[ILUG] 2x Network Cards

[Gavin McCullagh]

Hi again,

	that first problem has now been solved.  It seems the old Ultra
machine had some problem or other (dodgy BIOS?? I dunno), we moved the two
cards to another machine and they work fine now.  Thanks to all for the
help on that one.

NEXT PROBLEM:
	We hooked up the two network cards and got them working
successfully.  Great.  Now, the plan is to set up a loop of BNC cable
going around the room pulling four machines onto a subnet with the
gateway box.

	We can hook either eth? device to the main network and it is
possible to ping various outside world machines.  It is also possible to
use the other machines directly on the network.  However, the BNC loop
will not allow the two to see each other.  Also the eth? devices can ping
themselves.  My assumption  that the story is this simple (ie only a loop
required) may perhaps show enormous naiivety and apologies if so.

Points of note:

1) the light on the subnet network card only lights on issuing a ping or
some such from that box (the main network NIC is always flashing, but
it's a very busy network, hence us trying to get off it).

2) a mate told me that some new NICs will not do this simple peer-to-peer
networking and require some other hardware to be present.  Has anyone
heard of this?  Is there a list of such cards in existence?  What other
hardware is required??

Thanks again

Gavin


> I have set up a few machines running two IBM token ring cards and never had
> any problems.
> Just set up the network details and hey-presto, it works.
> One thing to check is that in the /etc/conf.modules make sure you have an
> alias to the proper device driver for your cards.
> 
> Mise Le Meas/Kind Regards/Mit Freundlichen Gruessen
> 
> Nick Elliott,
> Disk Test Engineering,
> Storage Systems Division,
> IBM International Holdings
> E-mail: Nick_Elliott at ie.ibm.com
> Tel: +353-1-8153031
> 
> 
> Paul Trainor <paul.trainor at bayridge.ie> on 22/11/2000 16:36:23
> 
> Please respond to Paul Trainor <paul.trainor at bayridge.ie>
> 
> To:   "'Gavin McCullagh'" <gavinmcc at netsoc.ucd.ie>, ilug at linux.ie
> cc:
> Subject:  RE: [ILUG] 2x Network Cards
> 
> 
> 
> 
> I have set up servers no problem in the past with 2 network cards using
> redhat Linux, but I was using either Intel cards or 3coms. However I seem
> to
> remember something about some cards, where if you had more than one of them
> you had to specify the MAC address for each card somewhere, I can't for the
> life of me remember where, but I hope this helps point you in the right
> direction.
> 
> Paul Trainor
> www.bayridge.ie
> 
> -----Original Message-----
> From: Gavin McCullagh [mailto:gavinmcc at netsoc.ucd.ie]
> Sent: 22 November 2000 12:36
> To: ilug at linux.ie
> Subject: [ILUG] 2x Network Cards
> 
> 
>