live-carp control (NO destroy):
	0 packets received (IPv4)
/dev/tap0: wrote 74 bytes (variant A1)
/dev/tap0: wrote 42 bytes (variant A2)
	1 packet received (IPv4)
carp_proto_input: non-mcast packet on interface: carp0
	7 packets sent (IPv4)
	0 packets sent (IPv6)