AS8445 - SALZBURG-AG-AS SALZBURG AG fur EnergiePI/PARFC 4890 ✓RPKI ⚠ 2/3ASPA -

← back to summary

All countriesHomeState of IPv6TopologyIXPsAboutipv6.si ↗ Sparky

AS overview

Test target: 2a03:c400:11:ffff::230 · adns003.conova.at · address space: mixed · prefixes announced: 3

prefix(es): 2001:67c:1ba0::/48, 2a03:c400::/32, 2a03:c400::/29

Targets & per-vantage-point probe results (3 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
2a03:c400:11:ffff::149
mx-in.cablelink.at
MX??-??-??-??-??-??-??-
2a03:c400:11:ffff::219
webmail.salzburg.at
drvopenopen-openopen-openopen-openopen-openopen-openopen-openopen-
2a03:c400:11:ffff::230
adns003.conova.at
NS??-??-??-??-??-??-??-

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

VIX / AAIX / SAIX / TIROL-IX / ERA-IX member - Open peering, peering member, since 2013-07-02. IPv6 LAN: 2001:7f8:30:0:2:1:0:8445. Locations: -.

RPKI & ASPA

2 of 3 prefix(es) covered by a valid ROA, 1 not-found.

PrefixRPKI stateReasonCovering VRP(s)
2001:67c:1ba0::/48- not-foundno covering VRP
2a03:c400::/32✓ validmatched VRP (correct origin, length within maxLength)AS8445 /32 maxLen 32 (ripe); AS8445 /29 maxLen 32 (ripe)
2a03:c400::/29✓ validmatched VRP (correct origin, length within maxLength)AS8445 /29 maxLen 32 (ripe)

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

We probed 70 arbitrary IPv6 address(es) inside AS8445's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a01:190:1764:a6::2 at hop 10 - that router answers ICMPv6 Echo. This is not in AS8445'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 2026-09-22T13:54:49Z

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 AS8445

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

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

4/4
Echo small (56B) 16.0ms
4/4
Echo 1500B (DF) 16.1ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a09:ab81::10.3ms0%*AS60733PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS
22001:7f8:1e::40.4ms0%AS13004SOX - Serbian Open Exchange DOO, RS
3e0-33.core2.beg1.he.net
2001:470:1:6e5::1
1.5ms0%AS6939HURRICANE - Hurricane Electric LLC, US
4e0-34.core2.bts1.he.net
2001:470:0:33f::2
8.4ms0%AS6939HURRICANE - Hurricane Electric LLC, US
5*-10%-
6vix-ip6-et-0-1-2-0-r60.esh.vie.at.nextlayer.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX
2001:7f8:30:0:1:1:0:1764
11.4ms0%-NA
7ip6-ae1-0-r60.tnz.sbg.nextlayer.net
2a01:190:1764:10::2
26.5ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
82a01:190:1703:30::216.3ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
92a03:c400::102:1:216.7ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
10*---
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---

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

tracepath -6

 1?: [LOCALHOST]                        0.010ms pmtu 1500
 1:  _gateway                                              0.455ms 
 1:  _gateway                                              0.488ms 
 2:  2001:7f8:1e::4                                        0.769ms 
 3:  e0-33.core2.beg1.he.net                               1.574ms 
 4:  e0-34.core2.bts1.he.net                               8.858ms 
 5:  100ge0-0-0-2.core1.vie1.he.net                       11.696ms 
 6:  vix-ip6-et-0-1-2-0-r60.inx.vie.at.nextlayer.net      11.105ms asymm  3 
 7:  ip6-ae1-0-r60.tnz.sbg.nextlayer.net                  26.388ms asymm  5 
 8:  2a01:190:1703:30::2                                  16.562ms asymm  3 
 9:  ???                                                  16.594ms asymm  4 
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
     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) 21.3ms
4/4
Echo 1500B (DF) 21.4ms
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
0.2ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2ae0-2453.cr10.ber01.lwlcom.net
2a06:d1c0::dead:beef:1c02
0.7ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3retn.bcix.de
2001:7f8:19:1::232a:1
10.5ms10%-NA
4RT.IRX.VIE.AT.retn.net
2a02:2d8::57f5:e0af
21.5ms0%AS9002RETN-AS - RETN Limited, GB
5GW-Salzburg.retn.net
2a02:2d8:0:a009:232a::1
21.6ms0%AS9002RETN-AS - RETN Limited, GB
62a03:c400::102:2:221.9ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
7*---
8*-0%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---

