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Re: I-D ACTION:draft-bagnulo-v6ops-6man-nat64-pb-statement-00.txt



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De: marcelo bagnulo braun <marcelo@it.uc3m.es>
Fecha: 15 de noviembre de 2007 12:47:05 GMT+01:00
Para: v6ops@ops.ietf.org
Asunto: Fwd: I-D ACTION:draft-bagnulo-v6ops-6man-nat64-pb- statement-00.txt



Hi all,

i have submitted the attached draft, which goal is basically try to define which are the requirements and the constraints of a design of an IPv6 - IPv4 translator.

the goal is to foster discussion on the nat64 solution space

comments are welcome

regards, marcelo



Inicio del mensaje reenviado:

De: Internet-Drafts@ietf.org
Fecha: 13 de noviembre de 2007 20:15:01 GMT+01:00
Para: i-d-announce@ietf.org
Asunto: I-D ACTION:draft-bagnulo-v6ops-6man-nat64-pb-statement-00.txt
Responder a: internet-drafts@ietf.org

A New Internet-Draft is available from the on-line Internet-Drafts
directories.


Title : IPv6 - IPv4 Translators (NAT64) - Problem Statement and Analysis
	Author(s)	: M. Bagnulo
	Filename	: draft-bagnulo-v6ops-6man-nat64-pb-statement-00.txt
	Pages		: 9
	Date		: 2007-11-13
	

   RFC 4966 published on July 2007 deprecates the NAT-PT tool, the
mechanism defined by the IETF to enable communications between IPv4 only nodes with IPv6 only nodes, letting the dual-stack approach as
   the preferred mechanism to enable nodes to be able to communicate
   with v6 and v4 nodes.  However, there are several reasons why the
   dual stack approach may not be adequate for a number of scenarios.
   For once, the dual-stack approach imposes the management of two
networks in a site, the v6 one and the v4 one, increasing the costs
   of using IPv6.  In addition, as IPv4 public address space is
   depleted, it will no longer possible to access to IPv4 public
addresses, making dual stack nodes even less attractive. It is then
   considered necessary to explore alternative mechanisms that enable
   communication of v6 nodes and v4 nodes, other than the deprecated
   NAT-PT.  In order to do that, the first that is needed is to
understand what capabilities are required and what constrains affect
   the design space.  The goal of this document is to state the
   different capabilities that can be required to IPv4 - IPv6
translators (hereafter called NAT64) and the constraints that affect
   the solution space.


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