Bug Report from www.isc.org:

Name: Apoorva Maheshwari
Email: apoorva.maheshwar@ericsson.com
Software Version: 9.11.1
OS: solaris/linux
Subject:BIND 9.11.1-P3 : Recursion available (RA) bit set to 0 in BIND 9.11.1 P3 for updates


Bug Detail
===========
Hello BIND developers, 

We have dropped a mail on 9th Aug to info@isc.org, still waiting for your response. Please respond on our mail and add my mail id (apoorva.maheshwari@ericsson.com). quick response will be appreciated.

We have upgraded from BIND version 9.11.0 to 9.11.1-P3 and observed that Recursion available (RA) bit is set to 0
in case of update response. This bit was set to "1" when using earlier version of BIND (9.11.0) by default.


Steps to reproduce :
1. Updated BIND version from 9.11.0 to 9.11.1-P3.
2. Executed nsupdate command:
nsupdate
> server 127.0.0.1
> zone 9.msisdn.sub.cs
> update add 9876544.9.msisdn.sub.cs 300 CNAME SDP1.cs
> send
3. Verify the TCP dump for the response received from BIND. The RA bit is set to '0'. This bit was set as '1' in BIND 9.11.0

Note :

1.	We tried adding "allow-recursion" in option block in named.conf, but RA bit was still set to 0
 options {
     ...
     allow-recursion { any; };
2. The behavior is same for Bind version 9.11.2 as well. Recursion available (RA) bit is set to 0 in case of updates.

Attaching here with the tcp dump as well as the snapshots.
Is this something which have been introduced now ? Or is it a bug ?

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