High performance, production quality STUN server and client library
Snare Enterprise: bit.ly/Snare-Trial
Makes it easier to resolve TCP/IP connection errors.
Java SSH API
continuation of the famous proxychains project by netcreature
DSL for writing communication benchmarks
An Open Source POWERLINK network configuration toolkit
A fast cross-platform FTP client
TACACS+ server for network devices
The open source grid computing solution
Live DVD with CORE network simulator
Middleware for distributed applications