Could you not add eth0 first... then add eth1 after you finish configuring
the first NIC?  That way there'd be no confusion which was which.

Anthony

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of John Telford
> Sent: Tuesday, July 09, 2002 4:52 PM
> To: redhat-list
> Subject: which NIC is which
>
>
> I'm building routers.  It's difficult to tell in advance which NIC will
> be assigned eth0 and which will assigned eth1 when using two NICs.  Ping
> testing usually clears up this simple problem.
>
> The identification problem gets worse when adding a third NIC, after
> sorting out the first two NICs.  Frequently the eth0 or eth1 assignments
> for the first two NICs change.
>
> Of course adding a fourth and fifth NIC multiplies the identification
> problem.  Yes, some of my routers are supporting five network segments.
>
> My question is, what's the algorithm for assigning Ethernet
> designations?  I know it not placement order in the PCI bus, and I know
> its not the NIC data-link address.
>
> So what is it?
>
> Thanks ...John
> --
> John Telford - Owner
> JohnTelford.com LLC
> 503-292-6865 - fax:503-292-3094
> [EMAIL PROTECTED] - www.johntelford.com
>
>
>
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