Re: mac duplication

dreamwvr_at_dreamwvr.com
Date: 12/15/03

  • Next message: Matthew Leeds: "Re: IE Remote" 
    Date: Mon, 15 Dec 2003 10:18:30 -0700
To: vuln-dev@securityfocus.com

    On Sat, Dec 13, 2003 at 11:23:57PM -0600, Burton M. Strauss III wrote:
    > Um...
    >
    > The burned in address is (supposed to be) globally unique. As a
    > {vendor|OEM} you need to get a block from IEEE (See their OUI files) and are
    > responsible for that block. You can't get another one until you assert
    > you've issued something like 90%+ of the last one. So according to the very
    > definition of the MAC address, it is globally unique.
    >
    > Which isn't to say it doesn't happen that mistakes are made during the
    > manufacturing processes. This does happen and - as someone else indicated
    > on this thread - can be a brass plated b*tch to find.
    in theory yes, however in practice see for example sea.c
    which demonstrates that one can't trust this to be true.

    Best Regards,
    dreamwvr@dreamwvr.com 

    -- 
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