Hi, I use kvm and libvirt for running windows on a fedora-core9. Problem: I defined a interface script which should run, if the KVM/qemu starts, but libvirt does not tell kvm to use the script: Part of my domain.xml: <interface type="bridge"> <source bridge="br-guest"/> <script path='bridge-kvm.sh'/> <model type='e1000'/> </interface> Part of the logfile of qemu in /var/log/libvirt/qemu LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin / /usr/bin/qemu-kvm \ -S -M pc -m 250 -smp 1 -name winxp100 -monitor pty -boot c \ -drive file=/tmp/winxp100,if=ide,index=0,boot=on \ -net nic,macaddr=52:54:00:79:d5:c9,vlan=0,model=e1000 \ -net tap,fd=14,script=,vlan=0,ifname=vnet0 \ -serial pty -parallel none -usb -usbdevice tablet -vnc 0.0.0.0:0 There, you can see the empty script directive "...,script=,...." root@kvm ~]$ rpm -qa | grep libvirt libvirt-0.5.1-2.fc9.x86_64 How can I fix this problem ? regards Danny