How could I create the tun0 interface in Ubuntu so that qemu could use it? I added a file "/etc/moutils/tun" with the following line: alias tun0 ethertap I added a line "ethertap" to /etc/modules. after booting, `ifconfig tun0 10.0.2.2 netmask 255.255.255.0` erred with the message "device not found". -- http://changmw.homeip.net