[Kea-users] Fwd: is there any way to force kea-dhcp4-server/kea-dhcp-ddns-server to use option 12 instead of option 81?

[Thomas Markwalder]

Hello again:

Minor correction to the expression provided previously:

      "hostname-expr" : "ifelse(option[12].exists, 
option[host-name].text, option[81].text)"



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Date: 	Wed, 6 Sep 2023 09:53:50 -0400
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Subject: 	Re: [Kea-users] is there any way to force 
kea-dhcp4-server/kea-dhcp-ddns-server to use option 12 instead of option 
81?
To: 	kea-users at lists.isc.org
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From: 	Thomas Markwalder <tmark at isc.org>
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Hello:

This can be done via our premium DDNS Tuning hook library:

https://kea.readthedocs.io/en/latest/arm/hooks.html#libdhcp-ddns-tuning-so-ddns-tuning

which allows you to define hostname expression. You would do something 
similar to this:

"hostname-expr" : "ifelse(option[host-name].exists, option[host-name], 
option[81])"



On 9/6/23 09:23, Marc Richman wrote:
> Our windows systems are populating option 81 with <hostname>.<domain>
> but the DNS records  should be <hostname>.<site>.<domain>
> this causes the A records to look like the 
> following   <hostname>.<domain> . <hostname>.<site>.<domain>
>
> I can't find any way to get the kea servers to use the unqualified 
> option 12
>
> anybody have any thoughts on how to fix this?
>
>
>     Thanks
>         Marc
>
>
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