A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : PCP BIND Operation
Author : Aijun Wang
Filename : draft-wang-pcp-bind-operation-00.txt
Pages : 16
Date : 2014-07-03
Abstract:
Port Control Protocol[PCP, RFC6887] describes two opcodes between
PCP client and PCP server: PCP map opcode and PCP peer opcode. These
two opcodes are used mainly for the establishment of map table in
NAT devices, to let the incoming packet pass through the NAT devices,
reach to the server behind it (map opcode); or build the required
map table explicitly in NAT devices (peer opcode). These opcodes are
enough for the client-server communication model in general NAT
environment, but for client-client communication model, especially
that in symmetric NAT environment or in situation that two
communication hosts are in different address family, there must
exists one relay device, which act the same as PCP server, to
forward the communication data. To control the behavior of relay
device (similar as PCP server), build the communication channel
between two ends via it and open its data forward capability to the
third-party partner, it is needed to define one new opcode for PCP
protocol.
The PCP BIND opcode will bind two communication channels which are
ended at PCP server together and make the communication between two
hosts behind the symmetric NAT environment, or that between two
hosts belong to different address family possible. Such solution is
simpler than the current procedures used by TURN.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-wang-pcp-bind-operation/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-wang-pcp-bind-operation-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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