build OK
tap0
carp0
carp0: state set to 2
--- ifconfig carp0 ---
carp0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,PROXY> metric 0 mtu 1500
	options=102<TXCSUM,TSO>
	ether 00:00:5e:00:01:01
	inet 10.0.0.100 netmask 0xffffff00 broadcast 10.0.0.255
	groups: carp
	carp: MASTER vhid 1 advbase 1 advskew 100
	carpdev: tap0
--- ifconfig tap0 ---
tap0: flags=808943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PROXY> metric 0 mtu 1500
	ether 00:bd:b0:70:02:00
	inet6 fe80::2bd:b0ff:fe70:200%tap0 prefixlen 64 tentative scopeid 0x3
--- M_CARP usage (vmstat -m) BEFORE destroy scenario ---
               CARP       4   1.83K       0    390M        4