How to know the name of an ethernet interface.

[Juan Lavieri <jlavieri@cantv.net>]

Hi.

The past weekend I did change my motherboard.  The new one has the 
ethernet interface integrated into it (no other card of this type is 
plugged)

My surprise is is because my squeeze was unable to bring uo this 
interface (eth0 didn't exists);  Guessin I change it to eth2 and 
everything works.

My questio is:  How can I know what name is asigned to a such a card?  
Is there any command?  I'm looking on google and everybody sais etho is 
the first, eth1 the second and so on.   I have only one and it's eth2, why?

Thanks for your help.


Regards.


Juan