DHCP, Dynamic DNS, and IPv6

[Loren M. Lang]

On Wed, 2008-08-20 at 08:14 -0700, David W. Hankins wrote:
> 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.

I am considering switching/complementing IPv6 auto-configuration which
the IPv6 version of DHCP.  I assume it supports Dynamic DNS is the same
manner as with IPv4.  Will the two daemons clash when assigning names
under the same domain?

> 
> -- 
> Ash bugud-gul durbatuluk agh burzum-ishi krimpatul.
> Why settle for the lesser evil?	 https://secure.isc.org/store/t-shirt/
-- 
Loren M. Lang
lorenl at north-winds.org
http://www.north-winds.org/


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