root@LEDE:/etc/config# cat network

config interface 'loopback'
        option ifname 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option ula_prefix 'fd99:092f:3a6d::/48'

config interface 'lan'
        option type 'bridge'
        option ifname 'eth0.1'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config device 'lan_dev'
        option name 'eth0.1'
        option macaddr 'b2:d4:6e:c4:f3:e9'

config interface 'wan'
        option ifname 'eth0.2'
        option proto 'dhcp'

config device 'wan_dev'
        option name 'eth0.2'
        option macaddr 'b2:d4:6e:c4:f3:ea'

config interface 'wan6'
        option ifname 'eth0.2'
        option proto 'dhcpv6'

config switch
        option name 'rt305x'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'rt305x'
        option vlan '1'
        option ports '0 1 2 3 5 6t'

config switch_vlan
        option device 'rt305x'
        option vlan '2'
        option ports '4 6t'

config interface 'wwan'
        option proto 'dhcp'

config interface 'repeater_bridge'
        option proto 'relay'
        list network 'lan'
        list network 'wwan'