tri:1$ ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33200
priority: 0
groups: lo
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>...