Create a shared network interface for KVM

KVM Virtual machines uses its own virtual network as the default network. If you want to access your virtual machine inside your LAN, you need to change your virtual network interface to shared network interface.

How to create shared interface ??

Configure your physical interface as a bridge in your machine (not in virtual machine). Then you can create a new network interface for you virtual machine with source interface as bridge

Here in my machine I have one interface eth0. I changed my physical interface to a bridge interface so that any of my virtual machine can share my physical interface for networking

edit your network configuration

 # vi /etc/network/interfaces

Change your configuration to make your interface eth0 as a bridge

auto eth0

iface eth0 inet manual

auto bro

iface br0 inet static

         address 192.168.1.10

         netmask 255.255.255.0

         gateway 192.168.1.1

         bridge-ports eth0

         bridge-stp on

         bridge-maxwait 0

This will create a bridge interface br0