I am trying to use BIRD v2.0.8 to emit ICMPv6 RAs from a HA pair of routers. The default router address of the router (fe80::1) is failed over using the VRRP protocol, so it is only present on a single router at any given time. I have run into two challenges I cannot quite figure out how to solve: 1) How to make BIRD only emit RAs if the router is active, i.e., only on interfaces where the fe80::1 address is configured. (It appears that RAdv does not support the «interface "*" fe80::1/128 {};» syntax; it just complains «Interface name/mask expected, not IP prefix»). 2) How to make BIRD use the fe80::1 default router address as the source address of the emitted RAs instead of the EUI-64-generated link-local address (which will not fail over to the standby router in the event of a failure, and should therefore not be used as a router by the hosts receiving the RAs). I am grateful for any suggestions. Tore