Hi Kevin,

I thought there was already an open or closed issue about this, but I
didn't find one...

Thank you,

Darren Ankney

On Sun, Oct 22, 2023 at 10:32 AM Kevin P. Fleming
<lists.kea-us...@kevin.km6g.us> wrote:
>
> On Sun, Oct 22, 2023, at 10:17, Darren Ankney wrote:
> > It then goes on to print details about the existing lease.  You could
> > possibly use the flex-id hook to overcome this (in certain situations
> > where there is something else to use as the identifier such as
> > circuit-id).  Alternatively, you could use the API to delete the lease
> > for 192.168.88.192 soon after granting so that it is free for your
> > other interface.  However, this could lead to strangeness should the
> > original interface try to renew (because the lease will no longer be
> > found and renewal will fail).  If it's possible, it would be best to
> > assign a separate address for each interface on the system.
>
> Thanks, at least I understand why this is happening now.
>
> I've tried other ways to address this on the client side (trying to use a 
> stable DUID or CID to have Kea think it's the same client regardless of 
> interface), but that doesn't seem to work out well either.
>
> The primary problem I'm solving here is that this client makes a lot of 
> outbound SSH connections to other machines on the network, and in order to 
> speed these up SSH persistent control channels are used. If the client 
> attempts to re-establish one of these connections after its IP address has 
> changed, SSH will just hang for quite a long time. Clearly the SSH client 
> could handle this better, but having a stable IP address is a more 
> straightforward fix.
>
> If there's no ticket open as a feature request for Kea to provide a method 
> for the existing leases to be ignored when a new REQUEST comes in, I'll 
> happily create one.
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