Saturday, April 20, 2013

How to change the MAC Address for Mac OS X Mountain Lion

Creating a random MAC Address
A MAC address is always in the format xx:xx:xx:xx:xx:xx. If you want to generate randomly a new MAC Address you can use the following command using openssl:
openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//'

Setting up the new MAC

In Mac OS X the network interface usually is en0 or en1.  The command for changing the MAC address is as follows:
sudo ifconfig en0 ether xx:xx:xx:xx:xx:xx
replacing “xx:xx:xx:xx:xx:xx” with the new MAC address. For example:
sudo ifconfig en0 ether 36:81:51:8e:f1:76

Hope help

1 comment:

  1. You can create temporary MAC Address in Linux by typing
    sudo ifconfig eth0 hw ether xx:xx:Xx:xx on terminal .
    the MAC-address will change and will stay until reboot. If you wish to change MAC-address permanently, you can use various software's available in market .

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