[dns-operations] TC=1 with RA=0 from a recursive resolver
marka at isc.org
Tue Mar 22 09:48:49 UTC 2016
In message <87io0f6i78.fsf at mid.deneb.enyo.de>, Florian Weimer writes:
> * Mark Andrews:
> > That's what RFC 1034 says.
> > - The recursion available, or RA bit, is set or cleared by a
> > name server in all responses. The bit is true if the name
> > server is willing to provide recursive service for the client,
> > regardless of whether the client requested recursive service.
> > That is, RA signals availability rather than use.
> > If RD effects RA then the server is broken.
> But RFC 1034 does not reflect current practice.
Nothing has changed this behaviour since RFC 1034 was written.
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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