TPCAT is based upon pcapdiff by the EFF. TPCAT will analyze two packet captures (taken on each side of the firewall as an example) and report any packets that were seen on the source capture but didn’t make it to the dest. See docs for info.
Project Description:
Tk-Cerber is a client/server software that aims towards ease-of-use of Linux's QoS capabilities.
It is written in Perl for the server side and Perl/Tk for the client side.
Platform: GNU/Linux
Traffic Control is a Linux toolbox to control squid, NAT, and other
services traffic limits. TF uses Linux iptables to count traffic.
This utility consists of two parts. The first is server side
(written in Perl) and the second part is the interface.