CentOS - Aug 2007 - Forcing ifcfg-eth0 to use the same nic in multi

On 15 August 2007, Les Mikesell <lesmikesell at gmail.com> wrote:
<snip>
> Everyone believed that except DECnet which expected all cards in the 
> same machine to have the same MAC.  The address should be stored in a 
> ROM and initialized at startup, so it is probably a firmware or driver
> bug.
Les: On multiport cards, do the NICs all have different MAC addresses
and do they all use the same driver? The OP has a board where the 2 NICs
use different drivers. Seems like DECnet did not have a better idea
there.

<snip>
> Yes, different block ranges are supposed to be assigned to different 
> companies.  But, it shouldn't hurt anything unless both are connected
> to the same subnet which you aren't likely to want.
> 
That *would* be a problem, with routing to the proper box. Lanny

Lanny Marcus wrote:
> On 15 August 2007, Les Mikesell <lesmikesell at gmail.com> wrote:
> <snip>
>> Everyone believed that except DECnet which expected all cards in the 
>> same machine to have the same MAC.  The address should be stored in a 
>> ROM and initialized at startup, so it is probably a firmware or driver
>> bug.
> 
> Les: On multiport cards, do the NICs all have different MAC addresses
> and do they all use the same driver? The OP has a board where the 2 NICs
> use different drivers. Seems like DECnet did not have a better idea
> there.
All NICs everywhere are supposed to have different MAC addresses.  And 
I've never seen different ones on the same board need different drivers 
before except for fancy servers that have a built-in management 
interface that might be a 10/100 NIC while the main ones are 10/100/1000.

-- 
   Les Mikesell
    lesmikesell at gmail.com