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To: mohta@necom830.hpcl.titech.ac.jp (Masataka Ohta)
Cc: dnsop@cafax.se
From: Ted Hardie <Ted.Hardie@nominum.com>
Date: Tue, 29 Oct 2002 09:42:40 -0800 (PST)
In-Reply-To: <200210291216.VAA16597@necom830.hpcl.titech.ac.jp> from "Masataka Ohta" at Oct 29, 2002 09:16:38 PM
Reply-to: Ted.Hardie@nominum.com
Sender: owner-dnsop@cafax.se
Subject: Re: DoS and anycast

> 
> Isn't prevention of DoS attack on root servers a good enough reason
> to deploy anycast?
> 
> 							Masataka Ohta

No.

Deploying anycast services (outside the RFC-1930 compliant methods
currently in use) lessens the effect of a DoS attack, but at the cost
of risking the integrity of the data provided by the service.  Once
the data is adequately protected against that risk, deploying anycast
(or "side-band delivery" or any other funky method of passing the bits
around) is fine.   

		regards,
				Ted Hardie



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