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RFC 6886
Title: NAT Port Mapping Protocol (NAT-PMP)
Author: S. Cheshire, M. Krochmal
Status: Informational
Stream: Independent
Date: April 2013
Mailbox: cheshire@apple.com,
marc@apple.com
Pages: 33
Characters: 87897
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-cheshire-nat-pmp-07.txt
URL: http://www.rfc-editor.org/rfc/rfc6886.txt
This document describes a protocol for automating the process of
creating Network Address Translation (NAT) port mappings. Included
in the protocol is a method for retrieving the external IPv4 address
of a NAT gateway, thus allowing a client to make its external IPv4
address and port known to peers that may wish to communicate with it.
>From 2005 onwards, this protocol was implemented in Apple products
including Mac OS X, Bonjour for Windows, and AirPort wireless base
stations. In 2013, NAT Port Mapping Protocol (NAT-PMP) was
superseded by the IETF Standards Track RFC "Port Control Protocol
(PCP)", which builds on NAT-PMP and uses a compatible packet format,
but adds a number of significant enhancements.
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