Great Circle Associates Firewalls
(February 1996)
 

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Subject: Re: Performance on a Linux box [actually 3c509 ethercards]
From: Ron DuFresne <dufresne @ winternet . com>
Date: Mon, 19 Feb 1996 05:55:40 -0600 (CST)
To: Nigel Metheringham <Nigel . Metheringham @ ThePLAnet . net>
Cc: Firewalls @ GreatCircle . COM, sdp4198 @ is2 . nyu . edu
In-reply-to: <m0toSix-0007dRC @ dingo . theplanet . co . uk>
Posted-date: Mon, 19 Feb 1996 05:55:40 -0600

On Mon, 19 Feb 1996, Nigel Metheringham wrote:

> 
> firewalls-digest-owner @
 GreatCircle .
 COM said:
> } I have found that you CANNOT use a 3COM card in conjuction with 
> } another NIC!  I struggled with two 3COM 509 cards for an hour or so 
> } until I read the Multiple-Ethrnet MINI-HOWTO that specifically 
> } states "You cannot use 2 3Coms because they disable the probe after 
> } one card is found".  So stay away from 3COMs.  Now I'm using 2 
> } NE2000 clones and they're working fine. 
> 
> This just isn't the case.
> We have several machines with multiple 3com cards in them.
> You *do* need to configure them prior to use using the DOS 
> 3c5x9cfg.exe program which comes with them.
> 
> Set the interrupt, io address etc.  Switch off plug & pray, and set 
> the
> interface (AUI, BNC, 10BaseT) explicitly.
> They work wonderfully.
> 
> Strange things do happen if plug & pray is left enabled - maybe this 
> is your problem.

A few years back, when attaching PC's to a AIX tcp environ we had to pull 
some tricks centered around the hex id of the cards, last one in 
was the highest...

Later,

Ron DuFrsne
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation." -- Johnny Hart
	***testing, only testing, and damn good at it too!***

OK, so you're a Ph.D.  Just don't touch anything.



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