On Fri, 12 Nov 2010 16:51:58 +0100 "Stefan G. Weichinger" <li...@xunil.at> wrote: > Maybe stupid question: > > How to find out which physical NIC is for example eth0 ? > > If I have 2 NICs in the box, for example one e1000 and one from 3com, > how to find out which one is eth0 ? > > I looked up /etc/udev/rules.d/70-persistent-net.rules where the MAC is > determining the devicefile ... > > Is there another way? on non-udev-systems? > Just curious!
mii-tool -w eth0 then plug in/out a cable from every interface in sequence until you see the above command detecting a link state change; that will be eth0. Repeat with the other interfaces. Also look at ethtool -p (details in the man page).