(In reply to James Fehlig from comment #1) > I'm confused about the relationship between libvirt, qemu, kvm, and > virtualbox in your setup. Is your machine a virtualbox "host" and you are > trying to use libvirt to manage virtualbox VMs? Or are you running > libvirt+qemu inside a virtualbox VM? Or is your machine a kvm "host" and you > are trying to use libvirt to manage a kvm VM running virtualbox? Or > something else? Not, i was talking about neither libvirt using virt-manager and virtualbox can use the bridge function, but the last update fix all that problem