How do I get a list of the network interfaces To get a list of the network interfaces on the system run "netstat -i", "netstat -in" or "ifconfig -a". $ ifconfig -a lo0: flags=449 inet 127.0.0.1 netmask ff000000 cnd00: flags=c43 inet 129.134.36.55 netmask ffffff00 broadcast 129.134.36.255 cnd01: flags=c43 inet 129.134.34.55 netmask ffffff00 broadcast 129.134.34.255 This system has 3 network interfaces named lo0, cnd00, and cnd01. The following is the netstat output. $ netstat -i Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Collis lo0 8232 local localhost 46936 0 46936 0 0 cnd00 1500 ssd-net rudolph 2722098 0 1997825 0 0 cnd01 1500 ssd-xt-net rudolphxt 1285113 0 1578085 0 0 $ netstat -in Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Collis lo0 8232 127.0.0.0 127.0.0.1 46936 0 46936 0 0 cnd00 1500 129.134.36 129.134.36 2722049 0 1997800 0 0 cnd01 1500 129.134.34 129.134.34 1285109 0 1578083 0 0 The -n option disables name lookup so the Network and Address fields appear as IP addresses.