>> when i try a ifconfig le0 --> its the onboard nic
>> and ifconfig le1           --> its like the mac
>> adress from onboard nic
> 
> It's normal because on Sparc system, all networks
> card may have the same MAC address. Something can be
> configured in the OpenBoot if you realy need 2
> differents MAC address, for example, if your card
> are plugged on the same networks.
> 

I think it's:

setenv local-mac-address? true

Refer to:
http://www.sun.com/products-n-solutions/hardware/docs/pdf/806-2906-10.pdf
http://docs.sun.com/db/doc/806-2906-10?a=load
http://docs.sun.com/db/doc/806-1377-10

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