AS3330 - PROFINET-AT eww agPI/PARFC 4890 ✓RPKI ✓ 3/3ASPA -

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AS overview

Test target: 2a02:5e0:0:4::4 · dns4.itandtel.at · address space: mixed · prefixes announced: 3

prefix(es): 2a02:5e0::/32, 2001:67c:29cc::/48, 2001:67c:2aa8::/48

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
2a02:5e0:0:4::4
dns4.itandtel.at
NS??-??-??-??-??-??-??-

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

VIX / AAIX / SAIX / TIROL-IX / ERA-IX member - Open peering, peering member, since 2021-05-21. IPv6 LAN: 2001:7f8:30:0:2:1:0:3330. Locations: -.

RPKI & ASPA

3 of 3 prefix(es) covered by a valid ROA.

PrefixRPKI stateReasonCovering VRP(s)
2a02:5e0::/32✓ validmatched VRP (correct origin, length within maxLength)AS3330 /32 maxLen 32 (ripe)
2001:67c:29cc::/48✓ validmatched VRP (correct origin, length within maxLength)AS3330 /48 maxLen 48 (ripe)
2001:67c:2aa8::/48✓ validmatched VRP (correct origin, length within maxLength)AS3330 /48 maxLen 48 (ripe)

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

At least one router inside AS3330's announced prefix replied during the random-target probe. Hop(s): 2a02:5e0:0:1::101a, 2a02:5e0:0:1::2016. 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 2026-09-22T13:53:43Z

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 AS3330

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

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

4/4
Echo small (56B) 16.8ms
4/4
Echo 1500B (DF) 16.7ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a09:ab81::10.2ms0%*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::3d0.6ms0%AS13004SOX - Serbian Open Exchange DOO, RS
42a02:2d8:0:a00e:232a11.0ms0%-
5vix2.at-vie-lh-r02.v6.as3330.net @VIX / AAIX / SAIX / TIROL-IX / ERA-IX
2001:7f8:30:0:2:1:0:3330
13.1ms90%-NA
6at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
11.1ms0%AS3330PROFINET-AT - eww ag, AT
7*-0%-
8*-0%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---

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

tracepath -6

 1?: [LOCALHOST]                        0.008ms pmtu 1500
 1:  _gateway                                              0.358ms 
 1:  _gateway                                              0.487ms 
 2:  sox-pn.sox.rs                                         0.272ms 
 3:  2001:7f8:1e:8::3d                                     0.818ms asymm  2 
 4:  ae8-930.RT.IRX.VIE.AT.retn.net                       11.320ms asymm  3 
 5:  no reply
 6:  at-vie-lh-r01.v6.as3330.net                          11.307ms asymm  4 
 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
     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) 25.0ms
4/4
Echo 1500B (DF) 25.0ms
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
0.6ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3ae3-90.cr10.ham01.lwlcom.net
2a00:c380:b200:230::192
4.8ms0%AS50629LWLCOM - LWLcom GmbH, DE
4ae0-50.cr11.ham01.lwlcom.net
2a00:c380:b200:230::45
4.8ms0%AS50629LWLCOM - LWLcom GmbH, DE
52a00:c380:f000::4b5.2ms0%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
10.5ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
9ae6-2003.nbg20.core-backbone.com
2a01:4a0:0:2003::2
12.0ms0%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
11ae1-2028.vie10.core-backbone.com
2a01:4a0:0:2028::10
20.0ms0%AS201011CORE-BACKBONE - Core-Backbone GmbH, DE
12*-90%-
13at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
20.8ms0%AS3330PROFINET-AT - eww ag, AT
14*-0%-
15*-0%-
16*---
17*---
18*---
19*---

