Router 2 carp1: flags=8803<UP,BROADCAST,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:00:00:00:00:00 priority: 0 carp: INIT carpdev none vhid 2 advbase 1 advskew 0 groups: carp
This mightily looks like some other interface is trying to use the same IP-address (the 00:00:00:00:00:00 hints at that).
In that case the carp interface naturally remains at INIT. Marcus
