DHCPv6 in stuttgart gestört

[AVAK]

Hallo,

set 28.04.2023 9:00 bekomme ich keine IP6-Adresse mehr. IP4 bekomme ich.

Ort: 70563 Stuttgart, BW

Tarif: Cable Max 1000

Hardware: Vodafone Station in bridge mode

Anschluss: LAN

Heutige diagnose zeigt, dass DHCPv6 server kein reply liefert. Nach mehrmaligen SLICIT kommt irgendwann ADVERTISE, auf den REQUEST kommt dann kein REPLY mehr. Mehrmalige ausschalt & neustart-Aktionen haben nichts gebracht. Anbei tcpdump:

##########> tcpdump -i wan100 -n -vv '(udp port 546 or 547)'
tcpdump: listening on wan100, link-type EN10MB (Ethernet), snapshot length 262144 bytes
19:15:35.066250 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 0) (vendor-class) (Client-FQDN))
19:15:36.100422 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 103) (vendor-class) (Client-FQDN))
19:15:38.347029 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 328) (vendor-class) (Client-FQDN))
19:15:43.250348 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 818) (vendor-class) (Client-FQDN))
19:15:52.135476 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 1706) (vendor-class) (Client-FQDN))
19:16:09.285340 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 3421) (vendor-class) (Client-FQDN))
19:16:43.413753 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 181) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=6d6caf (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix ::/59 pltime:0 vltime:0)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 6834) (vendor-class) (Client-FQDN))
19:16:43.522593 IP6 (hlim 64, next-header UDP (17) payload length: 181) fe80::1239:e901:2ca6:1770.547 > fe80::18cf:5ff:fe3d:21c6.546: [udp sum ok] dhcp6 advertise (xid=6d6caf (IA_NA IAID:1 T1:21600 T2:34560 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:21600 T2:34560 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (DNS-server 2a02:908:2:b::1 2a02:908:2:a::1) (opt_82))
19:16:43.523783 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 0) (vendor-class) (Client-FQDN))
19:16:43.753724 IP6 (hlim 64, next-header UDP (17) payload length: 181) fe80::1239:e901:2ca6:1770.547 > fe80::18cf:5ff:fe3d:21c6.546: [udp sum ok] dhcp6 advertise (xid=6d6caf (IA_NA IAID:1 T1:21600 T2:34560 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:21600 T2:34560 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (DNS-server 2a02:908:2:b::1 2a02:908:2:a::1) (opt_82))
19:16:44.584883 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 106) (vendor-class) (Client-FQDN))
19:16:46.665398 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 314) (vendor-class) (Client-FQDN))
19:16:50.419588 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 689) (vendor-class) (Client-FQDN))
19:16:57.956714 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 1443) (vendor-class) (Client-FQDN))
19:17:14.475408 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 3095) (vendor-class) (Client-FQDN))
19:17:46.245747 IP6 (flowlabel 0xd3c71, hlim 1, next-header UDP (17) payload length: 227) fe80::18cf:5ff:fe3d:21c6.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=b0d75b (client-ID hwaddr/time type 1 time 576876694 74d435c3c5ec) (server-ID hwaddr/time type 1 time 1530000000 00215eed2c61) (IA_NA IAID:1 T1:0 T2:0 (IA_ADDR 2a02:8070:800::18f pltime:43200 vltime:86400)) (IA_PD IAID:2 T1:0 T2:0 (IA_PD-prefix 2a02:8070:886:7320::/59 pltime:43200 vltime:86400)) (option-request DNS-server DNS-search-list opt_82 opt_83) (elapsed-time 6272) (vendor-class) (Client-FQDN))

[reneromann]

Im Bridge-Modus wird m.W. kein IPv6 durchgereicht, sondern die VF Station liefert dann "nur noch" IPv4-only.

[AVAK]

Das stimmt nicht, IPv6 hat bei mir im Bridge mode 1-2 Jahre probölemlos funktioniert. Auch jetzt laufen IPv6 Pakete als Teil des DHCPv6-Dialogs offensichtlich durch (siehe mein tcpdump-mitschnitt).