Changing MAC address of a machine is called spoofing a MAC address or faking a MAC address. In linux, you can change MAC address of your machine.This is how it is done. How to change MAC address in Linux First find the physical MAC address of your machine by running the following command: $ ifconfig -a grep HWaddr eth0 Link encap:Ethernet HWaddr 00:80:48:BA:d1:20 The hexadecimal numbers in blue denote my machine's MAC address. Yours will be different.
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Since you have the MAC address, scroll down the list to find the associated IP address. The MAC address is shown in the 'Physical Address' column with the IP address in the 'Internet Address' column. An example of a table record is in Step 4. Under MS-Windows XP or 2003 server the MAC address can be changed in the Ethernet adapter’s Properties menu > Advanced tab > Look for MAC Address > Locally Administered Address > Ethernet Address > Physical Address option.
Learn how to use the Linux command. You can also use ethtool to find the hardware address of your machine. Next, login as root in Linux and enter the following commands - # ifconfig eth0 down # ifconfig eth0 hw ether 00:80:48:BA:d1:30 # ifconfig eth0 up # ifconfig eth0 grep HWaddr I have changed the MAC address to a different number highlighted in blue. 00:80:48:BA:d1:30 is the new MAC address I have provided for my Linux machine. You can choose any 48 bits hexadecimal address as your MAC address.
Why you should change MAC address of your Linux machine These are the reasons you should change the MAC address of your machine. For privacy - For instance when you are connecting to a Wi-Fi hotspot. To ensure interoperability.
Some internet service providers bind their service to a specific MAC address; if the user then changes their network card or intends to install a router, the service won't work anymore. Changing the MAC address of the new interface will solve the problem. Caveats to Changing MAC address In Linux, Windows, Mac OS X, or a different operating system, changing MAC address is only temporary. Once you reboot your machine, the operating system reflects the physical MAC address burnt in your network card and not the MAC address you set.
Command Prompt cmd and getmac /v. Click on Start button and choose All apps. Find app Search, type command cmd. Then click on Command Prompt (you can also press WinKey+R and enter command cmd). Then type getmac /v and press Enter. Find your Ethernet adapter, locate column Physical Address and MAC address (group of letters A - F and numbers 0 - 9).
Command Prompt cmd and ipconfig /all. Type ipconfig /all and press Enter. Find your Ethernet adapter Ethernet, locate row Physical Address and MAC address (group of letters A - F and numbers 0 - 9).