Non, les RA sont reçus. En installant iproute2, je vois que le compteur d'expiration ne tombe pas à 0, j'ai aussi des captures réseau:
tcpdump -nvvi eth0 icmp6
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
13:29:11.002345 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1808:29ff:fedd:7edb
source link-address option (1), length 8 (1): 56:01:ad:4e:a7:59
0x0000: 5601 ad4e a759
13:29:11.002379 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::1808:29ff:fedd:7edb, Flags [solicited]
13:31:16.331167 IP6 (flowlabel 0xbb865, hlim 255, next-header ICMPv6 (58) payload length: 128) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 128
hop limit 64, Flags [managed, other stateful], pref medium, router lifetime 1800s, reachable time 0ms, retrans timer 0ms
source link-address option (1), length 8 (1): 56:01:ad:4e:a7:59
0x0000: 5601 ad4e a759
mtu option (5), length 8 (1): 1480
0x0000: 0000 0000 05c8
prefix info option (3), length 32 (4): 2001:470:c977::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
0x0000: 40c0 ffff ffff ffff ffff 0000 0000 2001
0x0010: 0470 c977 0000 0000 0000 0000 0000
prefix info option (3), length 32 (4): fde2:acdc:8af2::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
0x0000: 40c0 ffff ffff ffff ffff 0000 0000 fde2
0x0010: acdc 8af2 0000 0000 0000 0000 0000
rdnss option (25), length 24 (3): lifetime 1800s, addr: fde2:acdc:8af2::1
0x0000: 0000 0000 0708 fde2 acdc 8af2 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
13:31:16.331832 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2001:470:c977:0:e5a8:7072:8d05:eceb, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:31:16.331972 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fde2:acdc:8af2:0:8203:6031:f84d:83f6, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:31:17.332269 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2001:470:c977:0:e5a8:7072:8d05:eceb, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:31:17.332705 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fde2:acdc:8af2:0:8203:6031:f84d:83f6, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:31:18.333927 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2001:470:c977:0:e5a8:7072:8d05:eceb, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:31:18.334053 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fde2:acdc:8af2:0:8203:6031:f84d:83f6, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:34:35.079510 IP6 (flowlabel 0x3630b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:815::2003: [icmp6 sum ok] ICMP6, echo request, seq 0
13:34:36.079679 IP6 (flowlabel 0x3630b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:815::2003: [icmp6 sum ok] ICMP6, echo request, seq 1
13:34:37.079820 IP6 (flowlabel 0x3630b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:815::2003: [icmp6 sum ok] ICMP6, echo request, seq 2
13:34:40.320745 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::5401:adff:fe4e:a759
source link-address option (1), length 8 (1): 1a:08:29:dd:7e:db
0x0000: 1a08 29dd 7edb
13:34:40.320953 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::5401:adff:fe4e:a759, Flags [router, solicited]
13:34:45.322216 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1808:29ff:fedd:7edb
source link-address option (1), length 8 (1): 56:01:ad:4e:a7:59
0x0000: 5601 ad4e a759
13:34:45.322243 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::1808:29ff:fedd:7edb, Flags [solicited]
13:37:12.101155 IP6 (flowlabel 0x5d079, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:809::2003: [icmp6 sum ok] ICMP6, echo request, seq 0
13:37:13.101349 IP6 (flowlabel 0x5d079, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:809::2003: [icmp6 sum ok] ICMP6, echo request, seq 1
13:37:14.101473 IP6 (flowlabel 0x5d079, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:809::2003: [icmp6 sum ok] ICMP6, echo request, seq 2
13:37:17.248729 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::5401:adff:fe4e:a759
source link-address option (1), length 8 (1): 1a:08:29:dd:7e:db
0x0000: 1a08 29dd 7edb
