.retn.net                       13.149ms asymm  3 
 5:  RT.DPX.BUD.HU.retn.net                               14.521ms asymm  4 
 6:  2001:7f8:35::3:3891:1                                28.716ms asymm 10 
 7:  ae6-2113.vie10.core-backbone.com                     31.543ms asymm 10 
 8:  ae1-2051.vie20.core-backbone.com                     31.532ms asymm 11 
 9:  ae5-2058.slz10.core-backbone.com                     33.230ms asymm 10 
10:  2a01:4a0:1338:fd::2                                  31.712ms reached
     Resume: pmtu 1500 hops 10 back 11 

From DE host (Berlin)   openRFC 4890 ✓

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

4/4
Echo small (56B) 17.8ms
4/4
Echo 1500B (DF) 18.0ms
yes
Type 1 dest-unreach
443,80
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
0.9ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3ae3-90.cr10.ham01.lwlcom.net
2a00:c380:b200:230::192
5.0ms0%AS50629LWLCOM - LWLcom GmbH, DE
4ae0-50.cr11.ham01.lwlcom.net
2a00:c380:b200:230::45
4.9ms0%AS50629LWLCOM - LWLcom GmbH, DE
52a00:c380:f000::4b5.1ms0%AS50629LWLCOM - LWLcom GmbH, DE
6ae4-2087.dus10.core-backbone.com
2a01:4a0:0:2087::33
11.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
7ae21-2071.fra10.core-backbone.com
2a01:4a0:0:2071::4
10.6ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae2-2021.fra20.core-backbone.com
2a01:4a0:0:2021::4
10.6ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
12.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
10ae2-2032.muc20.core-backbone.com
2a01:4a0:0:2032::7
14.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
11ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
16.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
122a01:4a0:1338:fd::217.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

tracepath -6

 1?: [LOCALHOST]                        0.021ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.508ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.529ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        0.868ms 
 3:  ae3-90.cr10.ham01.lwlcom.net                          8.705ms 
 4:  ae0-50.cr11.ham01.lwlcom.net                          5.124ms 
 5:  2a00:c380:f000::4b                                    5.744ms asymm  4 
 6:  ae4-2087.dus10.core-backbone.com                     11.788ms asymm  5 
 7:  ae21-2071.fra10.core-backbone.com                    10.966ms asymm  5 
 8:  ae2-2021.fra20.core-backbone.com                     10.997ms asymm  4 
 9:  ae6-2003.nbg20.core-backbone.com                     12.448ms asymm  6 
10:  ae2-2032.muc20.core-backbone.com                     15.273ms asymm  7 
11:  ae4-2057.slz10.core-backbone.com                     16.617ms asymm  8 
12:  2a01:4a0:1338:fd::2                                  18.577ms reached
     Resume: pmtu 1500 hops 12 back 9 

From DE host (Düsseldorf)   openRFC 4890 ✓

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

4/4
Echo small (56B) 16.3ms
4/4
Echo 1500B (DF) 16.7ms
yes
Type 1 dest-unreach
443,80
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
0.2ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2eth1-0-12-h5594.edge5-dus1.bb.wiit.network
2001:4ba0:92f4:3::1
1.9ms0%AS24961MYLOC-AS - WIIT AG, DE
3lag10-h5f01.agr4-dus1.bb.wiit.network
2001:4ba0:ffe9:7c::1
0.9ms0%AS24961MYLOC-AS - WIIT AG, DE
4lag11.core3-dus1.bb.wiit.network
2001:4ba0:ffe9:115::3
0.2ms0%AS24961MYLOC-AS - WIIT AG, DE
5lag2.core1-dus-ix.bb.wiit.network
2001:4ba0:ffe9:4f::1
0.4ms0%AS24961MYLOC-AS - WIIT AG, DE
6core-backbone-dus-gw.bb.wiit.network
2001:4ba0:ffe9:44::2
10.2ms0%AS24961MYLOC-AS - WIIT AG, DE
7ae21-2071.fra10.core-backbone.com
2a01:4a0:0:2071::4
9.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae2-2021.fra20.core-backbone.com
2a01:4a0:0:2021::4
9.6ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
10.8ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
10ae2-2032.muc20.core-backbone.com
2a01:4a0:0:2032::7
13.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
11ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
15.4ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
122a01:4a0:1338:fd::216.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

