Re: [dnsext] I-D Action: draft-ietf-dnsext-rfc2671bis-edns0-08.txt

Edward Lewis <Ed.Lewis@neustar.biz> Mon, 13 February 2012 18:31 UTC

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Date: Mon, 13 Feb 2012 13:27:51 -0500
To: "W.C.A. Wijngaards" <wouter@nlnetlabs.nl>
From: Edward Lewis <Ed.Lewis@neustar.biz>
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Subject: Re: [dnsext] I-D Action: draft-ietf-dnsext-rfc2671bis-edns0-08.txt
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At 14:05 +0100 2/13/12, W.C.A. Wijngaards wrote:

>Why is: udpsize < 512 MUST be treated as 512 size?

My assumption:

1) For ease of implementation
2) Because if the bufsize is too small, the header might not fit. ;)

There's a need to set a lower bound for bufsize large enough to allow 
for even a FORMERR response.  That's, what 12 bytes give or take, way 
less than 512, but the protocol is used to 512 as hard size limit.

Do you want/need to see 512 lowered?
-- 
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Edward Lewis
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2012...time to reuse those 1984 calendars!
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