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 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.433ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.435ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.101ms 
 3:  retn.bcix.de                                         10.622ms asymm  5 
 4:  RT.IRX.VIE.AT.retn.net                               21.804ms asymm  5 
 5:  no reply
 6:  ???                                                  21.929ms asymm  8 
 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
     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) 11.4ms
4/4
Echo 1500B (DF) 11.3ms
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
0.1ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2eth1-0-12-h5594.edge5-dus1.bb.wiit.network
2001:4ba0:92f4:3::1
2.2ms0%AS24961MYLOC-AS - WIIT AG, DE
3lag10-h5f01.agr4-dus1.bb.wiit.network
2001:4ba0:ffe9:7c::1
17.1ms0%AS24961MYLOC-AS - WIIT AG, DE
4lag11.core3-dus1.bb.wiit.network
2001:4ba0:ffe9:115::3
0.1ms0%AS24961MYLOC-AS - WIIT AG, DE
5lag2.core1-dus-ix.bb.wiit.network
2001:4ba0:ffe9:4f::1
0.4ms0%AS24961MYLOC-AS - WIIT AG, DE
6ipv6.de-cix.fra.de.as8445.salzburg-ag.at
2001:7f8::20fd:0:1
11.8ms10%-NA
72a03:c400::102:2:211.6ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
8*---
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---

Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.010ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.255ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.213ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.213ms 
 3:  no reply
 4:  lag30.core3-dus1.bb.wiit.network                      0.420ms 
 5:  lag2.core1-dus-ix.bb.wiit.network                     0.505ms 
 6:  ipv6.de-cix.fra.de.as8445.salzburg-ag.at             11.667ms 
 7:  ???                                                  11.868ms 
 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
     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) 21.7ms
3/4
Echo 1500B (DF) 23.1ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::21.2ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2*-0%*-
3*-90%-
4ams-ix.retn.net
2001:7f8:1::a500:9002:1
635.9ms0%-NA
5RT.IRX.VIE.AT.retn.net
2a02:2d8::57f5:e0af
20.6ms0%AS9002RETN-AS - RETN Limited, GB
6GW-Salzburg.retn.net
2a02:2d8:0:a009:232a::1
21.6ms60%AS9002RETN-AS - RETN Limited, GB
72a03:c400::102:2:222.5ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
8*---
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---

Rate-limited ICMPv6: hop 3, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.023ms pmtu 1500
 1:  2a00:8642:42::2                                       1.660ms 
 1:  2a00:8642:42::2                                       1.758ms 
 2:  gw.friends.steffann.nl                                2.134ms 
 3:  no reply
 4:  ams-ix.retn.net                                       6.124ms asymm  7 
 5:  RT.IRX.VIE.AT.retn.net                               22.945ms asymm  9 
 6:  GW-Salzburg.retn.net                                 23.298ms asymm  7 
 7:  ???                                                  27.268ms asymm  8 
 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
     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) 100.8ms
3/4
Echo 1500B (DF) 21.7ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*---
2*-0%*-
3*-20%-
4*---
5be47.core1.mil2.he.net
2001:470:e:69::2
13.8ms0%AS6939HURRICANE - Hurricane Electric LLC, US
6be1.core1.zrh2.he.net
2001:470:e:dd::2
12.4ms0%AS6939HURRICANE - Hurricane Electric LLC, US
7*---
8be1.core3.zrh3.he.net
2001:470:0:7e0::2
16.7ms0%AS6939HURRICANE - Hurricane Electric LLC, US
9*---
10ip6-ae2-0-r60.tnz.sbg.nextlayer.net
2a01:190:1764:a6::2
18.2ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
112a01:190:1703:30::221.7ms90%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
122a03:c400::102:1:222.7ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
13*---
14*-0%-
15*---
16*---
17*---
18*---

