DHCP, Dynamic DNS, and IPv6
David W. Hankins
David_Hankins at isc.org
Wed Aug 20 15:14:30 UTC 2008
On Wed, Aug 20, 2008 at 01:27:23AM -0700, Loren M. Lang wrote:
> section, but a status of NOERROR instead of NXDOMAIN. At that point it
> decides that it can't update the name even though there is no A or TXT
> records for it.
RFC 4703, section 5.3.1. In order for updates to proceed, a query
on the name must be NXDOMAIN, to ensure that it has not yet been
allocated. This is not a specific query, but rather a prerequisite
on the first update attempt.
> How can I get DHCP to update the records regardless of
> the existence of a AAAA record?
Short of editing sources, I don't see a way.
In theory you should be able to just insert the TXT record when you
add the AAAA. But now that I remember, I think our ddns removals will
drop the TXT record if it expired the last A record. We should
probably be checking for both A and AAAA there.
--
Ash bugud-gul durbatuluk agh burzum-ishi krimpatul.
Why settle for the lesser evil? https://secure.isc.org/store/t-shirt/
--
David W. Hankins "If you don't do it right the first time,
Software Engineer you'll just have to do it again."
Internet Systems Consortium, Inc. -- Jack T. Hankins
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