Is it possible to change mac address of the ethernet card? If yes then How can I do it?
I've implemented MAC address changes in a MAC filtered environment before.
Under Linux/Unix, as root you can issue the following, to change your MAC to all zeros.
Code:
ifconfig eth0 down
ifconfig eth0 hw ether 00:00:00:00:00:00
ifconfig eth0 up
It's important to note that this isn't truly
changing your MAC, it's only masking it under the current firmware. Once the machine boots, or reboots, it's always going to be set to the firmware of the NIC. The above simply changes it within the OS.
Changing the MAC address of the new interface will solve the problem. Similarly, some software licenses are apprenticed to a specific MAC address. Changing the MAC address in this way is not permanent: after a reboot, it will revert to the MAC address physically stored in the card.
Even though it's not permanent, you can always put those commands on a small script and run it automatically on system start-up.
Remember you can't just put in any mac addy.
Use this
http://tmac.technitium.com/
It even go preset macs of certain devices. I used it to change the mac of my virtual machine when using your-freedom and bypassing its time limit