auto lo
auto eth1
iface eth1 inet manual
iface eth3 inet dhcp
iface eth0 inet dhcp
iface eth2 inet dhcp
auto br0
iface br0 inet dhcp
bridge_ports eth1
bridge_stp off
bridge_fd 0
bridge_maxwait 0
brctl show
bridge name bridge id STP enabled interfaces
br0 *************** no eth1
vnet0
virbr0 *************** yes
VM Network interface settings:
<interface type='bridge'>
<mac address='*********'/>
<source bridge='br0'/>
<target dev='vnet0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>