AS3302 - AS-RETELIT-IRIDEOS Retelit Digital ServicesPARFC 4890 ✓RPKI ✗ 1/3ASPA -

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AS overview

Test target: 2001:750::1:1 · static prefix probe · address space: PA · prefixes announced: 3

prefix(es): 2001:750::/29, 2a02:7d8:e00::/44, 2a02:7d8::/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
2001:750::1:1prbrefusedrefused-refusedrefused-refusedrefused-??-refusedrefused-refusedrefused-refusedrefused-

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 2022-10-31. IPv6 LAN: 2001:7f8:b:100:1d1:a5d0:3302:21. Locations: -.

RPKI & ASPA

2 of 3 prefix(es) covered by a valid ROA, 1 invalid.

PrefixRPKI stateReasonCovering VRP(s)
2001:750::/29✓ validmatched VRP (correct origin, length within maxLength)AS3302 /29 maxLen 32 (ripe); AS15589 /29 maxLen 32 (ripe)
2a02:7d8:e00::/44✗ invalidmaxLength too short for the announced prefixAS3302 /32 maxLen 32 (ripe)
2a02:7d8::/32✓ validmatched VRP (correct origin, length within maxLength)AS3302 /32 maxLen 32 (ripe)

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

At least one router inside AS3302's announced prefix replied during the random-target probe. Hop(s): 2a02:7d8::1. 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 2026-09-23T12:00:11Z

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 AS3302

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

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

4/4
Echo small (56B) 33.6ms
4/4
Echo 1500B (DF) 33.7ms
no
Type 1 dest-unreach
443,80
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
0.4ms0%AS13004SOX - Serbian Open Exchange DOO, RS
3e0-33.core2.beg1.he.net
2001:470:1:6e5::1
1.3ms60%AS6939HURRICANE - Hurricane Electric LLC, US
4e0-34.core2.bts1.he.net
2001:470:0:33f::2
8.1ms70%AS6939HURRICANE - Hurricane Electric LLC, US
5100ge0-0-0-2.core1.vie1.he.net
2001:470:0:412::1
12.1ms40%AS6939HURRICANE - Hurricane Electric LLC, US
6*---
7irideos-AS3302-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO
2001:7f8:b:100:1d1:a5d0:3302:21
26.4ms30%-NA
8*---
9*---
10*---
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---

Rate-limited ICMPv6: hop 3, hop 4, hop 5, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.027ms pmtu 1500
 1:  _gateway                                              0.565ms 
 1:  _gateway                                              0.412ms 
 2:  sox-pn.sox.rs                                         0.510ms 
 3:  e0-33.core2.beg1.he.net                               1.819ms 
 4:  e0-34.core2.bts1.he.net                               8.649ms 
 5:  100ge0-0-0-2.core1.vie1.he.net                       11.079ms 
 6:  no reply
 7:  retelit.topix.it                                     26.891ms asymm  6 
 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 (Berlin)   openRFC 4890 ✓

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

4/4
Echo small (56B) 28.7ms
4/4
Echo 1500B (DF) 28.6ms
no
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
0.2ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2ae0-2453.cr10.ber01.lwlcom.net
2a06:d1c0::dead:beef:1c02
0.6ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3ae0-150.cr10.fra01.lwlcom.net
2a00:c380:b200:230::174
10.1ms0%AS50629LWLCOM - LWLcom GmbH, DE
4ae0-20.cr10.fra07.lwlcom.net
2a00:c380:b200:230::31
10.0ms0%AS50629LWLCOM - LWLcom GmbH, DE
5*-60%-
6*-0%-
72001:1900:5:2:2::64da21.5ms0%AS3356LEVEL3 - Level 3 Parent, LLC, US
8*---
9*---
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]                        0.028ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.378ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.346ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.130ms 
 3:  ae0-150.cr10.fra01.lwlcom.net                        10.210ms asymm  7 
 4:  ae0-20.cr10.fra07.lwlcom.net                         10.679ms asymm  6 
 5:  no reply
 6:  lo0.0.edge1.Milan1.level3.net                        24.166ms asymm  8 
 7:  2001:1900:5:2:2::64da                                21.863ms asymm 10 
 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) 27.5ms
4/4
Echo 1500B (DF) 27.7ms
no
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
8.9ms0%AS24961MYLOC-AS - WIIT AG, DE
3lag13.agr3-dus3.bb.wiit.network
2001:4ba0:ffe9:7d::1
44.1ms0%AS24961MYLOC-AS - WIIT AG, DE
4lag30.core3-dus1.bb.wiit.network
2001:4ba0:ffe9:109::2
0.2ms0%AS24961MYLOC-AS - WIIT AG, DE
5lag0-vl1011.core1-fra-ix.bb.wiit.network
2001:4ba0:ffe9:8a::2
4.2ms0%AS24961MYLOC-AS - WIIT AG, DE
6lag0-vl1001.core1-nbg-ncd.bb.wiit.network
2001:4ba0:ffe9:103e::1
6.9ms0%AS24961MYLOC-AS - WIIT AG, DE
7lag0-vl6.core2-nbg-ncd.bb.wiit.network
2001:4ba0:ffe9:103b::1
7.5ms0%AS24961MYLOC-AS - WIIT AG, DE
82001:4ba0:ffe9:b810.7ms0%-
9lag0-vl1009.core1-muc-eq3.bb.wiit.network
2001:4ba0:ffe9:a7::1
9.9ms0%AS24961MYLOC-AS - WIIT AG, DE
10lag0-vl1001.core1-pda-vsix.bb.wiit.network
2001:4ba0:ffe9:da::2
20.1ms0%AS24961MYLOC-AS - WIIT AG, DE
11lag0-vl1001.core1-mil-mix.bb.wiit.network
2001:4ba0:ffe9:db::2
20.1ms0%AS24961MYLOC-AS - WIIT AG, DE
12lag0-vl5.core3-mil-irid.bb.wiit.network
2001:4ba0:ffe9:9a::2
20.2ms0%AS24961MYLOC-AS - WIIT AG, DE
13*-40%-
14*---
15*---
16*---
17*-0%-
18*---

