bash-2.05b$ ifconfig
sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet6 fe80::201:6cff:fed3:2e06%sis0 prefixlen 64 scopeid 0x1 
        inet 10.234.3.4 netmask 0xff000000 broadcast 10.255.255.255
        ether 00:01:6c:d3:2e:06
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
pflog0: flags=0<> mtu 33208
pfsync0: flags=0<> mtu 2020