AS212559 LUMIA-AS LUMIA NETWORK SRL

IPv6 prefix announced, but nothing inside is responding yet. AS212559 announces 3 IPv6 prefix(es) to the global routing table - that’s the part that BGP and our route-server scrape confirm. But our active discovery (curated hostnames, holder-derived domains, authoritative DNS NS/SOA/MX, certificate-transparency hostnames, RIPE Atlas, RDAP, IPv6 Hitlist) found no ICMPv6-responsive host inside the prefix on either vantage, and a yarrp pass against random addresses inside the prefix produced zero in-prefix hops (no router on the path through the AS replied with Time-Exceeded for any random target). That combination usually means the announcement is configured but the addresses inside aren’t in active use yet. The BGP route is there; the operational deployment is still ahead.

AS overview

Test target: 2a10:78c0::1 · (no live host found) · address space: PA · prefixes announced: 3

prefix(es): 2a10:78c0::/29, 2a10:ef40::/29, 2a11:2900::/29

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 2021-04-08. IPv6 LAN: 2001:7f8:b:100:1d1:a521:2559:160. Locations: -.

RPKI & ASPA

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

Prefix	RPKI state	Reason	Covering VRP(s)
`2a10:78c0::/29`	✓ valid	matched VRP (correct origin, length within maxLength)	AS212559 /29 maxLen 32 (ripe)
`2a10:ef40::/29`	✓ valid	matched VRP (correct origin, length within maxLength)	AS212559 /29 maxLen 32 (ripe)
`2a11:2900::/29`	✓ valid	matched VRP (correct origin, length within maxLength)	AS212559 /29 maxLen 32 (ripe)

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

We probed 30 arbitrary IPv6 address(es) inside AS212559's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:1bd0:1:41::2 at hop 10 - that router answers ICMPv6 Echo. This is not in AS212559'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 active test inconclusive: no Echo Reply to 1300-byte probe.
method: ICMPv6 Echo + forged PTB, tested 2026-05-25T12:37:48Z

Failure detail — what to grep in your logs

vantage	our source	your target	method	result	tested (UTC)
go6lab	`2a00:8642:42::75`	`2a10:78c0::1`	`icmp6-echo`	no_echo	2026-05-25T12:37:48Z
karsolink	`2a12:d8c0:105a:9001::a154`	`2a10:78c0::1`	`icmp6-echo`	no_echo	2026-05-25T12:49:15Z
odin	`2607:fae0:a000::42`	`2a10:78c0::1`	`icmp6-echo`	no_echo	2026-05-25T12:37:18Z

Attempt log (go6lab):

icmp6-echo → no_echo: no Echo Reply to 1300-byte probe
dns-tcp → no_tcp: connect failed: timed out
tls → no_tcp: TLS connect failed
http → no_tcp: tcp/80 not open

Attempt log (karsolink):

icmp6-echo → no_echo: no Echo Reply to 1300-byte probe
dns-tcp → no_tcp: connect failed: timed out
tls → no_tcp: TLS connect failed
http → no_tcp: tcp/80 not open

Attempt log (odin):

icmp6-echo → no_echo: no Echo Reply to 1300-byte probe
dns-tcp → no_tcp: connect failed: timed out
tls → no_tcp: TLS connect failed
http → no_tcp: tcp/80 not open

To match the corresponding ICMPv6 packet on your side (host firewall, AS edge, or transit tap), look for our PTBs around the timestamps above:

sudo tcpdump -i any -n -e 'icmp6 and ip6[40] = 2 and (src host 2607:fae0:a000::42 or src host 2a00:8642:42::75 or src host 2a12:d8c0:105a:9001::a154)'

If you see our PTBs arriving but the destination's TCP/Echo flow does not shrink, the drop is in the destination kernel (cause 3 below). If you don't see them at all, drop is upstream of you (cause 2). If you only see them from one of our two source IPs, the drop is path-asymmetric — one transit on the asymmetric route is filtering, the other is not.

