About STUNTMAN is an open source implementation of the STUN protocol (Session Traversal Utilities for NAT) as specified in RFCs 5389, 5769, and 5780. It also includes backwards compatibility for RFC 3489. Source code distribution includes a high performance STUN server, a client application, and a set of code libraries for implementing a STUN client within an application. The current C++ code base compiles using gcc/g++ for most UNIX distributions including Linux, MacOS, BSD, and Solaris. A Windows port via Cygwin is available now. Stuntman is open source software distrubted under the Apache 2.0 License. Download Latest stable release: version 1.2.7 Unix/Linux sources: stunserver-1.2.7.tgz (click here) Win32 binaries: stunserver_win32_1_2_5a.zip (click here - redirects to SourceForge) You may also peruse the source files individually, access previous versions, file bugs, and find other resources at the project's GitHub site. Once you download and unpack the source code package, open the README file included in the root of the distribution for instructions on how to compile. You may need to download the Boost library prior to compiling. Public STUN server A STUN service hosting the Stuntman code is being run at stun.stunprotocol.org (UDP and TCP ports 3478).