Rate-limited ICMPv6: hop 13 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.012ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.286ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.674ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network           23.659ms 
 3:  no reply
 4:  lag30.core3-dus1.bb.wiit.network                      0.530ms 
 5:  lag0-vl1011.core1-fra-ix.bb.wiit.network              4.398ms 
 6:  lag0-vl1001.core1-nbg-ncd.bb.wiit.network             6.770ms 
 7:  lag0-vl6.core2-nbg-ncd.bb.wiit.network                6.776ms 
 8:  lag0-vl1006.core2-muc2.bb.wiit.network                9.385ms 
 9:  lag0-vl1009.core1-muc-eq3.bb.wiit.network             9.884ms 
10:  lag0-vl1001.core1-pda-vsix.bb.wiit.network           20.454ms 
11:  lag0-vl1001.core1-mil-mix.bb.wiit.network            20.365ms asymm  9 
12:  lag0-vl5.core3-mil-irid.bb.wiit.network              20.263ms 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 NL host (go6lab)   openRFC 4890 ✓

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

4/4
Echo small (56B) 41.2ms
4/4
Echo 1500B (DF) 40.4ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::21.6ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2*-0%*-
32a00:1ca8:1::1945.1ms0%AS50673Serverius-as - Serverius Holding B.V., NL
42a03:3f40::10:414.2ms0%AS50673Serverius-as - Serverius Holding B.V., NL
52001:978:2:40::3:14.9ms0%AS174COGENT-174 - Cogent Communications, LLC, US
6be3458.ccr42.ams03.atlas.cogentco.com
2001:550:0:1000::9a36:27b9
6.7ms0%AS174COGENT-174 - Cogent Communications, LLC, US
7be2950.ccr42.fra05.atlas.cogentco.com
2001:550:0:1000::9a36:482a
14.7ms0%AS174COGENT-174 - Cogent Communications, LLC, US
8be7944.ccr22.muc03.atlas.cogentco.com
2001:550:0:1000::9a36:4b61
18.9ms0%AS174COGENT-174 - Cogent Communications, LLC, US
9port-channel5891.ccr91.mil02.atlas.cogentco.com
2001:550:0:1000::9a36:3db5
25.1ms0%AS174COGENT-174 - Cogent Communications, LLC, US
10be2155.rcr71.vce01.atlas.cogentco.com
2001:550:0:1000::9a36:2612
31.4ms0%AS174COGENT-174 - Cogent Communications, LLC, US
11be2440.rcr51.rom01.atlas.cogentco.com
2001:550:0:1000::9a36:3832
37.7ms0%AS174COGENT-174 - Cogent Communications, LLC, US
122001:978:2:11::b:253.0ms0%AS174COGENT-174 - Cogent Communications, LLC, US
13*-0%-
14*---
15*---
16*---
17*---
18*---

