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sweetNoob

@optonline.net

Network interace cards

I used a program called tmac to change my nics mac address.

then i formatted and reinstalled and saw that it is still changed even though i installed the network driver.

how did it permanently change the value?


ashrc4
Premium
join:2009-02-06
australia
4. To restore the original MAC address of the network adapter, select the adapter, click Restore Original button in the Change MAC Address frame.

Maybe it depends where your looking;

»www.technitium.com/tmac/index.html
--
Paradigm Shift beta test pilot. "Dying to defend one's small piece of suburb...Give me something global...STAT!


mackey
Premium
join:2007-08-20
kudos:12
reply to sweetNoob
You sure you reformatted and reinstalled?

quote:
How Does It Work?

This software just writes a value into the windows registry. When the Network Adapter Device is enabled, windows searches for the registry value 'NetworkAddress' in the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1- 08002bE10318}\[ID of NIC e.g. 0001]. If a value is present, windows will use it as MAC address, if not, windows will use the hard coded manufacturer provided MAC address.
/M


SweetNoob

@optonline.net
reply to sweetNoob
Yes. there was an option named "make mac address persistent"


SweetNoob

@optonline.net
reply to sweetNoob
well all i know is im changing my nic.

garys_2k
Premium
join:2004-05-07
Farmington, MI
reply to sweetNoob
Maybe the NIC has writable persistent memory that accepts the MAC that the OS assigns to it and makes it the default. I'm not seeing a security issue, here.


SweetNoob

@optonline.net
Thanks for the clarification. i did not think of it that way.