Kvm虚拟机的网络配置

Posted 2020-11-13 zhangkaipc

1.查看网卡信息

ifconfig

2.在docker的centos7命令行中进行eth0设置

设置eth0网卡:vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
NAME="eth0"
BRIDGE=br0
BOOTPROTO=dhcp
NM_CONTROLLED=no
ONBOOT=yes
TYPE=Ethernet
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
USERCTL=no

3.新建网桥br0的配置（ip自定义的,不必纠结.网关是docker的网关）

设置br0网桥:vi /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE="br0"
TYPE="Bridge"
NOBOOT="yes"
BOOTPROTO="static"
IPADDR="172.17.0.1"
NETMASK="255.255.255.0"
GATEWAY="172.17.42.1"
DNS1="202.106.46.151"
DNS2="202.106.195.68"
DELAY="0"　

4.在宿主机上重启容器，使网桥配置生效

docker restart centos-vnc

5.重新进入容器

docer exec -it centos-vnc /bin/bash

6.查看网络

ifconfig

 

 7.网桥br0添加eth0端口

brctl show
brctl addif br0 eth0
ifconfig eth0 0.0.0.0

8.Ping网络是否畅通

ping www.baidu.com