Windows – How to Change the MAC Address of a Network Card

mac addressnetworkingwindows

I have a local network in a Windows system where the Admin gives permission to the PCs by their MAC address. But he is on vacations and I have a new PC.

How can I change the MAC address of my new PC to have the same MAC address as the old one?

I know this can be used for spoofing the address, but this is local, so I don't think I will have a problem.

Best Answer

I have used these instructions in the past and they work great

There’s a C++ command-line utility called Macshift that allows Windows XP users to change their MAC address to any other valid address. I’ve written about how to use it and how to create shortcuts to change your MAC address on-the-fly. I’ll first explain how to use Macshift for any MAC change, then I’ll show you how to make Windows shortcuts using the command-line options. I’ve also made a small script to make it easier to use, but the script isn’t necessary. Macshift usage
Macshift is a command-only utility, so you need to learn the options to use it.

Related Solutions

Mac – Change MAC address of a wireless network adapter

If your hardware doesn't support changing it's MAC address then the easiest solution would be to purchase a new USB 802.11x card. Since the MAC address depends on the NIC a new usb card would do the trick.

Edit:
You can change your MAC address by doing this.

From the command line, log in as root and type;

ifdown eth0
ifconfig eth0 hw ether 00:80:FF:FF:98:F5
ifup eth0

This change will only persist until you reboot, so you probably want to put this in your boot script /etc/init.d/

Credit : http://www.linuxforums.org/forum/suse-linux/24956-clone-mac-address.html

Mac address clone on DD-WRT

What's being cloned here is the MAC address of the PC you're using to access the router, not the MAC address of the old router. Your new router has no way determining your old router's MAC address.

I guess you could clone your old router's MAC address if you connected to your new router through your old router. Then the MAC address the new router sees is that of the old router instead of that of your PC. Tricky, though. Might be easier just to enter the MAC address by hand.

If you no longer have the old router and haven't recorded its MAC address somewhere, then there's no way to get it into the new router. You'll just have get the network administrator to add the new MAC address to the filter list.

Best Answer

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Mac – Change MAC address of a wireless network adapter

Mac address clone on DD-WRT

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