config

root@OpenWrt:~# cat /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 switch
        option name 'eth0'
        option reset '1'
        option enable_vlan '1'

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

config interface 'wan'
        option ifname 'nas0'
        option proto 'pppoe'
        option username 'xxxxxxx@h1dsl-flat'
        option password 'xxxxxxx'

config interface 'iptv'
        option type 'bridge'
        option proto 'none'
        option ifname 'eth0.2 nas1'
        option auto '1'

config adsl-device 'adsl'
        option fwannex 'b'
        option annex 'b2p'

config switch_vlan
        option device 'eth0'
        option vlan '1'
        option ports '2 3 4 5t'
        option vid '1'

config switch_vlan
        option device 'eth0'
        option vlan '200'
        option vid '2'
        option ports '1 5t'

config atm-bridge 'atm'
        option unit '0'
        option encaps 'llc'
        option payload 'bridged'
        option vci '33'
        option vpi '0'

config atm-bridge
        option unit '1'
        option atmdev '0'
        option encaps 'llc'
        option payload 'bridged'
        option vci '40'
        option vpi '0'