As can be seen in the duplicate bug, #80279, advertisements are being
sent.
[EMAIL PROTECTED]:/proc/sys/net/ipv6# tcpdump -i eth1 -vvv -s 512 ip6
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 512 bytes
18:34:36.919252 IP6 (hlim 255, next-header: ICMPv6 (58), length: 56)
fe80::201:80ff:fe5f:9b4a > ip6-allnodes: [icmp6 sum ok] ICMP6, router
advertisement, length 56
hop limit 64, Flags [none], pref medium, router lifetime 1800s,
reachable time 0s, retrans time 0s
source link-address option (1), length 8 (1): 00:07:e9:0f:d3:aa
0x0000: 0007 e90f d3aa
prefix info option (3), length 32 (4): 2001:7b8:3:1000::/64, Flags
[onlink, auto], valid time 2592000s, pref. time 604800s
0x0000: 40c0 0027 8d00 0009 3a80 0000 0000 2001
0x0010: 07b8 0003 1000 0000 0000 0000 0000
Also, not IPv6 is broken. Only the processing of RA.
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ipv6 autoconfiguration doesn't work anymore
https://launchpad.net/bugs/78248
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