nanog mailing list archives

Re: News of ISC Developing BIND Patch


From: "Mr. James W. Laferriere" <babydr () baby-dragons com>
Date: Thu, 18 Sep 2003 15:25:36 -0400 (EDT)


        Hello Whoever ,

On Thu, 18 Sep 2003 bdragon () gweep net wrote:
On Wed, 17 Sep 2003 bdragon () gweep net wrote:
MAC addresses are not without authority delegation. The IEEE is the ultimate
authority in said case.
Any solution which requires uniqueness also requires a singular ultimate
authority.
Even MACs aren't entirely unique.  Some places used to assign MAC
addresses like they assigned IP addresses and the NIC had to be
reconfigured for the assigned MAC.  An admin was freely able to assign a
MAC to Joe Blow using a 3Com or Cisco OUI without fear of retribution.  I
personally have never seen any use in such a thing but obviously someone
did.
Justin
manufacturer assigned macs are guaranteed to be globally unique.
A specific enterprise reconfiguring the mac is akin to an enterprise
using RFC1918 space.
        I have to agree with Mr. Shore here .  Mac addresses are NOT
        unique from ALL manufacturers '.' .  I do beleive that there was a
        a brand (maybe not USA) that the cadr came without mac-address
        hard assigned on the card ,  You HAD to ,  using their
        configuration tool assign one .  JimL
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