add/change/delete dhcpd.conf entries

Pieter Donche Pieter.Donche at
Tue Dec 9 09:19:11 PST 2008

In a DHCP server managing fixed IP addresses, one needs to make changes
often: new people need their Mac address given a IP addres, people 
leaving need to be deleted, people changing an old for a new computer need 
a Mac address change for the same IP, etc...

All this information is recorded in the /usr/local/etc/dhcpd.conf file.
I know, there is the omapi command shell (/usr/local/bin/omshell) but 
as far as I can see, you can only use it interactively. Or am I wrong?

I would love to have a simple command line tool that allows you 
to make changes to your dhcpd.conf file without needing to use an
editor or omapi.

e.g. for a new entry, something like:
# dhcpdmgr -A -c "John.Adams PC" -i "00:34:1A:23:4A:0F" 
which would add IP in subnet 175.134.3 for mac address
00:34:1A:23:4A:0F with a comment "John.Adams PC"

and with other options for delete (-D), make changes to comment, IP 
or Mac, etc...

Does anyone have such a command line tool?

With that command line tool one can easily make a wrapper script,
presenting you with a menu of frequent operations, and with extensive 
checking of your input data. I use such a wrapper script, making use of 
Solaris pntadm (DHCP network table management utility) command line tool.

More information about the freebsd-questions mailing list