Carp stuck in INIT

[Freddie Cash]

FreeBSD 9 and FreeBSD 10 have very different implementations of CARP, and
they are configured differently.

On 9, you need to have an IP configured on the interface before you
configure the shared IP, and the subnet of the shared IP is used to
determine the interface to use. And there's carpX pseudo-interface created.
This requires at least 3 IPs in a subnet to work correctly.

On 10, CARP configuration is done directly on an interface via ifconfig and
is added directly to the specified IP. You only need 1 IP for this to work
correctly. There's no longer carpX pseudo-interfaces to deal with.

Highly recommend using 10+ if you're using carp.