edns responses not sent by DNS Server

[Mark Andrews]

In message <1496134856349-3886.post at n4.nabble.com>, Harshith Mulky writes:
> Hello Mark,
> 
> Yes the client is retrying the query over TCP. 
> 
> But initially I am getting no Answers 
> The ANSWER is as below
> 
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  18094
> ;; flags: qr aa tc rd ad ; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL:
> 1
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags: do; udp: 4096
> ;; QUESTION SECTION:
> ;pcr21381.dflt.vzb.com.         IN      NAPTR
> 
> Should the server be sending some responses which are truncated (or) no
> Responses in this case?

The protocol allows for either behaviour.

Mark

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Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org