[Kea-users] Expire single IP

[DDFR | Ronald Blaas]

The lifetime is set to 1 hour. But it seems that the IP stays reservered (on mac) as I see in the logging that the IP cannot be assigned due to conflict.
Note that the previous device on that port was disconnected more than 1 hour ago (as in a day or maybe more)

That is why I was wondering if it could be force (other then a api call)

Reading all the reply's I think it is not possible. I might be able to schedule a task (cron or so) to release the IP regulary

Thanks for replying 🙂

Regards,


________________________________
From: Kea-users <kea-users-bounces at lists.isc.org> on behalf of Sten Carlsen <stenc at s-carlsen.dk>
Sent: Wednesday, September 3, 2025 21:34
To: Francis Dupont <fdupont at isc.org>
Cc: Kea user's list <kea-users at lists.isc.org>
Subject: Re: [Kea-users] Expire single IP



> On 3 Sep 2025, at 18.02, Francis Dupont <fdupont at isc.org> wrote:
>
> Sten Carlsen writes:
>> If this is one address only why not give it a lifetime of max 1h? the added
>> traffic should be marginal.
>
> => I think the problem to solve does not suppose any kind of
> long/medium term anticipation so lifetimes were configured with large
> values when the client got or renewed its lease the last time...

Probably correct - but if that time was set at max 1h then it would be released at latest in 1h. The only change is that it will renew the lease more often with little effect on traffic.

>
> Regards
>
> Francis Dupont <fdupont at isc.org>

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