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To: "Eric A. Hall" <ehall@ehsco.com>, "Masataka Ohta" <mohta@necom830.hpcl.titech.ac.jp>
Cc: <dnsop@cafax.se>
From: "BELOEIL Luc FTRD/DMI/CAE" <luc.beloeil@francetelecom.com>
Date: Thu, 31 Jul 2003 17:32:05 +0200
content-class: urn:content-classes:message
Sender: owner-dnsop@cafax.se
Thread-Index: AcNXJV2QX96dlOcqQ2eO7oysXEfc3wAUWvvA
Thread-Topic: avoiding proxies
Subject: RE: avoiding proxies

Hi Eric and Masataka

> -----Message d'origine-----
> De : Eric A. Hall [mailto:ehall@ehsco.com]
> Envoye : jeudi 31 juillet 2003 07:14
> A : Masataka Ohta
> 
> on 7/30/2003 11:10 PM Masataka Ohta wrote:
> 
> > I'm not sure what you mean "proxy".
> 
> I mean a third-party agent with knowledge of the application 
> and/or the
> environment. My examples were poorly formed but are valid in 
> the general
> sense, since we are still talking about relying upon extraneous agents
> which have to be managed explicitly and separately from the 
> application
> end-points themselves. Certainly there are advantages to doing so
> voluntarily (equitable benefit from the investment in resources), but
> requiring this model really needs to be avoided.
> 
> > On the Internet, the mechanism to relay requests to servers over
> > multiple links is called routing.
> 
> Exactly, let's let routing do the job it is supposed to be providing
> already anyway, rather than layering on even more mandatory services.
> 

Ok I may understand what do you wanna say. 
1- we could use multicast to transport DNS requests. But multicast is
not easy to deploy within access networks such as xDSL, RTC... (NBMA
links)
2- we could use anycast

But it is not clear for me how we could use DNSSEC in such scheme. There
is still and perhaps a bigger issue there if we need to distribute keys.
(I do not argue that RA-based solution is better there ;+)

Luc

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