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--></style><title>Re: [dns-operations] who cares about RA
bit</title></head><body>
<div>At 16:49 +0800 6/16/11, ¡žñæêØÅFÅj wrote:</div>
<div>we know that the recursor sets RA bit in the responses to the
queries from its clients.</div>
<div>I wonder if the clients care about the bit and
when.</div>
<div><br></div>
<div>IANA's TLD delegation looks for it as well as other debugging and
checking scripts.</div>
<div><br></div>
<div>On http://www.iana.org/procedures/nameserver-requirements.html,
see item 2.11.2.</div>
<div><br></div>
<div>It's fairly important when debugging DNS operations. I can
say that from experience. Other than checking for it as part of
DNS management, I don't know that it plays any other role. I
doubt stubs look at the flags.</div>
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