[thelist] FW: MAC Addresses/Physical Address!

Mark Anderson marke.anderson at btinternet.com
Wed Oct 2 17:09:00 CDT 2002

Thanks for that info someone else also mentioned that mac addresses could be
spoofed BUT it's useful to have some info to show them! But realistically
how easy is it to spoof especially as the client's users won't be aware that
the check is there?

What I need to be able to show is a 'relatively' unique number that my
client can use in their database and can be interrogated programmatically
and returned to the database to check the system is up to date etc and the
number should not be easily altered by the client's users?


-----Original Message-----
From: thelist-admin at lists.evolt.org
[mailto:thelist-admin at lists.evolt.org]On Behalf Of Hassan Schroeder
Sent: 02 October 2002 22:57
To: thelist at lists.evolt.org
Subject: Re: [thelist] FW: MAC Addresses/Physical Address!

Mark Anderson wrote:
> I'm trying to obtain programmatically the MAC Addresses/Physical Address
> ADSL modems!
> I have a client that wants to be able to uniquely identify a whole series
> pc's they have which are spread around the country and connected to the
> internet and check a unique unalterable id against a central database so
> they can load appropriate updates etc. Basically it's to be part of a
> licensing system!

Uh, well. Possibly, MAC addresses aren't *quite* what you want. :-)
They *are* guaranteed unique from chip to chip, but unalterable? No.

For starters, see:


(See "Cloning", page 4). For more info, google["MAC address" spoof].

Hassan Schroeder ----------------------------- hassan at webtuitive.com
Webtuitive Design ===  (+1) 408-938-0567   === http://webtuitive.com

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