Linux in a Nutshell, 6th Edition

Xen Networking

Mixing libvirt and Xm tools can lead to some confusion when it comes to networking. Guest domains installed using Xen’s tools bridge to device xenbr0 by default. Those installed by libvirt’s virt-install bridge to device virbr0. To cut down on confusion and take full advantage of libvirt, you may want to disable Xen’s bridge networking altogether. Details on how to configure networking for Xen using libvirt can be found on the libvirt wiki: http://wiki.libvirt.org/page/Networking. Altertnatively you can tell virt-install to bridge to device xenbr0 using the -w option (-w bridge:xenbr0).