Friday, July 8, 2011

How to change MAC address in fedora

1. First step is to find the current MAC address and take a backup copy in a safe place.

To know your current MAC type:
$ ifconfig | grep HWaddr
eth0 Link encap:Ethernet HWaddr 00:19:48:2E:D1:27

The above hexadecimal numbers 00:19:48:2E:D1:27 is your MAC address for device eth0.
Simply copy and paste it in a file.

2. Now, time to change the MAC address this requires you to work as root user.
Take the network interface down
# ifdown eth0

Now, lets change the current MAC address to 00:E0:81:5C:B4:0F
# ifconfig eth0 hw ether 00:E0:81:5C:B4:0F

Take the network interface up again
# ifconfig eth0 up

Check if your MAC address is changed:
# ifconfig eth0 | grep HWaddr

Changing MAC address is only temporary. Once you reboot your machine, the operating system will reflect the physical MAC address burnt in your network card and not the MAC address you set.


  1. Thanks a lot! A nice tip to make tests.

  2. Useful post, but I thought ifconfig was deprecated and people should be moving to the `ip` command. Could you do the same post for that method?

  3. Knowledge giving Article! I appreciate you. I completely agree with you. If we talk about current scenario then it is must be update. I enjoyed reading. I would like to visit more for more queries.
    MAC Address Software

  4. I tried this, but after changing the MAC address the connection with the network failed, and when i turned MAC address back the connection return. What could be the problem ?

    Silvester Norman

    Change Mac Address

  5. How to Change a Computer's Mac Address in Windows

  6. You can get vendor/Manufacturer from mac address