[Kea-users] Kea-Lease documentation

[Darren Ankney]

In kea that is handled periodically by kea-lfc (https://kea.readthedocs.io/en/kea-2.2.0/man/kea-lfc.8.html).  Kea executes this process periodically, but you can run it yourself as well, if you like.

> On Dec 22, 2022, at 5:33 AM, Kraishak Mahtha <kraishak.edu at gmail.com> wrote:
> 
> Hi Marcin,
> 
> Thanks for the quick response and sharing the information and clarifying my doubts, but I do have some more doubts even after changing the scope defined in the config and restarting the service the lease file still has some old range entries generally in ISC DHCP if there is a change in range and after the restart, it erases the out of range entries from a lease file 
> so...
> And can I get any official documentation reference regarding this flow or explanation?
> 
> Thanks 
> Kraishak
> 
> On Thu, Dec 22, 2022 at 3:39 PM Marcin Siodelski <marcin at isc.org <mailto:marcin at isc.org>> wrote:
>> On 22.12.2022 10:52, Kraishak Mahtha wrote:
>> > Hi All,
>> > 
>> > I am trying to understand the kea-lease file format and I came across 
>> > the option state where it decides the lease state
>> > To my understanding, the state 0 indicates an active lease
>> > and 2 indicates the expiry but sometimes I see the binding state as 1 
>> > but not sure what that means, and I am unable to get any official 
>> > documentation regarding this info. Not sure if we have only 0, 1, 2 as 
>> > states, and more.....
>> > Does anyone have any idea or any referenced document where I can get 
>> > these options' explanations and validations like what is the max 
>> > value(for other kea-options) that it can take and so on similar things
>> > 
>> > Any help would be appreciated
>> > Thanks
>> > Kraishak
>> > 
>> 
>> The lease state of 1 means "declined lease". A client declines the lease 
>> when it discovers that someone else is using the leased address.
>> 
>> Kea currently defines only three states for leases: "default" (or 
>> "active"), "declined" and "expired-reclaimed". The last state marks the 
>> leases that have expired and the server processed them during routine 
>> reclamation. In particular, a reclaimed lease has DDNS state cleared. 
>> Such a lease is available for new allocation.
>> 
>> Kind Regards,
>> 
>> Marcin Siodelski
>> Sr. Software Engineer
>> ISC
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