linux网桥

真实网卡配置文件

/etc/sysconfig/network-scripts/ifcfg-eth0

虚拟网卡配置文件

/etc/sysconfig/network-scipts/ifcfg-eth0:0

TYPE=Ethernet
BOOTPROTO=static
NAME=eth0:0
DEVICE=eth0:0
ONBOOT=yes
IPADDR=

网桥

[root@docker01 ~]# yum -y install bridge-utils
[root@docker01 ~]# cd /etc/sysconfig/network-scripts/
[root@docker01 network-scripts]# cp ifcfg-eth0 ifcfg-docker0
[root@docker01 network-scripts]# vim ifcfg-docker0 
DEVICE="docker0"
ONBOOT="yes"
IPV6INIT="no"
IPV4_FAILURE_FATAL="no"
NM_CONTROLLED="no"
TYPE="Bridge"
BOOTPROTO="static"
IPADDR="192.168.1.21"

[root@docker01 network-scripts]# docker network list
NETWORK ID          NAME                DRIVER              SCOPE
8e868f9c8f66        bridge              bridge              local               
b19e0b0eb904        host                host                local               
c8732042ae83        none                null                local 

[root@docker01 network-scripts]# brctl show
bridge name    bridge id        STP enabled    interfaces
docker0        8000.024241d392f5    no    

使用docker创建网桥   （docker network create --driver bridge docker1)

[root@docker01 ~]# docker network create --subnet=10.10.10.0/24 docker1
[root@docker01 ~]# docker run -it --network=docker1 myos        # 使用虚拟交换机