Rate-limited ICMPv6: hop 12 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.025ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.899ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.605ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.342ms 
 3:  ae3-90.cr10.ham01.lwlcom.net                          5.668ms 
 4:  ae0-50.cr11.ham01.lwlcom.net                          5.085ms 
 5:  2a00:c380:f000::4b                                    5.708ms asymm  4 
 6:  ae4-2087.dus10.core-backbone.com                     11.735ms asymm  5 
 7:  ae21-2071.fra10.core-backbone.com                    11.011ms asymm  5 
 8:  ae2-2021.fra20.core-backbone.com                     10.996ms asymm  4 
 9:  ae6-2003.nbg20.core-backbone.com                     12.318ms asymm  6 
10:  ae2-2032.muc20.core-backbone.com                     15.096ms asymm  7 
11:  ae1-2028.vie10.core-backbone.com                     20.717ms asymm  8 
12:  2a01:4a0:1338:1f1::2                                 21.503ms asymm  5 
13:  at-vie-lh-r01.v6.as3330.net                          21.402ms asymm  6 
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  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) 24.0ms
4/4
Echo 1500B (DF) 24.1ms
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
0.2ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2eth1-0-12-h5594.edge5-dus1.bb.wiit.network
2001:4ba0:92f4:3::1
2.5ms0%AS24961MYLOC-AS - WIIT AG, DE
3lag13.agr3-dus3.bb.wiit.network
2001:4ba0:ffe9:7d::1
4.2ms0%AS24961MYLOC-AS - WIIT AG, DE
4lag11.core3-dus1.bb.wiit.network
2001:4ba0:ffe9:115::3
0.2ms0%AS24961MYLOC-AS - WIIT AG, DE
5lag8.core1-dus-ix.bb.wiit.network
2001:4ba0:ffe9:8::2
0.3ms0%AS24961MYLOC-AS - WIIT AG, DE
6*-40%-
7at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
20.0ms0%AS3330PROFINET-AT - eww ag, AT
8*-0%-
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---

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

tracepath -6

 1?: [LOCALHOST]                        0.014ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.293ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.272ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.839ms 
 3:  no reply
 4:  lag11.core3-dus1.bb.wiit.network                      0.313ms 
 5:  lag2.core1-dus-ix.bb.wiit.network                     0.531ms 
 6:  de-cix.at-vie-lh-r02.as3330.net                      20.774ms 
 7:  at-vie-lh-r01.v6.as3330.net                          20.222ms 
 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
     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) 27.2ms
3/4
Echo 1500B (DF) 27.2ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::22.0ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2gw.friends.steffann.nl
2a00:8642:1000:f000::1
2.5ms0%*AS203993GNA-DC1-AS - S.J.M. Steffann, NL
3ccr2-ccr1.dc1.nogalliance.org
2a00:8642:dc1:2::b
3.1ms-AS203993GNA-DC1-AS - S.J.M. Steffann, NL
4ams.fra.corou0010.v6.as21013.net
2001:7f8:1::a502:1013:1
21.9ms60%-NA
5*-60%-
62a02:940::1:1d24.2ms10%AS21013ITANDTEL-AS - eww ag, AT
7at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
23.4ms0%AS3330PROFINET-AT - eww ag, AT
8*-0%-
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---

Rate-limited ICMPv6: hop 4, hop 5, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.049ms pmtu 1500
 1:  2a00:8642:42::2                                       2.542ms 
 1:  2a00:8642:42::2                                       2.755ms 
 2:  no reply
 3:  ccr2-ccr1.dc1.nogalliance.org                         2.898ms asymm  2 
 4:  ams.fra.corou0010.v6.as21013.net                     22.903ms asymm  8 
 5:  no reply
 6:  2a02:940::1:1d                                       22.350ms asymm  7 
 7:  at-vie-lh-r01.v6.as3330.net                          23.610ms 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
19:  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) 25.7ms
3/4
Echo 1500B (DF) 25.8ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*---
2*---
32a12:d8c0:101f:103::18.0ms-AS204471KARSOLINK - 2S Computers SRL, IT
4zayo-AS6461.mix-it.net
2001:7f8:b:100:1d1:a5d0:6461:193
8.4ms0%-NA
5*-0%-
6*-10%-
7ae8.er1.mun1.de.zip.zayo.com
2001:438:ffff::407d:1c27
25.4ms0%AS6461ZAYO-6461 - Zayo Bandwidth, US
82a00:16f8:11::7d221.8ms0%AS6461ZAYO-6461 - Zayo Bandwidth, US
9at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
21.5ms0%AS3330PROFINET-AT - eww ag, AT
10*-0%-
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---

