Deprecation of MIB Module NAT-MIB: Managed Objects for Network Address Translators (NATs)
RFC 7658

Document Type RFC - Proposed Standard (October 2015; No errata)
Obsoletes RFC 4008
Last updated 2015-10-27
Replaces draft-ietf-behave-nat-mib
Stream IETF
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IESG IESG state RFC 7658 (Proposed Standard)
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Internet Engineering Task Force (IETF)                      S. Perreault
Request for Comments: 7658                           Jive Communications
Obsoletes: 4008                                                  T. Tsou
Category: Standards Track                            Huawei Technologies
ISSN: 2070-1721                                             S. Sivakumar
                                                           Cisco Systems
                                                               T. Taylor
                                                    PT Taylor Consulting
                                                            October 2015

                   Deprecation of MIB Module NAT-MIB:
         Managed Objects for Network Address Translators (NATs)

Abstract

   This memo deprecates MIB module NAT-MIB, a portion of the Management
   Information Base (MIB) previously defined in RFC 4008 for devices
   implementing Network Address Translator (NAT) function.  A companion
   document defines a new version, NATV2-MIB, which responds to
   deficiencies found in module NAT-MIB and adds new capabilities.

   This document obsoletes RFC 4008.  All MIB objects specified in RFC
   4008 are included in this version unchanged with only the STATUS
   changed to deprecated.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7658.

Perreault, et al.            Standards Track                    [Page 1]
RFC 7658                Deprecation of NAT-MIB v1           October 2015

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  The Internet-Standard Management Framework  . . . . . . . . .   3
   3.  Motivation For Deprecating NAT-MIB  . . . . . . . . . . . . .   3
     3.1.  Deprecated Features . . . . . . . . . . . . . . . . . . .   3
     3.2.  Desirable New Features  . . . . . . . . . . . . . . . . .   4
   4.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  60
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  60
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  60
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  60
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  61
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  62

1.  Introduction

   This memo deprecates a portion of the Management Information Base
   (MIB), MIB module NAT-MIB, for devices implementing the Network
   Address Translator (NAT) function.  New implementations are
   encouraged to base themselves upon the second version of this MIB
   module, NATV2-MIB, defined in [RFC7659].  NAT types and their
   characteristics are defined in [RFC2663].  Traditional NAT function,
   in particular, is defined in [RFC3022].  Neither NAT-MIB nor
   NATV2-MIB addresses firewall functions, and neither can be used for
   configuring or monitoring them.

   Section 2 provides references to the Simple Network Management
   Protocol (SNMP) management framework, which was used as the basis for
   the original MIB module definition and its deprecation.  Section 3
   provides motivation for the deprecation of module NAT-MIB and its
   replacement by module NATV2-MIB.  Section 4 has the complete NAT-MIB
   module definition, with the STATUS of all objects changed to

Perreault, et al.            Standards Track                    [Page 2]
RFC 7658                Deprecation of NAT-MIB v1           October 2015
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