ZMap is a fast single packet network scanner for network surveys
Cross-platform multi-protocol VPN software
A Swiss army knife for your daily Linux network plumbing
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Nagios Open Source network monitoring software - The Standard In ITM
Very fast network stress tool
Snare Enterprise: bit.ly/Snare-Trial
The Internet of Things
netflow collecting and processing tools
fast data movement over high-bandwidth networks
Hierarchical Cluster Engine project
IoT Device, Gateway, Server platform
NetStress is a DDoS and network stress testing tool.
vMotion Detector for Linux & Windows Platforms
Reports IP addresses via Email or MySQL