OpenWRT envoie des RA soit à la demande soit via le multicast:
20:42:27.606028 IP6 (flowlabel 0x39cca, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > fe80::48e5:c3ff:fee6:595b: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
20:44:33.584942 IP6 (flowlabel 0xa9a1b, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
20:54:27.628052 IP6 (flowlabel 0xa9a1b, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
21:02:00.996593 IP6 (flowlabel 0xa9a1b, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
21:08:13.437746 IP6 (flowlabel 0xa9a1b, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
21:15:49.252871 IP6 (flowlabel 0xa9a1b, hlim 255, next-header ICMPv6 (58) payload length: 96) fe80::5401:adff:fe4e:a759 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 96
hop limit 64, Flags [none], 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
rdnss option (25), length 24 (3): lifetime 1800s, addr: 2001:470:c977::1
0x0000: 0000 0000 0708 2001 0470 c977 0000 0000
0x0010: 0000 0000 0001
advertisement interval option (7), length 8 (1): 600ms
0x0000: 0000 0000 0258
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