Restund is a modular Stun/turn server whose main design revolves around the lightweight core and the extended functionality of the server module. Supports UDP and TCP, as well as http://www.aliyun.com/zixun/aggregation/9485.html ">ipv6 and IPv4. Supported modules include: STUN, TURN, MySQL database, System log, and status monitoring.
About stun
STUN (simple traversal for UDP over NATs) is a network protocol that allows clients located after Nat (or multiple NAT) to find their own public network addresses. Find out what type of nat you are in and the Internet port that the NAT binds to a local port. This information is used to establish UDP traffic between two hosts that are both behind the NAT router.
Restund 0.4.1 is a maintenance version that improves the nonce processing capabilities.
Software Information: http://www.creytiv.com/restund.html
Download Address: http://www.creytiv.com/pub/restund-0.4.1.tar.gz