Rate-limited ICMPv6: hop 3, hop 11 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.027ms pmtu 1500
 1:  karsolink-01.net.karsolink.com                        0.727ms 
 2:  2a12:d8c0:109f:121::a1                                0.600ms 
 3:  2a12:d8c0:101f:6::1                                  10.140ms 
 4:  no reply
 5:  be47.core1.mil2.he.net                               11.902ms 
 6:  be1.core1.zrh2.he.net                                15.661ms 
 7:  no reply
 8:  be1.core3.zrh3.he.net                                15.204ms 
 9:  no reply
10:  ip6-ae1-0-r60.tnz.sbg.nextlayer.net                  17.618ms asymm  7 
11:  2a01:190:1703:30::2                                  21.992ms asymm  7 
12:  ???                                                  22.282ms asymm  8 
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  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) 16.3ms
4/4
Echo 1500B (DF) 16.4ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1fw1-lju.6connect.com
2607:fae0:a000::2
0.2ms0%*AS80386CONNECT - 6connect, Inc., US
2*---
32a00:ee1:800:9::11.6ms-AS5603SIOL-NET - Telekom Slovenije, d.d., SI
42a00:ee0:1:15::21.1ms0%AS5603SIOL-NET - Telekom Slovenije, d.d., SI
5ipv6.de-cix.fra.de.as8445.salzburg-ag.at
2001:7f8::20fd:0:1
23.5ms0%-NA
62a03:c400::102:2:222.8ms0%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
7*---
8*-0%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---

tracepath -6

 1?: [LOCALHOST]                        0.020ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.627ms 
 1:  fw1-lju.6connect.com                                  0.626ms 
 2:  no reply
 3:  2a00:ee1:800:9::1                                     2.345ms 
 4:  2a00:ee0:1:15::2                                      1.997ms asymm  3 
 5:  2a00:ee0:1:10::2                                      1.794ms pmtu 1500
 5:  ipv6.de-cix.fra.de.as8445.salzburg-ag.at             21.942ms asymm  9 
 6:  ???                                                  22.116ms asymm 10 
 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
     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) 14.6ms
4/4
Echo 1500B (DF) 14.8ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*---
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
2.0ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42a01-260-1-1--38.core6.t-2.net
2a01:260:1:1::38
2.7ms0%*AS34779T-2-AS - T-2, d.o.o., SI
5100ge0-0-0-31.core1.vie1.he.net
2001:470:0:4a8::1
11.2ms-AS6939HURRICANE - Hurricane Electric LLC, US
6vix-ip6-et-0-1-2-0-r60.inx.vie.at.nextlayer.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX
2001:7f8:30:0:2:1:0:1764
10.2ms20%-NA
7ip6-ae1-0-r60.tnz.sbg.nextlayer.net
2a01:190:1764:10::2
13.7ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
8ip6-ae2-0-r60.tnz.sbg.nextlayer.net
2a01:190:1764:a6::2
14.2ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
92a03:c400::102:1:215.4ms70%AS8445SALZBURG-AG-AS - SALZBURG AG fur Energie, Verkehr und Telekommunikation, AT
10*-0%-
11*---
12*-0%-
13*---
14*---
15*---
16*---
17*---
18*---

Rate-limited ICMPv6: hop 6, hop 9 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.026ms pmtu 1500
 1:  no reply
 2:  2a01:260:1::225                                       2.803ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        1.947ms 
 4:  2a01-260-1-1--38.core6.t-2.net                        2.442ms asymm  3 
 5:  100ge0-0-0-31.core1.vie1.he.net                      11.067ms 
 6:  vix-ip6-et-0-1-2-0-r60.esh.vie.at.nextlayer.net      10.174ms asymm  5 
 7:  vix-ip6-et-0-1-2-0-r60.esh.vie.at.nextlayer.net      10.274ms asymm  5 
 8:  ip6-ae1-0-r60.tnz.sbg.nextlayer.net                  14.035ms asymm  6 
 9:  ???                                                  14.509ms asymm  6 
10:  ???                                                  15.190ms asymm  6 
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500