[Kea-users] Suppress DDNS for reservations

Francis Dupont fdupont at isc.org
Wed Mar 9 11:04:57 UTC 2022


Kenneth Porter writes:
> I've enabled DDNS for my subnet but I don't want it used for reservations, 
> only for the pool. The DNS entries for reservations are manually entered in 
> my DNS in a higher-level domain. (The pool is entered in the "dhcp" 
> subdomain which allows updates.)
>
> My subnet is a /16 and the pool is a specific /24 of that. Other /24's are 
> used for specific functions, including the gateway. So I can't just put the 
> pool in its own subnet or it will get the wrong mask and won't be able to 
> reach the gateway.
>
> I can't use ddns-send-updates set to false in a reservation. It only works 
> in a subnet declaration or at global scope.
>
> What am I missing?

=> I suggest to try a shared network with two subnets covering the same
range but with different textual representations (e.g. put ...1 in the
second).

Thanks

Francis Dupont <fdupont at isc.org>


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