This might be a wild shot, and I may e talking mince (I do, often) but it's my understanding that the MAC address is read from the ROM on the card at driver start-up, this is then held in memory by the OS and it's this memory that is used as the actual MAC address. Theoretically changing this in memory after the card had booted should allow you to spoof a MAC addy.
If I recall the location on win95 is something like - HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\Net\000<x>\Networ kAddress And under Linux this can be done with the good old ifconfig program ifconfig ethX hw 00DEADBEEF00 and again, in theory this should work with any card (yeap, even the ones you already got). The cards that advertise as having changeable MAC addresses have software available that will allow you to change the ROM on the NIC to a new address, this has the advantage of allowing the change to survive a reboot. HTH, Ian I theory there is no difference between theory and practise, in practise there is. -----Original Message----- From: Colin McKinnon [mailto:[EMAIL PROTECTED] Sent: 10 March 2003 09:53 To: scotlug Subject: [Scottish] What's up MAC? Anybody know which NICs have programmable MAC addresses? Preferably configurable under Windows as well as Linux. Extra browny points will be awarded for cheapness ;) Colin _______________________________________________ Scottish mailing list [EMAIL PROTECTED] http://mailman.lug.org.uk/mailman/listinfo/scottish ________________________________________________________________________ Scottish Enterprise Network http://www.scottish-enterprise.com Headquarters Address & Contact Numbers 150 Broomielaw 5 Atlantic Quay Glasgow G2 8LU. Tel: +44 (0) 141 248 2700. Fax: +44 (0)141 221 3217 This message is sent in confidence for the addressee only. It may contain legally privileged information. The contents are not to be disclosed to anyone other than the addressee. Unauthorised recipients are requested to preserve this confidentiality and to advise the sender immediately of any error in transmission. _______________________________________________ Scottish mailing list [EMAIL PROTECTED] http://mailman.lug.org.uk/mailman/listinfo/scottish