tracepath -6

 1?: [LOCALHOST]                        0.028ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.771ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.367ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.588ms 
 3:  no reply
 4:  lag30.core3-dus1.bb.wiit.network                      0.625ms 
 5:  lag8.core1-dus-ix.bb.wiit.network                     0.677ms 
 6:  core-backbone-dus-gw.bb.wiit.network                 10.572ms 
 7:  ae21-2071.fra10.core-backbone.com                     9.846ms asymm  6 
 8:  ae2-2021.fra20.core-backbone.com                      9.758ms asymm  5 
 9:  ae6-2003.nbg20.core-backbone.com                     11.179ms asymm  7 
10:  ae2-2032.muc20.core-backbone.com                     13.582ms asymm  8 
11:  ae4-2057.slz10.core-backbone.com                     15.497ms asymm  9 
12:  2a01:4a0:1338:fd::2                                  17.275ms reached
     Resume: pmtu 1500 hops 12 back 10 

From NL host (go6lab)   openRFC 4890 ✓

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

4/4
Echo small (56B) 20.1ms
3/4
Echo 1500B (DF) 23.6ms
yes
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::20.0ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2gw.friends.steffann.nl
2a00:8642:1000:f000::1
2.4ms0%*AS203993GNA-DC1-AS - S.J.M. Steffann, NL
32a00:1ca8:1::1942.5ms0%AS50673Serverius-as - Serverius Holding B.V., NL
42a03:3f40::10:336.1ms0%AS50673Serverius-as - Serverius Holding B.V., NL
5ae22-404.ams10.core-backbone.com
2a01:4a0:1338:155::1
7.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
6ae16-2074.fra10.core-backbone.com
2a01:4a0:0:2074::3
10.9ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
7ae2-2021.fra20.core-backbone.com
2a01:4a0:0:2021::4
13.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
15.6ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae2-2032.muc20.core-backbone.com
2a01:4a0:0:2032::7
16.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
10ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
18.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
112a01:4a0:1338:fd::220.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

tracepath -6

 1?: [LOCALHOST]                        0.031ms pmtu 1500
 1:  2a00:8642:42::2                                       4.623ms 
 1:  2a00:8642:42::2                                       2.540ms 
 2:  no reply
 3:  2a00:1ca8:1::194                                      6.709ms 
 4:  2a03:3f40::10:33                                      9.709ms 
 5:  ae22-404.ams10.core-backbone.com                      7.386ms 
 6:  ae16-2074.fra10.core-backbone.com                    21.717ms 
 7:  ae2-2021.fra20.core-backbone.com                     14.256ms 
 8:  ae6-2003.nbg20.core-backbone.com                     15.044ms 
 9:  ae2-2032.muc20.core-backbone.com                     17.724ms 
10:  ae4-2057.slz10.core-backbone.com                     20.535ms 
11:  2a01:4a0:1338:fd::2                                  22.882ms reached
     Resume: pmtu 1500 hops 11 back 11 

From ITA host (Karsolink)   openRFC 4890 ✓

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

4/4
Echo small (56B) 33.5ms
3/4
Echo 1500B (DF) 34.4ms
yes
Type 1 dest-unreach
443,80
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*---
2*-0%*-
32a12:d8c0:109f:106::a23.2ms10%AS204471KARSOLINK - 2S Computers SRL, IT
42a03:b020:1:51::a10.1ms0%AS41327FIBERTELECOM-AS - Fiber Telecom S.p.A., IT
5RT.DPX.BUD.HU.retn.net
2a02:2d8::57f5:e0ad
20.2ms0%AS9002RETN-AS - RETN Limited, GB
6ae3-1.fra20.core-backbone.com
2001:7f8::8463:0:1
19.0ms0%-NA
7ae6-2113.vie10.core-backbone.com
2a01:4a0:0:2113::10
36.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae1-2051.vie20.core-backbone.com
2a01:4a0:0:2051::16
36.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
32.2ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
102a01:4a0:1338:fd::237.6ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