13:37:17.248891 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::5401:adff:fe4e:a759, Flags [router, solicited]
13:37:22.282067 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1808:29ff:fedd:7edb
source link-address option (1), length 8 (1): 56:01:ad:4e:a7:59
0x0000: 5601 ad4e a759
13:37:22.282097 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::1808:29ff:fedd:7edb, Flags [solicited]
13:37:26.791035 IP6 (flowlabel 0x1370a, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, echo request, seq 0
13:37:26.791188 IP6 (flowlabel 0xa8f5b, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, echo reply, seq 0
13:37:27.791118 IP6 (flowlabel 0x1370a, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, echo request, seq 1
13:37:27.791274 IP6 (flowlabel 0xa8f5b, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, echo reply, seq 1
13:37:28.791204 IP6 (flowlabel 0x1370a, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, echo request, seq 2
13:37:28.791380 IP6 (flowlabel 0xa8f5b, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, echo reply, seq 2
13:37:29.791290 IP6 (flowlabel 0x1370a, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::1808:29ff:fedd:7edb > fe80::5401:adff:fe4e:a759: [icmp6 sum ok] ICMP6, echo request, seq 3
13:37:29.791431 IP6 (flowlabel 0xa8f5b, hlim 64, next-header ICMPv6 (58) payload length: 64) fe80::5401:adff:fe4e:a759 > fe80::1808:29ff:fedd:7edb: [icmp6 sum ok] ICMP6, echo reply, seq 3
13:37:37.610661 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 0
13:37:38.610831 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 1
13:37:39.610926 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 2
13:37:40.611013 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 3
13:37:41.611124 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 4
13:37:42.611220 IP6 (flowlabel 0x81f82, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:470:c977:0:1808:29ff:fedd:7edb > 2a00:1450:4007:80a::2003: [icmp6 sum ok] ICMP6, echo request, seq 5
13:39:13.863416 IP6 (flowlabel 0xbb865, hlim 255, next-header ICMPv6 (58) payload length: 128) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 128
hop limit 64, Flags [managed, other stateful], pref medium, router lifetime 1800s, reachable time 0ms, retrans timer 0ms
source link-address option (1), length 8 (1): 56:01:ad:4e:a7:59
0x0000: 5601 ad4e a759
mtu option (5), length 8 (1): 1480
0x0000: 0000 0000 05c8
prefix info option (3), length 32 (4): 2001:470:c977::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
0x0000: 40c0 ffff ffff ffff ffff 0000 0000 2001
0x0010: 0470 c977 0000 0000 0000 0000 0000
prefix info option (3), length 32 (4): fde2:acdc:8af2::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
0x0000: 40c0 ffff ffff ffff ffff 0000 0000 fde2
0x0010: acdc 8af2 0000 0000 0000 0000 0000
rdnss option (25), length 24 (3): lifetime 1800s, addr: fde2:acdc:8af2::1
0x0000: 0000 0000 0708 fde2 acdc 8af2 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
13:39:13.864019 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2001:470:c977:0:e5a8:7072:8d05:eceb, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
13:39:13.864254 IP6 (flowlabel 0xab072, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::bc69:42c4:9434:870e > ff02::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fde2:acdc:8af2:0:8203:6031:f84d:83f6, Flags [override]
destination link-address option (2), length 8 (1): b2:98:84:8b:82:47
0x0000: b298 848b 8247
Le routeur reste pingable:
ping fe80::5401:adff:fe4e:a759 -I eth0
PING fe80::5401:adff:fe4e:a759 (fe80::5401:adff:fe4e:a759): 56 data bytes
64 bytes from fe80::5401:adff:fe4e:a759: seq=0 ttl=64 time=0.233 ms
64 bytes from fe80::5401:adff:fe4e:a759: seq=1 ttl=64 time=0.190 ms
64 bytes from fe80::5401:adff:fe4e:a759: seq=2 ttl=64 time=0.218 ms
64 bytes from fe80::5401:adff:fe4e:a759: seq=3 ttl=64 time=0.211 ms
C'est du proxmox, on a un bridge pour tous les containers.
En IPv4, tout fonctionne, cela reste stable.
Je me pose la question en effet de savoir si je n'aurais pas pris en compte d'autres mécanismes.