Add the plog an IP Filter log parse utility that summarizes ipmon
output into a tablular form.

I have been using this tool in various forms on my IP Filter firewalls
for almost twenty years. Maybe someone else might find it useful too.

Description from http://www.antibozo.net/ogata/webtools/:

plog is a parser for the logged output of the ipmon utility that is part
of the excellent IP-Filter packet-filtering and NAT package written and
maintained by Darren Reed. plog translates the somewhat garbled output
from ipmon into a report that aids analysis of your firewall traffic.
The current version number is 0.10.