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Title : Symmetric NAT Traversal using STUN
Author(s) : Y. Takeda
Filename : draft-takeda-symmetric-nat-traversal-00.txt
Pages : 24
Date : 2003-6-6
It is generally known that the binding acquisition for symmetric NATs
with STUN (Simple Traversal of UDP through NATs) protocol will not
yield a usable address for traversing symmetric NAT. The use of
symmetric RTP allows you to accompolish symmetric NAT traversal only
in situations where the other end is open to the Internet, or has a
full-cone or a restricted-cone NAT. This document proposes an
analytical method for symmetric NATs to obtain more detailed
characteristics of the symmetric NAT using STUN, and describes how we
can establish a peer-to-peer UDP connection even in situations where
NATs (including symmetric NATs) are present at both ends.
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