[olug] Networking and NIC issues. Coaching

[Don Kauffman]

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.
>
Not entirely sure what this means "Not on the same ethernet segment.",

>  
>
>Different interfaces having the same mac address can also be caused by
>interface aliases (ie eth0 eth0:1 eth0:2 etc).
>
I did the aliasing inadvertently one time but I've cleared that up It's 
not an aliasing  problem. (no  eth0:0 or eth0:1 etc)

>
>  
>
-- 
Don Kauffman
Email: mailto:dkauffman at tconl.com
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"There are 10 kinds of people in the world. Those who understand binary and those that don't."