A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Application Design Guidelines for Traversal of Network Address Translators
Author(s) : B. Ford, et al.
Filename : draft-ford-behave-app-00.txt
Pages : 22
Date : 2005-2-15
This document defines best current practices by which application
designers can create applications that communicate reliably and
efficiently in the presence of network address translators (NAT),
particularly when the application has a need for "peer-to-peer"-style
(P2P) communication patterns in addition to traditional
client/server-style communication. There is no single NAT traversal
algorithm that will make a P2P application reliably work over all
deployed NATs. Following the guidelines described in this document,
however, allows a P2P application to work reliably over a majority of
existing NATs, as well as all future NATs that conform to the
requirements specified in companion documents. The NAT traversal
techniques described here do not require the use of special proxy or
relay protocols, do not require specific knowledge about the network
topology or the number and type of NATs in the path, and do not
require any low-level modifications to IP or transport-layer
protocols that might require special privileges on the end hosts.
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