A program for monitoring a DSL connection
The Network Forensics Tool
RanMon is a program that provides you with a way to internet monitor
Get the latest version of GW Monitor here -> http://www.gwos.com/demo
URL Monitoring Plugin For Cacti
A simple packet sniffer for local networks
Visual instrument for analyze internet traffic
Is your host up or down?
BGPHist stores MP-BGP updates activity and history into a database.
Open Source Application Monitoring and Packet Tracing system
...has moved to packetpeeper.org
Build custom filter for your network based off of common communication
A simple cacti viewer for smartphones
ICMP ping for Java
This tool locks down Linux and UNIX systems.