RE: Changing MAC addresses of Quadruple port Ethernet cards

Dear Sir,

Thank you very, very much for your prompt response.
Yes, I tried 'ifconfig' on a single port NIC and it works. :-)
Do you know if there is any recent quad port Ethernet NICs (Tulip driver
based) which is field proven in having all of their ports' MAC addresses
changed with 'ifconfig'? It's virtually impossible to get suppliers to
loan hardware or even get any useful information from this part of this
world.:-(
And I really cannot afford the risk to buy cards only to find them not
being able to re-configure their MAC addresses.

Again, I am very grateful for your help.
Thank you.

Kind regards.
Ramesh 
KL, Malaysia

-----Original Message-----
From: Donald Becker [mailto:[email protected]] 
Sent: Thursday, November 13, 2003 1:09 PM
To: Ramesh Kumar
Cc: [email protected]
Subject: Re: [tulip] Changing MAC addresses of Quadruple port Ethernet
cards

On Thu, 13 Nov 2003, Ramesh Kumar wrote:

> Could someone please help me to identify if there are any
quadruple-port
> Ethernet cards (Tulip or non-Tulip chip based) out there which enable
> the individual port's MAC address to be changed to the user's desire?
> The card is required to run on Linux 2.4.-4.

Yes.  Not all quad port Tulip cards share a single configuration
EEPROM.

> I am developing an interface to emulate a control system controller
> which communicates using only Ethernet frames (embedded with
proprietary
> messaging protocol). The controllers -and the computers to which they
> talk to- all have very specific and unique MAC addresses and any other
> address will not do. The desired interface is to run on a Linux PC and
> need to emulate 8 controllers each with a specific MAC address.

Why not just use 'ifconfig' to set the station address on each boot?

-- 
Donald Becker				[email protected]
Scyld Computing Corporation		http://www.scyld.com
914 Bay Ridge Road, Suite 220		Scyld Beowulf cluster system
Annapolis MD 21403			410-990-9993



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