[Dime] I-D Action:draft-ietf-dime-nat-control-02.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Diameter Maintenance and Extensions Working Group of the IETF.


	Title           : Diameter Network Address and Port Translation Control Application
	Author(s)       : F. Brockners, et al.
	Filename        : draft-ietf-dime-nat-control-02.txt
	Pages           : 40
	Date            : 2010-03-07

This document describes the framework, messages, and procedures for
the Diameter Network Address and Port Translation Control Application
(DNCA), allowing for per-endpoint control of large scale NAT/NAPT
devices, which are put in place to cope with IPv4-address space
completion.  The DNCA allows external devices to configure and manage
a NAT device - expanding the existing Diameter-based AAA and policy
control capabilities with a NAT/NAPT control component.  These
external devices can be network elements in the data plane such as a
Network Access Server (NAS), or can be more centralized control plane
devices such as AAA-servers.  DNCA establishes a context to commonly
identify and manage endpoints on a gateway or server, and a large
scale NAPT/NAT device.  This includes, for example, the control of
the total number of NAT-bindings allowed or the allocation of a
specific NAT-binding for a particular endpoint.  In addition, it
allows large scale NAT devices to provide information relevant to
accounting purposes.

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