[dns-operations] Is this valid edns0 query?

Mukund Sivaraman muks at isc.org
Fri Oct 10 18:22:08 UTC 2014


On Fri, Oct 10, 2014 at 05:52:21PM +0000, Wessels, Duane wrote:
> Mohamed,
> 
> I'd say it is valid.
> 
> RFC 6891 says (section 6.1.2) that a client or server should simply
> ignore OPTION-CODE values that it doesn't know about.  The request
> should be processed as though that funny option code were not even
> there.

There's more to it. Mark has written it up here:

http://tools.ietf.org/html/draft-andrews-edns1-01

		Mukund
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