Configure the KVM server to enable the VM to communicate with other hosts on the LAN

Configure the KVM server to enable the VM to communicate with other hosts on the LAN

Initial Exploration of KVM Virtualization

Environment
Operating System: CentOS 6.7 64-bit graphical interface

Configuration
KVM virtualization requires support from Intel VT or AMD-V technology. You can use the following command to determine whether the local CPU supports the above two Virtualization Technologies:

Egrep '(vmx | svm)'/proc/cpuinfo
If the CPU supports virtualization technology, you should enable the virtualization function of the CPU in the BIOS before deploying virtualization.
Install related virtualization components:

Yum-y groupinstall "Virtualization" "Virtualization Client" "Virtualization Platform" "Virtualization Tools"
Start and enable the libmongod service to automatically start with startup:

Service libmongod start
Chkconfig libmongod on

Start the graphic management interface:

Virt-manager

Configuration
Vi/etc/sysconfig/network-scripts/ifcfg-br0
DEVICE = "br0"
TYPE = "Bridge"
ONBOOT = "yes"
NM_CONTROLLED = "no"
BOOTPROTO = "static"
IPADDR = "192.168.1.2" # modify this option based on your actual situation.
NETMASK = "255.255.255.0" # modify this option based on your actual situation.
GATEWAY = "192.168.1.1" # modify this option based on your actual situation.

Vi/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE = "eth0"
TYPE = "Ethernet"
HWADDR = "10: BF: 48: 4C: 4A: 62" # modify this option based on your actual situation.
NM_CONTROLLED = "no"
ONBOOT = "yes"
BRIDGE = "br0"

# Enable route forwarding.
Sed-I '/^ net \. ipv4 \. ip_forward/s/=. */= 1/'/etc/sysctl. conf
Echo 1>/proc/sys/net/ipv4/ip_forward

# Restart the system after modification.
Init 6
When creating a VM, select br0 as the network type:

If you have already created a virtual machine, you can modify it as shown in:

After setting, you can configure the Virtual Machine Nic to the same IP address as the physical machine.

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