/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 'lan'
	option ifname 'eth0'
	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'
	option hostname 'OpenWRT'

config switch
	option name 'eth0'
	option reset '1'
	option enable_vlan '1'

config switch_vlan
	option device 'eth0'
	option vlan '1'
	option ports '0 1 2 3 4'

config interface 'guest'
	option _orig_ifname 'radio0.network2'
	option _orig_bridge 'false'
	option proto 'static'
	option ipaddr '192.168.3.1'
	option netmask '255.255.255.0'