Bind response to query's very small edns udp payload size

Barry Margolin barmar at alum.mit.edu
Tue Apr 12 19:34:28 UTC 2016


In article <mailman.544.1460488816.73610.bind-users at lists.isc.org>,
 John Wobus <jw354 at cornell.edu> wrote:

> What does bind try to do if the client specifies a udp size of less than 512?
> I’ve been trying queries and here is what I’ve seen:

>From RFC 6891:

Values lower than 512 MUST be treated as equal to 512.

https://tools.ietf.org/html/rfc6891#section-6.2.3

So I expect BIND obeys this.

-- 
Barry Margolin
Arlington, MA


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