Additional Definitions of Managed Objects for Network Address Translators (NAT)
draft-ietf-behave-nat-mib-00

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Document Type Active Internet-Draft (behave WG)
Last updated 2012-04-17
Replaces draft-perreault-opsawg-natmib-bis
Replaced by RFC 7658, RFC 7659, RFC 7659, RFC 7658
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Network Working Group                                       S. Perreault
Internet-Draft                                                  Viagenie
Intended status: Standards Track                                 T. Tsou
Expires: October 19, 2012                      Huawei Technologies (USA)
                                                            S. Sivakumar
                                                           Cisco Systems
                                                          April 17, 2012

     Additional Definitions of Managed Objects for Network Address
                           Translators (NAT)
                      draft-ietf-behave-nat-mib-00

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for devices implementing Network Address Translator (NAT) function.
   This MIB module may be used for monitoring of a device capable of NAT
   function.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on October 19, 2012.

Copyright Notice

   Copyright (c) 2012 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
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   (http://trustee.ietf.org/license-info) in effect on the date of
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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.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . . 15
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 15
   6.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
     6.1.  Normative References . . . . . . . . . . . . . . . . . . . 16
     6.2.  Informative References . . . . . . . . . . . . . . . . . . 16
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 16

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1.  Introduction

   [RFC4008] defines some objects for managing network address
   translators (NATs).  Current operational practice often requires
   additional objects, in particular for enterprise and Internet service
   provider (ISP) deployments.  This document defines those additional
   objects.

   This module is designed to be completely independent from [RFC4008].
   A NAT implementation could be managed using this module, the one from
   [RFC4008], or both.

   Note:  "CGN" features are currently left out of this MIB.  Such
      features include anything related to "subscribers": per-subscriber
      counters, limits, etc.  They will either be added to this draft or
      will be specified in a separate draft.  Stay tuned.

2.  Overview

   New features in this module are as follows:

   Counters:  Many new counters are introduced.  Most of them are
      available in two variants: global and per-transport protocol.

   Limits:  A few limits on the quantity of state data stored by the NAT
      device.  Some of them can trigger notifications.

   Address+Port Pools:  Pools of external addresses and ports are often
      used in enterprise and ISP settings.  Pools are listed in a table,
      each with its range of addresses and ports.  It is possible to
      inspect each pool's usage, to set limits, and to receive
      notifications when thresholds are crossed.

   Address Mappings:  NATs that have an "IP address pooling" behavior of
      "Paired" [RFC4787] maintain a mapping from internal address to
      external address.  This module allows inspection of this mapping
      table.

3.  Definitions

   This MIB module IMPORTs objects from [RFC2578], [RFC2579], and
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