Spoof Ethernet MAC Address?

[pspiegel]

Hello,

I was wondering if there was a utility out there to spoof my MBP's ethernet MAC address to something that I predetermine? I am trying to register an airport on a business network that makes you go to a website to "register" your MAC address, but won't work to register the airport itself. I was hoping that by spoofing my Macbook's MAC address to the airport's, it would then prompt me to register that MAC address and then work on the Airport as well.

I know there is a program to do this to spoof my Airport's MAC address, but was curious if there is a way to do this via ethernet? I know you can via terminal, but I am not savvy with that, so any help would be appreciated!

Thanks!

 

[After G]

From wikipedia:

Under Mac OS X, the MAC address can be altered in a fashion similar to the Linux and FreeBSD methods:

ifconfig en0 lladdr 02:01:02:03:04:05

or

ifconfig en0 ether 02:01:02:03:04:05

Type these commands in a terminal window, and replace the numbers in the example with the numbers you want to use. And remember that this works only for your ethernet port.

 

[Nermal]

Be sure to make a note of the existing address before changing it 🙂

 

[mattjgalloway]

If you don't make a note then it's ok as the MAC addresses are on the serial number sticker which came with the box, and also after a reset it *should* reset the MAC address to the original. A MAC address is hard coded into the card - and it *shouldn't* be possible to spoof anyway! The whole MAC layer in the TCP/IP protocol stack is based around the MAC address being unique to each device! Ah well!