CentOS:
1、配置臨時網橋，重啟後風格配置丟失
[root@CentOS ~]# yum -y install bridge-utils
[root@CentOS ~]# brctl addbr br0 #創建網橋邏輯接口
[root@CentOS ~]# brctl addif br0 eth0 #將eth0網卡添加到網橋中
[root@CentOS ~]# brctl addif br0 eth1 #將eth1網卡添加到網橋中
[root@CentOS ~]# ifconfig eth0 0.0.0.0 #將eth0網卡設為為混雜模式
[root@CentOS ~]# ifconfig eth1 0.0.0.0 #將eth1網卡設為為混雜模式
[root@CentOS ~]# ifconfig br0 #查看橋網卡配置
[root@CentOS ~]# ifconfig br0 10.10.10.82/24 #給橋網卡設置IP地址

2、創建永久網橋
[root@CentOS ~]# vi /etc/sysconfig/network-scripts/ifcfg-br0 #創建網橋配置文件
DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
IPADDR=172.16.100.1
NETMASK=255.255.255.0
ONBOOT=yes
[root@CentOS ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0 #將網卡加入到網橋中
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=static
IPADDR=0.0.0.0
BRIDGE=br0
[root@CentOS ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth1 #將網卡加入到網橋中
DEVICE=eth1
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=static
IPADDR=0.0.0.0
BRIDGE=br0

Debian：
1、配置臨時網橋
root@debian:~# apt-get install bridge-utils #安裝依賴包
root@debian:~# brctl addbr br0 #創建網橋
root@debian:~# ifconfig br0 up #啟用網橋
root@debian:~# ip addr show #查看網橋
root@debian:~# brctl addif br0 eth0 eth1 #將網卡加入到網橋
root@debian:~# brctl delif br0 eth1 #從網橋中刪除eth1網卡
root@debian:~# ifconfig br0 down #關閉網橋
root@debian:~# brctl delbr br0 #刪除網橋

2、創建永久網橋
root@debian:~# nano /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
# auto lo br0 兩行寫成一行
auto lo
auto br0
iface lo inet loopback
iface br0 inet static
iface eth0 inet manual
iface eth1 inet manual
address 10.1.1.122
broadcast 10.1.1.255
netmask 255.255.255.0
gateway 10.1.1.1
bridge_ports eth0 eth1 #把eth0,eth1加入到網橋
bridge_stp off # disable Spanning Tree Protocol
bridge_waitport 0 # no delay before a port becomes available
bridge_fd 0 # no forwarding delay

Linux網橋配置