Change your MAC address

[RenegadeKing]

I recently found out how to change any of your network cards' MAC address in windows 9x/NT/2k/XP. I don't think this is very widely known, and it helps in case you have a cable connection and want another computer to access the internet, so I thought I'd share this with everyone.
Here's where I found it: http://forums.netstumbler.com/showth...p?threadid=586

Basically:

"Run regedit and look for the following key which is where all your netwok adapters will be located......

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}]

you will have to look for the subkey that is for your card, the first subkey will be \000. My wildPacket's driver were located at \002 and my Orinoco was at \009. Look for a string value called NetworkAddress, Win 2K will have it and on Win XP you will have to add it yourself. Just double click on NetworkAddress and set the value to what you want your new Mac to be."

and

"so here is where you can find it in ME (may be in other 9x versions, too)

HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Class/Net/
there you have to look for your card (my card is 0012)."

The NetworkAddress should be a string and the MAC address should have no dashes or colons, like this: "NetworkAddress"="002CDEADBEEF"

I hope someone can find this useful, because my friend did with his old 486 he turned into a router. I figured that this would just cover up the NIC's real MAC address in windows, but when I checked in Linux it was the one I had changed it to!

RenegadeKing

[fatboyjim]

Sorry, I didn't understand the USE of that, could you explain again please?

[RenegadeKing]

Well, my cable ISP (cox) gives out IPs based on the MAC address of the NIC. So, if I had 2 NICs in my computer, only one of them would be able to get an IP from cox, because each's MAC address is different. If you buy a router, the router now has to get an IP, so they have a feature called MAC address cloning. What that does is get the MAC address from the computer that currently gets online, and uses it for itself, so that it can get an IP. Now, if you use a computer as a router (486, two ISA NICs, windows and ICS or Linux), you have can't do this MAC address cloning (or so most people think). But with this, you can. Just check the MAC address of the NIC that currently gets an IP with ipconfig, and use that for the router's NIC that must get an IP from the ISP. Then you can also change you MAC address for fun so it says stuff. Just a neat little trick that I thought I'd share.

RenegadeKing

[fatboyjim]

Crystal clear now, thanks very much

Now that IS an interesting trick