Configure the bridging network in the kvm virtual machine of CentOS6

In the CentOS6 system kvm virtual machine, we first disable and uninstall the NetworkManager tool to enable the built-in network service chkconfigNetworkManageroffchkconfignetworkonserviceNetworkManagerstopyumeraseNetworkManager and then install the hypervisor through the software, install virt-m CentOS 6 system kvm virtual machine to configure bridging network
First, disable and uninstall the NetworkManager tool to enable the built-in network service.
Chkconfig NetworkManager off
Chkconfig network on
Service NetworkManager stop
Yum erase NetworkManager

Next, install software packages such as virt-manager and qemu-kvm through the software installation management program.
Rpm-qa | grep qemu
Start libmongod,
Service libmongod start

After the installation is complete, we start to configure network parameters.

First, disable the default network configuration virbr0 that comes with kvm.
Virsh net-list # view the default kvm network configuration
Delete default network configurations of kvm
Virsh net-destroy default
Virsh net-undefine default
Service libmongod restart

View network configuration ifconfig
Next we will configure the bridge network
Go to the/etc/sysconfig/network-scripts directory
Cd/etc/sysconfig/network-scripts

Edit ifcfg-eth0 vim ifcfg-eth0
DEVICE = eth0
ONBOOT = yes
BRIDGE = br0
Save and exit

Edit ifcft-br0 vim ifcfg-br0
DEVICE = br0
ONBOOT = yes
TYPE = Bridge
BOOTPROTO = static
IPADDR = 192.168.1.22
NETMASK = 255.255.255.0
GATEWAY = 192.168.1.1
DELAY = 0
Save and exit

After the network service is restarted, the service network restart takes effect.