Management and construction of Linux Bridge

In a Linux network, when a physical device attached to another physical device to communicate, our most common virtual machine, and so on, he relies on the real host's network card to communicate, so we mentioned a bridge to change the concept, just can solve this kind of problem

Configuration of the Network Bridge

1:

<1> virtual interface on a real network card

[Email protected] desktop]# VIM/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ENP0S25 device=enp0s25bootproto=noneonboot= YESNAME=ENP0S25BRIDGE=BR0 # #虚拟出一个接口

<2> Configuring Br0 Bridges

[Email protected] desktop]# Vim/etc/sysconfig/network-scripts/ifcfg-br0device=br0onboot=yesbootproto=noneipaddr0 =172.25.254.20prefix0=24type=bridge # #类型为网桥

2: Manage bridge interfaces in a command way
<1> Add br0 NIC

Brctl ADDBR Br0

<2> Add IP

Ifconfig br0 172.25.254.120 netmask 255.255.255.0

<3> Adding a bridging interface to the BR0

Brctl addif br0 eth0

<4> Testing

Ping 172.25.254.x # #ping同一网段任意ip

<5> Delete a network bridge

Ifconfig dr0 down # #停用br0brctl delif de0 eth0 # #删除eth0桥接接口brctl DELBR br0 # #删除网桥

<6> Monitor Brctl Show # #查看网桥

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Management and construction of Linux Bridge