tracepath -6

 1?: [LOCALHOST]                        0.044ms pmtu 1500
 1:  2a00:8642:42::2                                       1.487ms 
 1:  2a00:8642:42::2                                       2.913ms 
 2:  no reply
 3:  2a00:1ca8:1::194                                     11.557ms 
 4:  2a03:3f40::10:41                                     13.928ms 
 5:  2001:978:2:40::3:1                                    7.110ms 
 6:  be3458.ccr42.ams03.atlas.cogentco.com                11.569ms 
 7:  be2950.ccr42.fra05.atlas.cogentco.com                19.197ms 
 8:  be5516.ccr21.muc03.atlas.cogentco.com                22.195ms 
 9:  port-channel5892.ccr92.mil02.atlas.cogentco.com      31.870ms 
10:  be2434.rcr71.vce01.atlas.cogentco.com                37.201ms 
11:  be2440.rcr51.rom01.atlas.cogentco.com                58.170ms 
12:  2001:978:2:11::b:2                                  103.979ms 
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) 14.8ms
3/4
Echo 1500B (DF) 15.1ms
no
Type 1 dest-unreach
443,80
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1karsolink-01.net.karsolink.com
2a12:d8c0:105a:9001::1
0.2ms-AS204471KARSOLINK - 2S Computers SRL, IT
22a12:d8c0:109f:121::a10.3ms0%*AS204471KARSOLINK - 2S Computers SRL, IT
32a12:d8c0:101f:6::19.7ms0%AS204471KARSOLINK - 2S Computers SRL, IT
4irideos.minap.it
2001:7f8:c5::a500:3302:1
9.4ms80%AS3302IRIDEOS S.p.A.
5*---
6*---
7*---
8*-0%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---

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

tracepath -6

 1?: [LOCALHOST]                        0.028ms pmtu 1500
 1:  karsolink-01.net.karsolink.com                        0.752ms 
 2:  2a12:d8c0:109f:121::a1                                1.212ms 
 3:  2a12:d8c0:109f:106::a2                                3.755ms 
 4:  irideos-AS3302-v6.mix-it.net                          9.442ms 
 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
     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) 20.1ms
3/4
Echo 1500B (DF) 19.7ms
no
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
0.6ms0%*AS80386CONNECT - 6connect, Inc., US
2ccr-to-fw-ccr1-gw-lju.6connect.com
2607:fae0:a000:2::2
0.5ms-AS80386CONNECT - 6connect, Inc., US
32a03:a100:0:201:1::10.6ms90%AS56635XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI
4e0-1.core1.lju1.he.net
2001:470:1:5be::1
2.0ms-AS6939HURRICANE - Hurricane Electric LLC, US
5*---
6port-channel1.core1.zag2.he.net
2001:470:0:2ea::2
7.3ms80%AS6939HURRICANE - Hurricane Electric LLC, US
7*---
8irideos.minap.it
2001:7f8:c5::a500:3302:1
12.7ms0%AS3302IRIDEOS S.p.A.
9*---
10*---
11*---
12*-0%-
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]                        0.024ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.696ms 
 1:  fw1-lju.6connect.com                                  0.580ms 
 2:  no reply
 3:  2a03:a100:0:201:1::1                                  1.006ms 
 4:  2a03:a100:0:201:1::1                                  1.140ms pmtu 1500
 4:  e0-1.core1.lju1.he.net                                2.448ms 
 5:  no reply
 6:  port-channel1.core1.zag2.he.net                       4.085ms 
 7:  no reply
 8:  retelit.topix.it                                     13.144ms 
 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) 39.5ms
4/4
Echo 1500B (DF) 40.3ms
no
Type 1 dest-unreach
443,80
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*-0%*-
22a01:260:1::2251.9ms0%*AS34779T-2-AS - T-2, d.o.o., SI
32a01-260-1-1--9c.core6.t-2.net
2a01:260:1:1::9c
1.7ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42a01-260-1-1--39.core6.t-2.net
2a01:260:1:1::39
2.1ms0%AS34779T-2-AS - T-2, d.o.o., SI
5be1.core2.fra2.he.net
2001:470:e:43::2
39.9ms0%AS6939HURRICANE - Hurricane Electric LLC, US
6be3.core4.fra1.he.net
2001:470:e:5a::2
38.7ms30%AS6939HURRICANE - Hurricane Electric LLC, US
7be10.core1.zrh2.he.net
2001:470:e:153::2
44.2ms0%AS6939HURRICANE - Hurricane Electric LLC, US
8be10.core1.zrh2.he.net
2001:470:e:153::2
44.0ms0%AS6939HURRICANE - Hurricane Electric LLC, US
9be1.core1.mil2.he.net
2001:470:e:dd::1
34.5ms-AS6939HURRICANE - Hurricane Electric LLC, US
10retelit.topix.it
2001:7f8:23:ffff::50
32.7ms--NA
11irideos-AS3302-v6.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO
2001:7f8:b:100:1d1:a5d0:3302:21
32.4ms--NA
12*---
13*---
14*-0%-
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]                        0.029ms pmtu 1500
 1:  2a01:261:313:b814::1                                  0.761ms 
 2:  2a01:260:1::225                                       3.936ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        2.975ms 
 4:  2a01-260-1-1--39.core6.t-2.net                        2.776ms asymm  3 
 5:  be1.core2.fra2.he.net                                35.185ms 
 6:  be3.core4.fra1.he.net                                37.121ms asymm  7 
 7:  be3.core4.fra1.he.net                                39.027ms 
 8:  be10.core1.zrh2.he.net                               46.517ms 
 9:  be1.core1.mil2.he.net                                36.934ms 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
     Too many hops: pmtu 1500
     Resume: pmtu 1500