Reader Comments

How Do I really Change NIC's MAC address? Is It possible? And Is if it is, can I do it with some software of any mechanical interruption is needed?

You're kidding right? Changing the HARDWARE MAC address can only be accomplished by running a program that modifies that 'unique number' in the Network adapter's memory. The MAC address is stored on the network card, not in the windows registry. I wouldn't be surprised if 3COM, Intel, and other network card manufacturers offered software to change their MAC addresses programatically, but the new address should still conform to the address range set aside for each manufacturer.

SMAC is a very easy to use, and very intuitive tool for changing MAC address on Windows 2000 and XP. Usually can change the MAC in seconds, and no need to go through registry. Works for almost all NICs according to the SMAC website: http://www.klcconsulting.net/smac

You've got to be kidding. Damn. I really need to change my MAC Address, I don't need some clown who doesn't know what the hell their talking about.

How do I do under w2k?

hey buddy your are right but did you ever hear about administered MAC address?

I WANT TO CHANGE MY ON BOARD LAN MAC ADREES

I used this on Windows 95/98 and it worked, so why wouldn't it work on later versions of Windows? Some NIC drivers refer to the registry key to overwrite the hardware setting, some don't. Choose the right brand/driver or use a third party program to accomplish the task.

Windows has a registry key that, if set, replaces the MAC address for every outgoing packet sent. It's only a temporary thing though; you don't actually change the physical MAC address, you just spoof a different one. On XP, you just need to go into the device driver, find the setting called "Network Address" type in a 12-digit hexadecimal number and voila.

I need to know how to change the mac address in windows ME please email me Patandangie99@yahoo.com

XP doesn't do magic and it doesn't change MAC for all drivers. Is the driver that "export" it's settings to XP, and through "XP Driver Settings" is possible to change the defaults values, including MAC ADDRESS when allowed. So, is necessary to use anothers ways to change MAC when driver doesn't allow native changes.

use a-mach changer .. it will change the mac address by clicks

oOOps i'm typoo sorry i mean A-MAC address changer ..sorry again

any idea about changing it in win 2003 server ?

The technique worked great on NT 4. Thanks Instant Doc! The change forced my ISP to change my IP address as they link IP addresses to MAC addys.

To see your existing MAC addy go to DOS (start, Program Files, Command Prompt) and type ipconfig /all.

In addition to the above steps note that there are two entries in the Reg for each NIC card. The changes needed to be made to the second entry on my system. Also, I had to both reboot and unplug and then plug back in the cable modem to get the DHCP server to give me a new IP address.

http://en.wikipedia.org/wiki/MAC_address

Devcon utility: http://support.microsoft.com/default.aspx? scid=kb;EN-US;Q311272

http://www.governmentsecurity.org/archive/t15790.html

http://techrepublic.com.com/5208-11196-0.html?forumID=73&threadID=140696

http://www.klcconsulting.net/smac-cl Manual method for W2K and XP: http://www.nthelp.com/NT6/change_mac_w2k.htm MAC address changer for W2K, XP, W2003, $14.99: http://www.klcconsulting.net/smac

You should be tried GentleMAC utility. mmm... url like http://www.solarst.com Best Regards!

The best way to change your MAC address is to get a network card that allows you to change your MAC address in the network cards eeprom, try http://www.sdadapters.com

SMAC is still the best in my opinion. SMAC: http://www.klcconsulting.net/smac