To change the mac address in RHEL,Centos or any linux based operating system please follow these steps:-
Steps for changing MAC address temporarily
step1:- First turn off the network interface
step2:- Change the desired MAC address but which should be hexadecimal format XX:XX:XX:XX:XX:XX
step3:- Turn on the network interface
step4:- Check the status of the MAC address
# ifconfig eth0 down
# ifconfig eth0 hw ether 00:11:09:9B:83:C8
# ifconfig eth0 up
# ifconfig eth0 |grep HWaddr
