[Kea-users] subnet based DDNS

[Thomas Markwalder]

On 2/1/17 8:37 AM, Keith Baker wrote:
>
> Hi,
>
>  
>
> I’m currently using Kea as DHCP and to report into a Dynamic DNS but
> I’ve hit a bit of a snag. There’s a possibility that people on
> different subnets may well choose to use the same machine name, which
> I suspect is going to cause issues once they go into DNS.
>
>  
>
> One solution is to use different subdomains on different subnets.
>
>  
>
> So what I was wondering is is there a way to change the
> “qualifying-suffix” per subnet or have it report a different suffix
> depending on which subnet it’s requesting an address for.
>
>  
>
> Eg:
>
>  
>
> Users on 192.168.1.x/24 get *.foo.domain.local by default if no fqdn
> is supplied.
>
> Users on 172.16.x.x/16 get *.bar.domain.local by default if no fqdn is
> supplied.
>
>  
>
> Thanks
>
>  
>
> Keith
>
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> Keith Baker
>
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Hello Keith:

We have a ticket opened now to allow items like qualifying-suffix to be
specified on a per subnet basis:

http://kea.isc.org/ticket/5048

We hope to get it into an upcoming release soon.  It is unlikely to make
it into 1.2 which is due out in April, but it is a good candidate for
1.3.  Others have asked this recently as well.

Alternatively it should also be possible to write a select_subnet hook
to insert or replace the FQDN in the client packet with a value
constructed in the hook based on the selected subnet.

Sincerely,

Thomas K. Markwalder

ISC Software Engineering

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