config switch_vlan
        option device 'switch0'
        option vlan '1'
        option ports '0 1 2 4 6t'

config switch_vlan
        option device 'switch0'
        option vlan '2'
        option ports '5 6t'

config interface 'wan'
        option ifname 'eth0.2'
        option _orig_ifname 'nas0'
        option _orig_bridge 'false'
        option proto 'dhcp'
        option type 'bridge'