Rate-limited ICMPv6: hop 6 (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:  no reply
 3:  no reply
 4:  zayo-AS6461.mix-it.net                                8.797ms 
 5:  2001:438:ffff::407d:1e4a                             25.884ms asymm  6 
 6:  ae15.cr1.fra6.de.zip.zayo.com                        26.006ms 
 7:  ae8.er1.mun1.de.zip.zayo.com                         25.761ms asymm  5 
 8:  no reply
 9:  at-vie-lh-r01.v6.as3330.net                          22.486ms asymm  7 
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
     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) 18.0ms
4/4
Echo 1500B (DF) 18.0ms
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
2*---
32a00:ee1:800:9::11.8ms-AS5603SIOL-NET - Telekom Slovenije, d.d., SI
42a00:ee0:1:10::21.1ms0%AS5603SIOL-NET - Telekom Slovenije, d.d., SI
5*-0%-
6at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
14.6ms0%AS3330PROFINET-AT - eww ag, AT
7*-0%-
8*-0%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---

tracepath -6

 1?: [LOCALHOST]                        0.021ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.661ms 
 1:  fw1-lju.6connect.com                                  0.613ms 
 2:  ccr-to-fw-ccr1-gw-lju.6connect.com                    0.935ms 
 3:  no reply
 4:  2a00:ee0:1:15::2                                      1.384ms asymm  3 
 5:  2a00:ee0:1:10::2                                      1.682ms pmtu 1500
 5:  de-cix.at-vie-lh-r02.as3330.net                      14.607ms asymm  6 
 6:  at-vie-lh-r01.v6.as3330.net                          14.332ms asymm  7 
 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
     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) 13.5ms
4/4
Echo 1500B (DF) 13.9ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*---
22a01:260:1::2253.5ms0%*AS34779T-2-AS - T-2, d.o.o., SI
32a01-260-1-1--9a.core6.t-2.net
2a01:260:1:1::9a
3.0ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42a01-260-1-1--38.core6.t-2.net
2a01:260:1:1::38
3.1ms-AS34779T-2-AS - T-2, d.o.o., SI
5100ge0-0-0-31.core1.vie1.he.net
2001:470:0:4a8::1
13.2ms20%AS6939HURRICANE - Hurricane Electric LLC, US
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
11.8ms0%-NA
7vix-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
11.3ms0%-NA
82a01:190:15ff:32::212.3ms0%AS1764NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT
9at-vie-lh-r02.v6.as3330.net
2a02:5e0:0:1::1019
10.3ms-AS3330PROFINET-AT - eww ag, AT
10at-vie-lh-r02.v6.as3330.net
2a02:5e0:0:1::1019
10.5ms0%AS3330PROFINET-AT - eww ag, AT
11at-vie-lh-r01.v6.as3330.net
2a02:5e0:0:1::1006
45.2ms0%AS3330PROFINET-AT - eww ag, AT
12*-0%-
13*---
14*---
15*---
16*---
17*---
18*---
19*---

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

tracepath -6

 1?: [LOCALHOST]                        0.027ms pmtu 1500
 1:  no reply
 2:  2a01:260:1::225                                       2.434ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        3.297ms 
 4:  2a01-260-1-1--38.core6.t-2.net                        3.053ms asymm  3 
 5:  100ge0-0-0-31.core1.vie1.he.net                       9.666ms 
 6:  vix-ip6-et-0-1-2-0-r60.esh.vie.at.nextlayer.net      11.266ms asymm  5 
 7:  ip6-ae2-0-r02.tti.voes.nextlayer.net                 11.041ms asymm  8 
 8:  ip6-ae2-0-r02.tti.voes.nextlayer.net                 10.103ms 
 9:  2a01:190:15ff:32::2                                  10.470ms asymm  6 
10:  at-vie-lh-r01.v6.as3330.net                          10.275ms 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
19:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500