Paul Dwerryhouse (

Stunner is a STUN server for Unix and Unix-like operating systems. It aims to adhere to RFC 3489. Stunner is free software, released under the Free Software Foundation's General Public Licence (version 2).

The STUN protocol is used to help clients who are located behind network-address translating (NAT) routers determine the NAT method being used. It is commonly used as part of Voice-over-IP (VoIP) systems.

Stunner is currently pre-alpha software. It should not be used on production systems at this point in time.

It is known to compile and run successfully on the following platforms: Linux, Solaris, Irix, NetBSD, OpenBSD.