Dear list,
I found impossible to have a carp interface in rdomain environment on 
both the stable and current distributions.

Inserting this configuration:
 ifconfig em0 up
 ifconfig vlan101 172.26.196.2 netmask 255.255.255.248 vlan 101 vlandev 
em0 rdomain 101
 ifconfig carp101 vhid 1 pass testpw carpdev vlan101 rdomain 101 
172.26.196.6 netmask 255.255.255.248

produces this system messages:
 carp101: trying to send packet on wrong domain. 101 vs. 0, AF 2
 carp101: trying to send packet on wrong domain. 101 vs. 0, AF 2
 carp101: trying to send packet on wrong domain. 101 vs. 0, AF 2
and the carp does not work.

Obviously, removing the "rdomain" option from carp ifconfig, it's works 
but the system installs the route in the default domain and this is 
unwelcome.

Thank you in advance,
Stefano