Re: [Sheflug] Eth0 and Eth1 - which is which?

[Alex Hudson <xxxxx [at] xxxxxxxxxxxxxx>]

On Monday 24 September 2001 10:17, you wrote:
> Hi guys. Just a quickie question before i *finally* get cable and out it
> into my other machine, ummm... if i have two identical network cards in the
> same computers, which is the Eth0 and which is Eth1?!?

The first one it detects is eth0. The second eth1. Roughly.

Physical correlation: none :( Sometimes, though, they are detected in order 
of PCI slot I think.

The way to detect which is which varies from card to card. The easiest method 
is to use a laptop and cross-over, or something. Bring up both interfaces 
(with different IPs), plug the laptop directly into one NIC and see which 
interface you can ping (making sure it's not forwarding packets though!!)

Usually a good idea to label the interfaces upon discovery.

Cheers,

Alex.

(who has exactly the same problem with serial ports sometime too! 'cept there 
are rules there - I just can't always remember them! ;)
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