CentOS 7网卡网桥设置
centos下设置网桥1、设置网卡
vi /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
TYPE=Bridge
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.0.0.10
NETMASK=255.255.255.0
GATEWAY=10.0.0.254
DNS1=8.8.8.8
IPV6INIT=no
USERCTL=novi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=BC:30:5B:CB:30:3F
TYPE=Ethernet
UUID=e513c376-2c85-45a7-92ba-d14ca2225e69
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=no
#IPADDR=10.0.0.10
#NETMASK=255.255.255.0
#GATEWAY=10.0.0.254
#DNS1=192.168.1.250
#DNS2=192.168.1.251
#IPV6INIT=no
USERCTL=no
BRIDGE=br0 此步也可以这样设置网桥br0:
[*] # brctl addbr br0
[*] # ip addr add 10.0.0.10/24 dev br0
[*] # ip link set dev br0 up
2、关闭 NetworkManager
chkconfig NetworkManager off
service NetworkManager stop
3、重启网络
service network restart 4、查看网桥
# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.0050562539b9 no ens33 命令：brctl
brctl --help
Usage: brctl
commands:
addbr add bridge
delbr delete bridge
addif add interface to bridge
delif delete interface from bridge
setageing set ageing time
setbridgeprio set bridge priority
setfd set bridge forward delay
sethello set hello time
setmaxage set max message age
sethashel set hash elasticity
sethashmax set hash max
setmclmc set multicast last member count
setmcrouter set multicast router
setmcsnoop set multicast snooping
setmcsqc set multicast startup query count
setmclmi set multicast last member interval
setmcmi set multicast membership interval
setmcqpi set multicast querier interval
setmcqi set multicast query interval
setmcqri set multicast query response interval
setmcqri set multicast startup query interval
setpathcost set path cost
setportprio set port priority
setportmcrouter set port multicast router
show [ ] show a list of bridges
showmacs show a list of mac addrs
showstp show bridge stp info
stp {on|off} turn stp on/off
常用：
1.创建网桥设备：brctl addbr ，eg：brctl addbrbr0
2.向网桥设备添加物理网卡：brctl addif ，eg：brctladdifbr0 eth0
3.从网桥中删除网卡：brctl delif ，eg：brctldelifbr0 eth0
4.删除网桥：brctl delbr ，eg：brctl delbr br0
5.查看网桥配置情况：brctl show
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