IfConfig.de

usage: ifconfig <interface> | -a[ 4 | 6 | D ][ u | d ][ Z ]
        [ <addr_family> ]
        [ <address>[/<prefix_length>] [ <dest_address> ] ]
        [ set [ <address>][/<prefix_length>] ] [ <address>/<prefix_length>] ]
        [ destination <dest_address> ]
        [ addif <address>[/<prefix_length>]  [ <dest_address> ] ]
        [ removeif <address>[/<prefix_length>] ]
        [ arp | -arp ]
        [ auto-revarp ]
        [ broadcast <broad_addr> ]
        [ index <if_index> ]
        [ metric <n> ] [ mtu <n> ]
        [ netmask <mask> ]
        [ plumb ] [ unplumb ]
        [ preferred | -preferred ]
        [ private | -private ]
        [ local | -local ]
        [ router | -router ]
        [ subnet <subnet_address>]
        [ trailers | -trailers ]
        [ token <address>/<prefix_length> ]
        [ tsrc <tunnel_src_address> ]
        [ tdst <tunnel_dest_address> ]
        [ auth_algs <tunnel_AH_authentication_algorithm> ]
        [ encr_algs <tunnel_ESP_encryption_algorithm> ]
        [ encr_auth_algs <tunnel_ESP_authentication_algorithm> ]
        [ up ] [ down ]
        [ xmit | -xmit ]
        [ modlist ]
        [ modinsert <module_name@position> ]
        [ modremove <module_name@position> ]
        [ group <groupname>] | [ group ""]
        [ deprecated | -deprecated ]
        [ standby | -standby ]
        [ failover | -failover ]
        [ zone <zonename> | -zone ]
        [ usesrc <interface> ]
        [ all-zones ]
or
        ifconfig <interface> |  -a[ 4 | 6 | D ] [ u | d ]
        auto-dhcp | dhcp
        [ wait <time> | forever ]
        [ primary ]
        start | drop | ping | release | status | inform