1.echo "1" > /proc/sys/net/ipv4/ip_forward
2.ifconfig eth0 0.0.0.0 up
3.ifconfig eth0 0.0.0.0 up
4.brctl addbr br0 //添加一個網橋
5.brctl addif br0 eth0
brctl addif br0 eth0
//將eth0和eth1添加到網橋中去
6.ifconfig br0 192.168.221.111 netmask 255.255.255.0 broadcast 192.168.221.255 up
//給網橋設置ip,如果不需要遠程控制網橋的話,就只做ifconfig br0 up操作
7.添加默認路由route add default gw 192.168.221.1
8. iptables -F
9. iptables -P FORWARD ACCEPT