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<p class=MsoNormal><span style='color:#1F497D'>This looks like what I want, but
I can’t get this configuration to work. Whenever I configure the
following:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>option server.ddns-hostname =
option fqdn.hostname;<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>option server.ddns-domainname =
option fqdn.domainname;<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Then I see no DDNS updates happening
at all on the server. My packet captures show that FQDN Option 81 is
configured with a value of ‘client.test.com.’ with the ‘S’
bit set ON. The syslog output from the server indicates that no DDNS is even
attempted. I have configured ‘ddns-update-style interim’.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Is there something else that I
must configure to get this behavior?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Greg<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
dhcp-users-bounce@isc.org [mailto:dhcp-users-bounce@isc.org] <b>On Behalf Of </b>Denis
Laventure<br>
<b>Sent:</b> Saturday, October 11, 2008 11:22 AM<br>
<b>To:</b> dhcp-users@isc.org<br>
<b>Subject:</b> RE: Client domain in FQDN option<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>You might want to check <a
href="http://marc.info/?l=dhcp-users&m=115410175622600&w=2">http://marc.info/?l=dhcp-users&m=115410175622600&w=2</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>It works well for me.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Denis<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=FR style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</span></b><span
lang=FR style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
dhcp-users-bounce@isc.org [mailto:dhcp-users-bounce@isc.org] <b>De la part de</b>
Greg.Rabil@ins.com<br>
<b>Envoyé :</b> 10 octobre 2008 17:20<br>
<b>À :</b> dhcp-users@isc.org<br>
<b>Objet :</b> Client domain in FQDN option<o:p></o:p></span></p>
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<p class=MsoNormal><span lang=FR-CA><o:p> </o:p></span></p>
<p class=MsoNormal>I have a question regarding the domain used for Dynamic DNS
updates. If I read the man page (and the code) correctly, it appears that
the domain portion of the FQDN determined by the server is always taken from
either the configured domain-name option (15) or the ddns-domain-name
policy. The hostname portion of the FQDN is derived from either the
hostname option (12) supplied by the client or the leftmost label of the FQDN
option (81). That is, any domain provided by the client in the FQDN option
(81) is essentially ignored by the server when performing the DDNS update.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>1. Is that correct?<o:p></o:p></p>
<p class=MsoNormal>2. If so, that does _<i>not</i>_ violate section 4 of
RFC 4702, as all references therein related to this are defined as MAY.
However, I was simply wondering if there was any plans to support additional
behavior in the server to use the client’s notion of the domain, or if
there are any other workarounds that may be available.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Greg Rabil<o:p></o:p></p>
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