Using OMAPI to release a DHCP lease on a failover pair

Patrick Trapp ptrapp at
Thu Jul 30 20:07:39 UTC 2020

Interesting. You would only have two available addresses, right? The network address and the broadcast address? Which one does the device answer to?
From: dhcp-users <dhcp-users-bounces at> on behalf of sthaug at <sthaug at>
Sent: Thursday, July 30, 2020 2:53 PM
To: dhcp-users at <dhcp-users at>; bill at <bill at>
Subject: Re: Using OMAPI to release a DHCP lease on a failover pair

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> I don't know what your conf or your network looks like, but an IPv4
> subnet requires
> at lease four addresses:
>  network address - unusable
>  available
>  available
>  broadcast address
> This may be the problem.  Make the pool larger.

We have used ISC DHCP with /31 networks for quite a while. Works fine.
Only one address available for the DHCP client, obviously.

Steinar Haug, Nethelp consulting, sthaug at
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