1.安装brctl-utils
# apt-get install bridge-utils //安装配置brctl命令包
2.配置网卡桥接模式
# brctl addbr br-test
# brctl addif br-test eth1
# brctl addif br-test eth2
# ifconfig eth1 up
# Ifconfig eth2 up
配置完毕：brctl show
ubuntu@ubuntu:~$ brctl show
bridge name bridge id STP enabled interfaces
br-test 8000.524b151222cd no eth1 eth2
3.重启网络
sudo /etc/init.d/networking restart