[128880] in North American Network Operators' Group

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Re: end-user ipv6 deployment and concerns about privacy

daemon@ATHENA.MIT.EDU (Owen DeLong)
Thu Aug 19 08:50:47 2010

From: Owen DeLong <owen@delong.com>
In-Reply-To: <20100819123007.GA27242@maya.aronius.com>
Date: Thu, 19 Aug 2010 05:49:30 -0700
To: Joakim Aronius <joakim@aronius.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Aug 19, 2010, at 5:30 AM, Joakim Aronius wrote:

> * Hannes Frederic Sowa (hannes@mailcolloid.de) wrote:
>>=20
>> But most people just don't care. My proposal is to have some kind of
>> sane defaults for them e.g. changing their prefix every week or in =
the
>> case of a reconnect. This would mitigate some of the many privacy
>> concerns in the internet a little bit. Of course all the already =
known
>> problems would still exist. And still people have to care about the
>> technology to reach a higher level of anonymity.
>=20
> Ok. Lets assume that the ISP hands out new prefixes to the clients CPE =
each week. The CPE then advertises these prefixes on the clients home =
network. For clients accessing the internet this works fine (except =
perhaps a glitch during the switchover).=20
>=20
> But what about the internal communication in the customer premises? =
How do they connect to their NAS, media players, printers, TVs etc? Of =
course there is UPnP, DLNA and different other kinds of magic but I =
imagine that most home users actually configure IP addresses at some =
point.=20
>=20
You actually imagine wrong in most cases. Many do, but, not most.

Most use mDNS for such things these days, actually.

> Constantly changing prefixes will ad another layer of complexity, =
things will break, and customers will be upset. (and quite frankly I =
don't think that you would gain that much privacy anyway)=20
>=20
I would agree. I think that customers that WANT privacy at the expense =
of having their prefix
change often being able to request such service might be a good =
value-add service you could
offer, but, I think the vast majority of customers would prefer prefix =
stability.

I think that the privacy implications of a stable prefix are vastly =
over-stated in this thread.

Owen



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