The IESG has approved the following document: - 'Diameter Network Address and Port Translation Control Application' (draft-ietf-dime-nat-control-17.txt) as Proposed Standard This document is the product of the Diameter Maintenance and Extensions Working Group. The IESG contact persons are Benoit Claise and Ronald Bonica. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-dime-nat-control/ Technical Summary This document describes the framework, messages, and procedures for the Diameter Network address and port translation Control Application. This Diameter application allows per endpoint control of Network Address Translators and Network Address and Port Translators, which are added to networks to cope with IPv4-address space completion. This Diameter application allows external devices to configure and manage a Network Address Translator device - expanding the existing Diameter-based AAA and policy control capabilities with a Network Address Translators and Network Address and Port Translators control component. These external devices can be network elements in the data plane such as a Network Access Server, or can be more centralized control plane devices such as AAA- servers. This Diameter application establishes a context to commonly identify and manage endpoints on a gateway or server, and a Network Address Translator and Network Address and Port Translator device. This includes, for example, the control of the total number of Network Address Translator bindings allowed or the allocation of a specific Network Address Translator binding for a particular endpoint. In addition, it allows Network Address Translator devices to provide information relevant to accounting purposes. Working Group Summary The document spent well over a year in the WG and has had an intensive review in the WG. However, the authors actively kept the document progressing and improving. The document is a result of collaborative WG work. Document Quality There is currently no publicly announced implementations of the protocol. The document itself is solid, well written and in places goes into level of details not often seen in Diameter Application describing documents. Personnel Jouni Korhonen is the Document Shepherd for this document. Dan Romascanu is the Responsible Area Director.