[olug] Networking and NIC issues. Coaching

[Jesse Regier]

I have seen hardware addresses listed in
/etc/sysconfig/network-scripts/ifcfg-eth0:x  But only on virtual
interfaces.  I don't know about other distributions but Redhat uses this
file when setting up network cards.  Perhaps you have a line like
HWADDR='aa:bb:cc:dd:ee:ff' in your that file leftover a virtual
interface.


On Fri, 2003-01-10 at 16:21, Phil Brutsche wrote:
> A long time ago, in a galaxy far, far way, someone said...
> 
> > When I do ifconfig -a the odd thing is that it brings up all the
> > networking devices but two of them have the same MAC address.  I am
> > CONFUSED BY THIS! (Shouting Intentional but not directed at anyone ;-) )
> > . I'm hoping someone will be able to coach me through a troubleshooting
> >  and repair.
> 
> Having two ethernet ports with the same MAC address is something I would
> expect to see on a Sun, not on a PC.
> 
> As long as the two ports aren't on the same ethernet segment there
> probably won't be a problem.
> 
> Different interfaces having the same mac address can also be caused by
> interface aliases (ie eth0 eth0:1 eth0:2 etc).
-- 
Jesse Regier <jregier at cox.net>