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:  no reply
 2:  no reply
 3:  2a12:d8c0:109f:106::a2                                4.080ms 
 4:  2a03:b020:1:51::a                                    10.497ms 
 5:  2a03:b020::224                                       19.263ms 
 6:  2001:7f8:35::3:3891:1                                43.093ms asymm  7 
 7:  ae6-2113.vie10.core-backbone.com                     30.778ms asymm  9 
 8:  ae1-2051.vie20.core-backbone.com                     36.871ms asymm 10 
 9:  ae5-2058.slz10.core-backbone.com                     30.898ms 
10:  2a01:4a0:1338:fd::2                                  34.589ms reached
     Resume: pmtu 1500 hops 10 back 10 

From SLO host (6connect)   openRFC 4890 ✓

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

4/4
Echo small (56B) 16.9ms
4/4
Echo 1500B (DF) 17.3ms
yes
Type 1 dest-unreach
443,80
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
2*---
3*-80%-
42a00:ee0:1:15::20.9ms0%AS5603SIOL-NET - Telekom Slovenije, d.d., SI
5ae3-1.fra20.core-backbone.com
2001:7f8::8463:0:1
14.3ms0%-NA
6ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
16.3ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
7ae2-2032.muc20.core-backbone.com
2a01:4a0:0:2032::7
14.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
15.8ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
92a01:4a0:1338:fd::216.9ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

Rate-limited ICMPv6: hop 3 (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                                  0.841ms 
 1:  fw1-lju.6connect.com                                  0.424ms 
 2:  no reply
 3:  no reply
 4:  2a00:ee0:1:15::2                                      1.630ms asymm  3 
 5:  2a00:ee0:1:10::2                                      1.511ms pmtu 1500
 5:  ae3-1.fra20.core-backbone.com                        14.302ms asymm  9 
 6:  ae6-2003.nbg20.core-backbone.com                     16.334ms asymm 10 
 7:  ae2-2032.muc20.core-backbone.com                     14.168ms asymm  8 
 8:  ae4-2057.slz10.core-backbone.com                     16.069ms asymm  9 
 9:  2a01:4a0:1338:fd::2                                  17.819ms reached
     Resume: pmtu 1500 hops 9 back 10 

From SLO host (T-2)   openRFC 4890 ✓

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

4/4
Echo small (56B) 32.1ms
4/4
Echo 1500B (DF) 32.3ms
yes
Type 1 dest-unreach
443,80
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a01:261:313:b814::10.3ms-AS34779T-2-AS - T-2, d.o.o., SI
22a01:260:1::2257.2ms0%*AS34779T-2-AS - T-2, d.o.o., SI
32a01-260-1-1--9c.core6.t-2.net
2a01:260:1:1::9c
1.9ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42a01-260-1-1--39.core6.t-2.net
2a01:260:1:1::39
1.5ms0%*AS34779T-2-AS - T-2, d.o.o., SI
5core_backbone.nlsix.net
2001:7f8:13::a523:3891:1
31.2ms0%-NA
6ae16-2074.fra10.core-backbone.com
2a01:4a0:0:2074::3
31.8ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
7ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
31.7ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
8ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
31.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
26.9ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
10ae4-2057.slz10.core-backbone.com
2a01:4a0:0:2057::8
26.1ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
112a01:4a0:1338:fd::228.9ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE

tracepath -6

 1?: [LOCALHOST]                        0.026ms pmtu 1500
 1:  2a01:261:313:b814::1                                  0.619ms 
 1:  no reply
 2:  2a01:260:1::225                                       3.854ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        2.393ms 
 4:  2a01-260-1-1--39.core6.t-2.net                        3.495ms asymm  3 
 5:  ae16-2074.fra10.core-backbone.com                    32.804ms asymm  9 
 6:  ae2-2021.fra20.core-backbone.com                     30.724ms asymm  8 
 7:  ae2-2021.fra20.core-backbone.com                     25.680ms asymm  8 
 8:  ae2-2032.muc20.core-backbone.com                     27.624ms asymm  6 
 9:  ae4-2057.slz10.core-backbone.com                     34.335ms asymm  7 
10:  2a01:4a0:1338:fd::2                                  30.541ms reached
     Resume: pmtu 1500 hops 10 back 8