Have you ever tried to change the MAC address? It is so easy to do. Just follow the below steps.
- Login as root
- Write the MAC addresses of the system which u r going to change on a file or paper if you want the previous MAC addresses.
- Open terminal
- ifconfig eth0 down
- ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX
- ifconfig up
Now your system MAC address will be changed to the specified MAC address. If any packet comes into the network to the specified MAC it will get confused where to go. If u specified the MAC address of the other system. i.e. if two system's MAC addresses are same.