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1. sudo apt-get install bridge-utils
2. brctl --help
Usage: brctl [commands]
commands:
addbr <bridge> add bridge
delbr <bridge> delete bridge
addif <bridge> <device> add interface to bridge
delif <bridge> <device> delete interface from bridge
hairpin <bridge> <port> {on|off} turn hairpin on/off
setageing <bridge> <time> set ageing time
setbridgeprio <bridge> <prio> set bridge priority
setfd <bridge> <time> set bridge forward delay
sethello <bridge> <time> set hello time
setmaxage <bridge> <time> set max message age
setpathcost <bridge> <port> <cost> set path cost
setportprio <bridge> <port> <prio> set port priority
show [ <bridge> ] show a list of bridges
showmacs <bridge> show a list of mac addrs
showstp <bridge> show bridge stp info
stp <bridge> {on|off} turn stp on/off
3. 创建网桥
brctl addbr newbr
4. 将物理网卡1划入网桥
bectl addif newbr eth1
5. 取消物理网卡1的IP信息
ifconfig eth1 0.0.0.0
6. 分配IP地址给网桥
ifconfig newbr 3.242.164.147
Linux网桥设置
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原文地址：http://www.cnblogs.com/IvanChen/p/4491950.html
