dhcpd: any way to check dhcp pool status?

Question

Once dhcpd (IPv4) is started, is there any way to check its internal pool status? e.g how many addresses are available?

I checked man(8) dhcpd, there's no signals/files available for that info.

Answer 1

On Ubuntu there is the file /var/lib/dhcp/dhcpd.leases, but it is rather verbose and you probably need a little script if you want more high level statistics. I am unaware of existing tools to do this.

There is a separate man page for this file man dhcpd.leases describing the database format.

Answer 2

Checking status of leases is easiest with analysis tool.

http://dhcpd-pools.sourceforge.net/