ddns 'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET)

[Gregory Machin]

Thanks for taking time to clarify those errors. Based on the
explanation the errors are expected and correct.

Thank you.

Greg

On Tue, Feb 28, 2012 at 5:40 PM, Mark Andrews <marka at isc.org> wrote:
>
> In message <CAJzjPKmwVxMCR6yi4Wq6d6NnaiM=gERkcvfefU=wsrxcZUsKVw at mail.gmail.com>,
>  Gregory Machin writes:
>> Hi
>>
>> I'm running  DHCP Server V3.0.1 on Debian 3.2 and BIND 9.7.1-P2 on
>> Ubuntu 10.10 , this is part of a staged migration , hens the old
>> Debian server.
>>
>> When machines request an ip from the dhcp server I see the following
>> in the dhcp server logs :
>>
>> Can't update forward map nzhmlwks0091.et.endace.com to 192.168.69.245:
>> no such RRset
>>
>> And at the same time on the Bind server I see :
>>
>> Feb 28 16:17:11 nzhmlsrv01 named[3363]: client 192.168.64.242#40426:
>> view interenal: updating zone 'et.endace.com/IN': update unsuccessful:
>> nzhmlwks0091.et.endace.com: 'name not in use' prerequisite not
>> satisfied (YXDOMAIN)
>
> The DHCP server said only make this change if there is nothing at
> the name and there was something at the name.  This is done to
> prevent DHCP overriding static entries.
>
>> Feb 28 16:17:11 nzhmlsrv01 named[3363]: client 192.168.64.242#40426:
>> view interenal: updating zone 'et.endace.com/IN': update unsuccessful:
>> nzhmlwks0091.et.endace.com/TXT: 'RRset exists (value dependent)'
>> prerequisite not satisfied (NXRRSET)
>
> The DHCP server said only make this change if the TXT record that
> says I did the last change exists and it doesn't.  This is done to
> prevent the DHCP server changing/removing records it didn't add.
>
> The TXT record was used to encode what is now encoded in the DHCID
> record.  See http://www.ietf.org/rfc/rfc4701.txt
>
>> What are these errors and how do I resolve them ?
>
> If you are certain that there is not a collision removing all the
> records at the name will permit DHCP to add new record.
>
> dhcp-users at isc.org would be a good place to discuss what DHCPD is trying
> to do.
>
>> Thanks
>>
>> Greg
>> _______________________________________________
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> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org