[SunHELP] MACs and Servers with more than one network card on same network!

Fri Apr 6 18:44:31 CDT 2001

--------------EBFDEC3EF80746518C216868
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

"Foong, Tzeweng" wrote:

> Hi All,
>
> I have been told that the MAC address on network cards are the same
> for sun sparc machines !!  They somehow (How?) get their MAC address
> synchronised (provided by) on the motherboard.
>
> Therefore how would it be posible to have 2 network cards on the same
> network??
>
> I understand that the MAC address can somehow (How? anyone know?)
> be changed to another address so that the 2 network cards can be
> put on the same network. Also what would you change the Mac
> address to? I thought that these addresses are in some fixed sequence
> so that any 2 cards would not have the same MAC. But some how Sparc
> architecture makes any network cards on the same machine the same.!!
>
> Please explain...
>
> Thanks in advance!!
>
> Tze Weng Foong
> _______________________________________________
> SunHELP maillist  -  SunHELP at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sunhelpNo I thing

No, I think you are wrong. MAC addresses are not same for two different
SUN BOXes.
But If you plug a quad card or another NIC to sun box, you have to set
the prom variable "local-mac address ".

/Gayantha

--------------EBFDEC3EF80746518C216868
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
"Foong, Tzeweng" wrote:
<blockquote TYPE=CITE>Hi All,
I have been told that the MAC address on network cards are the same
 for sun sparc machines !!  They somehow (How?) get their MAC address
 synchronised (provided by) on the motherboard.
Therefore how would it be posible to have 2 network cards on the same
 network??
I understand that the MAC address can somehow (How? anyone know?)
 be changed to another address so that the 2 network cards can be
 put on the same network. Also what would you change the Mac
 address to? I thought that these addresses are in some fixed sequence
 so that any 2 cards would not have the same MAC. But some how Sparc
 architecture makes any network cards on the same machine the same.!!
Please explain...
Thanks in advance!!
Tze Weng Foong
 _______________________________________________
 SunHELP maillist  -  SunHELP at sunhelp.org
 <a href="http://www.sunhelp.org/mailman/listinfo/sunhelp">http://www.sunhelp.org/mailman/listinfo/sunhelpNo
I thing</a></blockquote>
No, I think you are wrong. MAC addresses are not same for two different
SUN BOXes.
 But If you plug a quad card or another NIC to sun box, you have to
set the prom variable "local-mac address ".
/Gayantha
  
  </html>

--------------EBFDEC3EF80746518C216868--