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RE: I-D ACTION:draft-ietf-ipv6-unique-local-addr-08.txt



I have to agree with this MUST NOT.

|+    Advertising locally assigned ULA AAAA records in the global DNS
|+    MUST NOT occur as they are not globally unique and will lead
|+    to unexpected connections.

Although there is a good chance that someone else in the world has my same
name, they don't receive their mail at my home address.  OK, Bad example
(reversed).  But if there is a chance of overlap; allowing this insures
there is a chance of misdirection.

$.02
-Brian
http://consult.tavian.com

-----Original Message-----
From: ipv6-bounces@xxxxxxxx [mailto:ipv6-bounces@xxxxxxxx] On Behalf Of Dan
Lanciani
Sent: Friday, December 03, 2004 12:15 PM
To: ipv6@xxxxxxxx
Subject: Re: I-D ACTION:draft-ietf-ipv6-unique-local-addr-08.txt

Mark Andrews <Mark_Andrews@xxxxxxx> wrote:

|+    Advertising locally assigned ULA AAAA records in the global DNS is
|+    MUST NOT occur as they are not globally unique and will lead
|+    to unexpected connections.

I strongly object to making this a "MUST NOT," especially with the growing
uncertainty that there will ever be a _permanent_ centrally assigned flavor
of ULA available without recurring fees.

An important feature of even locally assigned ULAs is that they are globally
unique "enough" for many/most purposes that have been discussed.  After
months
of analysis to that end, their lack of absolute uniqueness is insufficient
to
justify adding new prohibition on a particular range of uses at this late
date.

				Dan Lanciani
				ddl@danlan.*com

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