[62516] in North American Network Operators' Group
Re: News of ISC Developing BIND Patch
daemon@ATHENA.MIT.EDU (bdragon@gweep.net)
Thu Sep 18 15:15:02 2003
To: listuser@numbnuts.net (Justin Shore)
Date: Thu, 18 Sep 2003 15:10:57 -0400 (EDT)
Cc: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.44.0309171846480.27081-100000@bubba.numbnuts.net> from "Justin Shore" at Sep 17, 2003 06:49:17 PM
From: bdragon@gweep.net
Errors-To: owner-nanog-outgoing@merit.edu
> 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.
