config interface loopback option ifname lo option proto static option ipaddr 127.0.0.1 option netmask 255.0.0.0 config interface eth option ifname eth0 config interface lan option ifname 'lan1 lan2 lan3 lan4' option type bridge option proto static option ipaddr 192.168.1.1 option netmask 255.255.255.0 config interface wan option ifname eth1 option proto dhcp