/etc/config/network

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	192.168.2.254
	option netmask	255.255.255.0
 
config interface wan
	option ifname	wan
	option proto	dhcp