Re: TCP response with truncated bit set?

[Mark Andrews <Mark_Andrews@isc.org>]

> If you do a DNS query over UDP and get a response with the TC bit set, 
> the client retries using TCP.
> 
> If the response received over TCP also has the TC bit set, what does that 
> mean?

	It means that the answer would not fit into the buffer used to
	assemble the TCP response.  Note not all implementations use /
	have used 64k buffers.
 
	Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews@isc.org

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