AS197075 - ACTIVENETWORK-AS Active NetworkPARFC 4890 ✓RPKI ✓ 7/7ASPA -

AS overview

Test target: 2a02:2420:0:8000::16 · auth1.activenetwork.it · address space: PA · prefixes announced: 7

prefix(es): 2a03:ff80::/29, 2a02:2420:10b::/48, 2a0a:e6c0::/29, 2a02:2420:10a::/48, 2a02:2420:1000::/40, 2a02:2420::/36, 2a02:2420::/32

MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering

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

At least one router inside AS197075's announced prefix replied during the random-target probe. Hop(s): 2a02:2420:0:4040::1, 2a02:2420:10a:0:d47d:a92e:157d:f58. 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 2026-09-23T12:02:31Z

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 ↗

• ● SRB host (SOX, Belgrade)
• ● DE host (Berlin)
• ● DE host (Düsseldorf)
• ● NL host (go6lab)
• ● ITA host (Karsolink)
• ● SLO host (6connect)
• ● SLO host (T-2)
• ── solid line = echo reply, PTB honored (clean reach)
• — — dashed line = echo reply but PTB not honored (RFC 4890 violation)
• no line = no echo reply (never reached)
• ◉ target: green = clean, amber = reachable-but-violation / unreachable
• ⚠ suspected drop AS
• ⋯ silent (unanswered) hops
• ● IXP hop

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

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

Path (traceroute + mtr + PTR)

Rate-limited ICMPv6: hop 4, hop 6, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.011ms pmtu 1500
 1:  _gateway                                              0.346ms 
 1:  _gateway                                              0.410ms 
 2:  sox-pn.sox.rs                                         0.400ms 
 3:  2001:7f8:1e:8::3d                                     0.537ms asymm  2 
 4:  ae8-930.RT.IRX.VIE.AT.retn.net                       13.545ms asymm  3 
 5:  RT.MIX.MIL.IT.retn.net                               24.397ms asymm  4 
 6:  activenetwork-v6.mix-it.net                          22.230ms asymm  7 
 7:  2a02:2420:0:43::                                     30.423ms asymm  8 
 8:  2a02:2420:0:c0::1                                    31.178ms asymm  9 
 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

Path (traceroute + mtr + PTR)

tracepath -6

 1?: [LOCALHOST]                        0.042ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.777ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.670ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.023ms 
 3:  ae0-150.cr10.fra01.lwlcom.net                        10.380ms asymm  7 
 4:  ae6-3257.cr5-fra2.ip6.gtt.net                        10.026ms asymm  9 
 5:  2001:668:0:2:ffff:0:5995:8d0a                        18.444ms asymm  9 
 6:  2001:668:0:3:ffff:1:0:3b26                           19.880ms asymm  9 
 7:  2a02:2420:0:43::                                     28.406ms asymm 10 
 8:  2a02:2420:0:c0::1                                    28.837ms asymm 11 
 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 (Düsseldorf)   openRFC 4890 ✓

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

Path (traceroute + mtr + PTR)

Rate-limited ICMPv6: hop 12, hop 13 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.029ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.365ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.271ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.276ms 
 3:  no reply
 4:  lag30.core3-dus1.bb.wiit.network                      0.464ms 
 5:  lag0-vl1011.core1-fra-ix.bb.wiit.network              4.639ms 
 6:  lag0-vl1001.core1-nbg-ncd.bb.wiit.network             7.257ms 
 7:  lag0-vl6.core2-nbg-ncd.bb.wiit.network                7.149ms 
 8:  lag0-vl1006.core2-muc2.bb.wiit.network               14.342ms 
 9:  lag0-vl1009.core1-muc-eq3.bb.wiit.network            45.921ms 
10:  lag0-vl1001.core1-pda-vsix.bb.wiit.network           20.550ms 
11:  lag0-vl1001.core1-mil-mix.bb.wiit.network            20.411ms asymm  9 
12:  activenetwork-v6.mix-it.net                          21.471ms asymm  8 
13:  no reply
14:  2a02:2420:0:c0::1                                    29.894ms asymm 10 
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

Path (traceroute + mtr + PTR)

Rate-limited ICMPv6: hop 7, hop 8 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.035ms pmtu 1500
 1:  2a00:8642:42::2                                       1.891ms 
 1:  2a00:8642:42::2                                       3.572ms 
 2:  no reply
 3:  2a00:1ca8:1::194                                      7.845ms 
 4:  2a03:3f40::10:33                                      7.813ms 
 5:  ae1-499.RT.SRV.DRO.NL.retn.net                        9.468ms 
 6:  RT.MIX.MIL.IT.retn.net                               24.402ms 
 7:  activenetwork-v6.mix-it.net                          23.406ms 
 8:  2a02:2420:0:43::                                     27.929ms 
 9:  2a02:2420:0:c1::1                                    29.947ms 
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

Path (traceroute + mtr + PTR)

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]                        0.028ms pmtu 1500
 1:  no reply
 2:  2a12:d8c0:109f:121::a1                                0.942ms 
 3:  2a12:d8c0:101f:103::1                                 8.904ms 
 4:  activenetwork-v6.mix-it.net                           8.600ms asymm  6 
 5:  2a02:2420:0:43::                                     17.712ms asymm  7 
 6:  2a02:2420:0:c0::1                                    17.578ms 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
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

Path (traceroute + mtr + PTR)

Rate-limited ICMPv6: hop 4, hop 6 (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                                  0.547ms 
 1:  fw1-lju.6connect.com                                  0.480ms 
 2:  no reply
 3:  2a03:a100:0:201:1::1                                  1.302ms 
 4:  2a03:a100:0:201:1::1                                  1.160ms pmtu 1500
 4:  e0-1.core1.lju1.he.net                                2.324ms 
 5:  no reply
 6:  port-channel1.core1.zag2.he.net                       4.291ms 
 7:  no reply
 8:  activenetwork-v6.mix-it.net                          12.868ms 
 9:  2a02:2420:0:43::                                     20.577ms 
10:  2a02:2420:0:c1::1                                    20.596ms 
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

Path (traceroute + mtr + PTR)

Rate-limited ICMPv6: hop 6, hop 7, hop 11, hop 12 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.029ms pmtu 1500
 1:  no reply
 2:  2a01:260:1::225                                       4.688ms 
 3:  2a01-260-1-1--9c.core6.t-2.net                        3.525ms 
 4:  hurricane-electric.nikhef.nlsix.net                  34.531ms 
 5:  hurricane-electric.nikhef.nlsix.net                  34.170ms asymm  4 
 6:  be3.core4.fra1.he.net                                48.725ms asymm  7 
 7:  be10.core1.zrh2.he.net                               49.733ms asymm  8 
 8:  be10.core1.zrh2.he.net                               48.666ms 
 9:  be1.core1.mil2.he.net                                34.827ms asymm  7 
10:  activenetwork-v6.mix-it.net                          32.937ms asymm  7 
11:  2a02:2420:0:43::                                     41.376ms asymm  8 
12:  2a02:2420:0:43::                                     48.070ms asymm  8 
13:  2a02:2420:0:c0::1                                    40.365ms asymm  9 
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