I can't bring eth0 down or up with ifdown or ifup
ifdown: interface eth0 not configured
but ifconfig shows me
eth0 Link encap:Ethernet HWaddr 00:16:3e:4d:09:5f
inet addr:192.168.0.3 Bcast:192.168.0.255 Mask:255.255.255.0
It's a xen guest i just setup, in another guest it does work, how can i overcome this?