Dagmawi Biru writes: I have a DHCP server running on my LAN that defines a static mapping for my client VMs. If you already have a DHCP server on my LAN, and you have your client VMs correctly bridged, and your DHCP server sees them, then it's a simple matter of configuring your DHCP server. Looking at my domain XML configuration, what I have is: <interface type='bridge'> <mac address='52:54:00:1d:a4:c2'/> <source bridge='vnet0'/> <model type='rtl8139'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> Then, I just assign a static IP address mapping for this MAC address, on my LAN's DHCP server. If you don't have a DHCP server, you simply have to have your client VM configured, in the client, with a fixed IP address. The client VM sees a network port, and it is up to the client VM to set it up. libvirt is out of the picture here.