Show Table of Contents
11.3. Bridged Networking with libvirt
Bridged networking (also known as physical device sharing) is used to dedicate a physical device to a virtual machine. Bridging is often used for more advanced setups and on servers with multiple network interfaces.
To create a bridge (
br0) based on the eth0 interface, execute the following command on the host:
# virsh iface-bridge eth0 br0
Important
NetworkManager does not support bridging. NetworkManager must be disabled to use networking with the network scripts (located in the
/etc/sysconfig/network-scripts/ directory).
# chkconfig NetworkManager off # chkconfig network on # service NetworkManager stop # service network start
If you do not want to disable NetworkManager entirely, add "
NM_CONTROLLED=no" to the ifcfg-* network script being used for the bridge.
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.