DDNS with dhcpd -6

David W. Hankins dhankins at isc.org
Thu Oct 1 23:06:03 UTC 2009

On Fri, Oct 02, 2009 at 10:55:04AM +1300, Eustace, Glen wrote:
>    host it044042-vista {
>       ddns-hostname "it044042-vista";
>       option host-name "it044042-vista";
>       host-identifier option dhcp6.client-id 00:01:00:00:00:00:00:00:00:0c:29:f4:14:1b;
>    }

shoot me.

sorry Glen, if i'd known this sooner, i could have said "known bug".

we have a problem when host records are not using a fixed-address
statement (in dhcpv6 only), the host's contents aren't executed.
conversely, when a host record does have a fixed-address statement,
the subnet (and shared and etc) contents aren't executed.

so the ddns-hostname configured here isn't getting loaded, assuming
the host record matches...unless you add a fixed-address...in which
case ddns updates aren't done.  lose/lose.  :(

i've comitted a fix for 4.1.1-next (b3 or rc1, not sure yet if the
consensus is the changes are small enough to go to rc).  i'm reworking
the fix for 4.0.2-next still.

4.1.1-next should be out RSN.

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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