is it possible to use the carp(4) protocol with vtnet(4) interfaces ( which is used, for example, in bhyve(8) ) Currently, the standard carp init operation causes an SIOCGVH error: /sbin/ifconfig vtnet0 vhid 1 advskew 100 pass pass 10.10.10.10/24 alias ifconfig: SIOCGVH: Protocol not supported