[98485] in North American Network Operators' Group

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Re: large organization nameservers sending icmp packets to dns servers.

daemon@ATHENA.MIT.EDU (Paul Vixie)
Thu Aug 9 19:14:58 2007

To: nanog@merit.edu
From: Paul Vixie <vixie@vix.com>
Date: 09 Aug 2007 22:58:40 +0000
In-Reply-To: <10342.1186694951@turing-police.cc.vt.edu>
Errors-To: owner-nanog@merit.edu


Valdis.Kletnieks@vt.edu writes:

> > ... advising folks to monitor their authority servers to find out how
> > many truncated responses are going out and how many TCP sessions result
> > from these truncations and how many of these TCP sessions are killed by
> > the RFC1035 4.2.2 connection management logic, and if the numbers seem
> > high, then they ought to change their applications and DNS content so
> > that truncations no longer result.
> 
> How does the (eventual) deployment of DNSSEC change these numbers?

DNSSEC cannot be signalled except in EDNS.

> And who's likely to feel *that* pain first?

the DNSSEC design seems to distribute pain very fairly.
-- 
Paul Vixie

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