NAT Behavioral Requirements for TCP
K. Biswas, Bryan Ford, Shyamala Sivakumar, P. Srisuresh · 2008
This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements. Distribution of this memo is unlimited. This document defines a set of requirements for NATs that handle TCP that would allow many applications, such as peer-to-peer applications and online games to work consistently. Developing NATs that meet this set of requirements will greatly increase the likelihood that these applications will function properly.