Definitions of Managed Objects for Network Address Translators (NATs)
RFC 7659

Document Type RFC - Proposed Standard (October 2015; No errata)
Was draft-perrault-behave-natv2-mib (individual in tsv area)
Last updated 2015-10-27
Replaces draft-ietf-behave-nat-mib
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Internet Engineering Task Force (IETF)                      S. Perreault
Request for Comments: 7659                           Jive Communications
Category: Standards Track                                        T. Tsou
ISSN: 2070-1721                                      Huawei Technologies
                                                            S. Sivakumar
                                                           Cisco Systems
                                                               T. Taylor
                                                    PT Taylor Consulting
                                                            October 2015

 Definitions of Managed Objects for Network Address Translators (NATs)

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for devices implementing the Network Address Translator (NAT)
   function.  The new MIB module defined in this document, NATV2-MIB, is
   intended to replace module NAT-MIB (RFC 4008).  NATV2-MIB is not
   backwards compatible with NAT-MIB, for reasons given in the text of
   this document.  A companion document deprecates all objects in NAT-
   MIB.  NATV2-MIB can be used for the monitoring of NAT instances on a
   device capable of NAT function.  Compliance levels are defined for
   three application scenarios: basic NAT, pooled NAT, and
   carrier-grade NAT (CGN).

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/rfc7659.

Perreault, et al.            Standards Track                    [Page 1]
RFC 7659                         NAT MIB                    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
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   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   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.  The Internet-Standard Management Framework  . . . . . . . . .   3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Content Provided by the NATV2-MIB Module  . . . . . . . .   5
       3.1.1.  Configuration Data  . . . . . . . . . . . . . . . . .   5
       3.1.2.  Notifications . . . . . . . . . . . . . . . . . . . .   6
       3.1.3.  State Information . . . . . . . . . . . . . . . . . .   9
       3.1.4.  Statistics  . . . . . . . . . . . . . . . . . . . . .   9
     3.2.  Outline of MIB Module Organization  . . . . . . . . . . .  12
     3.3.  Detailed MIB Module Walk-Through  . . . . . . . . . . . .  13
       3.3.1.  Textual Conventions . . . . . . . . . . . . . . . . .  13
       3.3.2.  Notifications . . . . . . . . . . . . . . . . . . . .  14
       3.3.3.  The Subscriber Table: natv2SubscriberTable  . . . . .  14
       3.3.4.  The Instance Table: natv2InstanceTable  . . . . . . .  15
       3.3.5.  The Protocol Table: natv2ProtocolTable  . . . . . . .  15
       3.3.6.  The Address Pool Table: natv2PoolTable  . . . . . . .  16
       3.3.7.  The Address Pool Address Range Table:
               natv2PoolRangeTable . . . . . . . . . . . . . . . . .  17
       3.3.8.  The Address Map Table: natv2AddressMapTable . . . . .  17
       3.3.9.  The Port Map Table: natv2PortMapTable . . . . . . . .  17
     3.4.  Conformance: Three Application Scenarios  . . . . . . . .  18
   4.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .  19
   5.  Operational and Management Considerations . . . . . . . . . .  74
     5.1.  Configuration Requirements  . . . . . . . . . . . . . . .  74
     5.2.  Transition from and Coexistence with NAT-MIB (RFC 4008) .  76
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  78
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  81
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  81
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