Changing MAC Address of the Computer - www.SecurityXploded.com
Changing MAC Address of the Computer
MAC Address of Computer
Any packet sent to remote system on the
network contains MAC address and IP address of your computer. Many of us
are still under the
impression that IP address can be changed, but MAC address is fixed and
cannot be changed unless network card is replaced.
Though we cannot change the MAC address of the network card, we can
certainly change it in the operating system.
Here are the steps to change the MAC address on various operating
Changing MAC Address on Linux
On Linux platform you can just use 'ifconfig' command to set the new
MAC address as shown below.
ifconfig eth1 down
ifconfig eth1 hw ether 11:12:13:14:15:16
ifconfig eth1 up
Changing MAC Address on Windows
In windows you can use a console tool called 'etherchange' to change
the MAC address. When you run this tool, it will show you all available
network interfaces and then you can select particular interface to
change its MAC address. You can just disable and enable that network
adapter for changes to take effect. Once you have finished playing your
game, you can run this tool again to restore the MAC address back to
It is basically achieved through a following registry hack. Open up your
registry editor and move to the following location.
The above key has many subkeys with names such as 0000, 0001, 0002
etc. Each of these keys have a "DriverDesc" value on the right side
which contains the description of the network card. You have to go
through each one of these entries until you find out the one with the
same description as your current network interface. Once you have found
just create following string value to set new MAC address (in
NetworkAddress REG_SZ 111213141516
Once you have changed it, disable & re-enable the network card for
changes to take effect. Then
use the command 'ipconfig /all' to verify new MAC address. To set
that network interface
back to the original address, just delete the above value from registry.