开发板的网络配置文件是"/etc/network/interfaces"，可以修改此文件来配置网络设备。例如，默认文件内容如下：
auto lo iface lo inet loopback iface ppp0 inet ppp # provider gprs-dial # provider 3g-dial provider quectel-dial # provider ppp-dial auto eth0 iface eth0 inet dhcp udhcpc_opts -t 1 -S auto eth1 iface eth1 inet dhcp udhcpc_opts -t 1 -S ## Example bridge between eth0 and wlan0 #auto br0 #iface br0 inet static # bridge_ports eth0 wlan0 # address 192.168.42.50 # netmask 255.255.255.0
配置静态IP地址
上面的配置文件中eth0和eth1默认配置为DHCP模式，如果要配置eth0为静态地址，可以修改为如下：
注意配置项前要保留tab位置。
auto eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 gateway 192.168.1.1 udhcpc_opts -t 1 -S
添加DNS地址
为eth0设备配置静态DNS地址，修改如下;
auto eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 gateway 192.168.1.1 udhcpc_opts -t 1 -S dns-nameserver 8.8.8.8 dns-nameserver 8.8.4.4
无线和有线桥接
当使用WiFi无线网络时，需要与eth0桥接
iface br0 inet dhcp bridge_ports eth0 wlan0 pre-up ifconfig eth0 0.0.0.0 up pre-up ifconfig wlan0 0.0.0.0 up pre-up iwconfig wlan0 mode master pre-up brctl addbr br0 pre-up brctl addif eth0 pre-up brctl addif wlan0 post-down ifconfig eth0 0.0.0.0 down post-down ifconfig wlan0 0.0.0.0 down post-down brctl delif br0 eth0 post-down brctl delif br0 wlan0 post-down brctl delbr br0