[143053] in North American Network Operators' Group

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Re: dynamic or static IPv6 prefixes to residential customers

daemon@ATHENA.MIT.EDU (Matthew Kaufman)
Tue Jul 26 21:11:56 2011

From: Matthew Kaufman <matthew@matthew.at>
In-Reply-To: <-3414909030888851989@unknownmsgid>
Date: Tue, 26 Jul 2011 21:10:48 -0400
To: Matt Addison <matt.addison@lists.evilgeni.us>
Cc: Daniel Roesen <dr@cluenet.de>, "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Jul 26, 2011, at 8:29 PM, Matt Addison wrote:

> On Jul 26, 2011, at 20:08, Valdis.Kletnieks@vt.edu wrote:
>> There's a subtle but significant difference between what cookies give =
you,
>> which is "This is the same entity that visited our page at 7:48PM =
last
>> Tuesday", and what easily trackable IP addresses give you, which is =
"This is an
>> entity located at 1948 Durhof Street".
>=20
> With how much identifying information user agents leak nowadays [1]
> this is almost a moot point. If you can be uniquely identified through
> the user agent- does it really matter that they can uniquely ID the
> household as well based on prefix information?


That depends on what happens when ISPs do start giving residences /48s =
and ARIN starts asking for the SWIP details on blocks that large.

Matthew Kaufman=


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