Re: Name ownership and LLMNR (Re: Last Call: 'Linklocal Multicast Name Resolution...)

Tony Finch <dot@dotat.at> Fri, 02 September 2005 11:46 UTC

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Date: Fri, 02 Sep 2005 12:46:17 +0100
From: Tony Finch <dot@dotat.at>
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To: "Steven M. Bellovin" <smb@cs.columbia.edu>
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Cc: Harald Tveit Alvestrand <harald@alvestrand.no>, Iljitsch van Beijnum <iljitsch@muada.com>, IETF General Discussion Mailing List <ietf@ietf.org>
Subject: Re: Name ownership and LLMNR (Re: Last Call: 'Linklocal Multicast Name Resolution...)
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On Fri, 2 Sep 2005, Steven M. Bellovin wrote:

> >How can you verify the signature without an Internet connection with which
> >to fetch the key?
>
> If you have the zone key, you can do the verification offline.

How can you be expected to have the zone key of some random name that just
turned up on your network?

> What's going to happen to your link-local uniqueness when someone adds
> a bridge?

The same issue arises with new devices turning up on the network. Both
LLMNR and mDNS have mechanisms for dealing with uniqueness changes.

Tony.
-- 
f.a.n.finch  <dot@dotat.at>  http://dotat.at/
BISCAY: WEST 5 OR 6 BECOMING VARIABLE 3 OR 4. SHOWERS AT FIRST. MODERATE OR
GOOD.

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