Mac address problem..?

how to change Mac address in ubuntu?

and does it affect the system if the Mac address belongs to other system somewhere in the earth, there may be conflict.Mac address problem..?
Actually you can temporarily change or spoof a MAC address. (if your drivers support it).



See: http://www.howtogeek.com/howto/ubuntu/ch



or



http://share-facts.blogspot.com/2009/02/Mac address problem..?
A computers MAC address cannot be changed. It is programmed into the computer system board.



Every computer in the world has a different MAC address. This applies to PCs and MAC equipment.



That is why programming a route to 'only accept' certain MAC addresses is pretty good.



Sarge