Hooks calls to sockets in dynamically linked programs
Create nested tunnels through HTTP proxies
Robust and flexible VPN network tunnelling
SimpleTester
A dead simple VPN
A multi-platform universal log collector and forwarder
A simple yet powerful open source VPN solution
Various TCP/IP servers, clients and network management tools
A simple C++ socket library used to make socket programming tolerable.
C++ SIP stack based on Chrome source code