From NL host (go6lab) transit only unreachable

filter likely at: past AS28716 (RETELIT-AS) · min PMTU on path: 1500

0/4

Echo small (56B) -

0/4

Echo 1500B (DF) -

Type 1 dest-unreach

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	2a00:8642:42::3	8.1ms	0%	AS203993	STEFFANN-DC-AS - S.J.M. Steffann, NL
2	gw.friends.steffann.nl 2a00:8642:1000:f000::1	1.6ms	0%*	AS203993	STEFFANN-DC-AS - S.J.M. Steffann, NL
3	2a00:1ca8:1::194	2.2ms	0%	AS50673	Serverius-as - Serverius Holding B.V., NL
4	2a03:3f40::10:33	4.8ms	0%	AS50673	Serverius-as - Serverius Holding B.V., NL
5	ae22-404.ams10.core-backbone.com 2a01:4a0:1338:155::1	5.3ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
6	ae16-2074.fra10.core-backbone.com 2a01:4a0:0:2074::3	11.3ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
7	ae2-2021.fra20.core-backbone.com 2a01:4a0:0:2021::4	11.8ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
8	6te2-2.mivivxmr01.retelit.it 2001:7f8::702c:0:1	21.5ms	0%	-	NA
9	2001:1bd0:0:2::7	25.0ms	0%	AS28716	RETELIT-AS - Retelit Digital Services S.p.A., IT
10	2001:1bd0:1:41::2	22.0ms	0%	AS28716	RETELIT-AS - Retelit Digital Services S.p.A., IT
11	*	-	-	-
12	*	-	-	-
13	*	-	-	-
14	*	-	-	-
15	*	-	-	-
16	*	-	-	-
17	*	-	-	-
18	*	-	-	-
19	*	-	-	-
20	*	-	-	-
21	*	-	-	-
22	*	-	-	-
23	*	-	-	-
24	*	-	-	-

tracepath -6

 1?: [LOCALHOST]                        0.058ms pmtu 1500
 1:  2a00:8642:42::3                                       2.152ms 
 1:  2a00:8642:42::3                                       1.604ms 
 2:  gw.friends.steffann.nl                                2.066ms 
 3:  2a00:1ca8:1::194                                      2.654ms 
 4:  2a03:3f40::10:33                                      6.214ms 
 5:  ae22-404.ams10.core-backbone.com                      6.193ms 
 6:  ae16-2074.fra10.core-backbone.com                    11.187ms 
 7:  ae2-2021.fra20.core-backbone.com                     11.510ms 
 8:  6te2-2.mivivxmr01.retelit.it                         21.839ms asymm  7 
 9:  2001:1bd0:0:2::7                                     24.481ms asymm  8 
10:  ???                                                  22.427ms asymm  9 
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
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500

From ITA host (Karsolink) transit only unreachable

filter likely at: no path · min PMTU on path: 1500

0/4

Echo small (56B) -

0/4

Echo 1500B (DF) -

Type 1 dest-unreach

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	*	-	0%*	-
2	*	-	0%*	-
3	2a12:d8c0:101f:103::1	8.5ms	10%	AS204471	KARSOLINK - 2S Computers SRL, IT
4	lumianetwork-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:a521:2559:160	9.0ms	0%	-	NA
5	*	-	-	-
6	*	-	-	-
7	*	-	-	-
8	*	-	-	-
9	*	-	-	-
10	*	-	-	-
11	*	-	-	-
12	*	-	-	-
13	*	-	-	-
14	*	-	-	-
15	*	-	-	-
16	*	-	-	-
17	*	-	-	-
18	*	-	-	-
19	*	-	-	-
20	*	-	-	-
21	*	-	-	-
22	*	-	-	-
23	*	-	-	-
24	*	-	-	-

Rate-limited ICMPv6: hop 3 (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:  no reply
 3:  2a12:d8c0:101f:103::1                                 8.983ms 
 4:  lumianetwork-v6.mix-it.net                            9.378ms 
 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
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500

From SLO host (6connect) transit only unreachable

filter likely at: no path · min PMTU on path: 1500

0/4

Echo small (56B) -

0/4

Echo 1500B (DF) -

Type 1 dest-unreach

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	fw1-lju.6connect.com 2607:fae0:a000::2	0.3ms	0%*	AS8038	6CONNECT - 6connect, Inc., US
2	ccr-to-fw-ccr1-gw-lju.6connect.com 2607:fae0:a000:2::2	0.6ms	-	AS8038	6CONNECT - 6connect, Inc., US
3	2a03:a100:0:201:1::1	0.5ms	40%	AS56635	XENYA - XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana, SI
4	*	-	0%	-
5	*	-	-	-
6	port-channel1.core1.zag2.he.net 2001:470:0:2ea::2	3.9ms	0%	AS6939	HURRICANE - Hurricane Electric LLC, US
7	*	-	-	-
8	lumianetwork-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:a521:2559:160	10.9ms	0%	-	NA
9	*	-	-	-
10	*	-	-	-
11	*	-	-	-
12	*	-	-	-
13	*	-	-	-
14	*	-	-	-
15	*	-	-	-
16	*	-	-	-
17	*	-	-	-
18	*	-	-	-
19	*	-	-	-
20	*	-	-	-
21	*	-	-	-
22	*	-	-	-
23	*	-	-	-
24	*	-	-	-

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

tracepath -6

 1?: [LOCALHOST]                        0.027ms pmtu 1500
 1:  fw1-lju.6connect.com                                  0.512ms 
 1:  fw1-lju.6connect.com                                  0.420ms 
 2:  no reply
 3:  2a03:a100:0:201:1::1                                  0.814ms 
 4:  e0-1.core1.lju1.he.net                                2.417ms 
 5:  no reply
 6:  port-channel1.core1.zag2.he.net                       4.081ms 
 7:  no reply
 8:  lumianetwork-v6.mix-it.net                           10.796ms asymm  7 
 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
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500