I have configured virtual machine on ubuntu with the help of below article,

https://help.ubuntu.com/9.04/serverguide/C/libvirt.html

I managed to finish all the part except the major portion getting virtual host to talk to real network, Which I guess should be done only via bridge interface.

Via virtual machine manager I try to choose any interface it gives me interface not bridged

When I try to bridge the interceface eth0 as below

• auto br0
• iface br0 inet static
• address 192.168.0.223
• network 192.168.0.0
• netmask 255.255.255.0
• broadcast 192.168.0.255
• gateway 192.168.0.1
• bridge_ports eth0
• bridge_fd 9
• bridge_hello 2
• bridge_maxage 12
• bridge_stp off

I cannot communicate with this interface to network, host server looses all the communication to network. But when I remote bridge interface from /etc/network/interfaces And configure eth0 as below it works fine

The primary network interface

• auto eth0
• iface eth0 inet static
• address 192.168.0.223
• netmask 255.255.255.0
• network 192.168.0.0
• broadcast 192.168.0.255
• dns-nameservers 62.215.6.51
• gateway 192.168.0.1

how can i setup bridge interface correctly and how would my /etc/netwrok/interfaces file would look a like.