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 globals 'globals'
        option ula_prefix 'fd43:45c3:9f9f::/48'

config interface 'lan'
        option type 'bridge'
        option proto 'static'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option ipaddr '192.0.2.1'
        option ifname 'eth3 tap_tap'

config interface 'wan'
        option ifname 'eth0'
        option proto 'pppoe'
        option username '[redacted]'
        option password '[redacted]'
        option ipv6 'auto'

config interface 'wan6'
        option proto 'dhcpv6'
        option ifname 'eth0'
        option reqaddress 'try'
        option reqprefix 'auto'
        option auto '0'

config interface 'NJUCM_Lan'
        option proto 'dhcp'
        option ifname 'eth1'
        option defaultroute '0'

config interface 'lab_lan'
        option proto 'dhcp'
        option ifname 'eth2'
        option defaultroute '0'

config route
        option interface 'lab_lan'
        option target '192.168.123.0'
        option netmask '255.255.255.0'

config route
        option interface 'NJUCM_Lan'
        option target '10.0.0.0'
        option netmask '255.0.0.0'

config route
        option interface 'NJUCM_Lan'
        option target '172.0.0.0'
        option netmask '255.0.0.0'