On 2015/11/02 13:56, loth...@iki.fi wrote: > The machine sending the router advertisements in question is OpenBSD > 5.8-stable > (rtadvd running on carp interface), and the prefix information is visible on > the wire:
Does the 5.8-stable machine have any autoconf addresses? > 00:00:5e:00:01:09 33:33:00:00:00:01 86dd 166: fe80::200:5eff:fe00:109 > > ff02::1: icmp6: router advertisement(chlim=64, router_ltime=1800, > reachable_time=0, retrans_time=0)(prefix info: LA valid_ltime=2592000, > preferred_ltime=604800, prefix=2001:708:20:e336::/64)(unknown opt_type=25, > opt_len=5)(unknown opt_type=31, opt_len=3) [icmp6 cksum ok] (len 112, hlim > 255) There's no "src lladdr" in here. Do you explicitly set 'nolladdr' in rtadvd.conf?