RFC 3489, STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs), J. Rosenberg, J. Weinberger, C. Huitema, R. Mahy, The Internet Society (March 2003)
RFC 5389, Session Traversal Utilities for NAT (STUN), J. Rosenberg, R. Mahy, P. Matthews, D. Wing, The Internet Society (October 2008)
