IP Tunnel MIB
RFC 4087

 
Document Type RFC - Proposed Standard (June 2005; No errata)
Obsoletes RFC 2667
Last updated 2013-03-02
Stream IETF
Formats plain text pdf html
Stream WG state (None)
Consensus Unknown
Document shepherd No shepherd assigned
IESG IESG state RFC 4087 (Proposed Standard)
Telechat date
Responsible AD Margaret Wasserman
Send notices to bob.hinden@nokia.com, brian@innovationslab.net, margaret@thingmagic.com

Email authors IPR References Referenced by Nits Search lists

Network Working Group                                          D. Thaler
Request for Comments: 4087                                     Microsoft
Obsoletes: 2667                                                June 2005
Category: Standards Track

                             IP Tunnel MIB

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This memo defines a Management Information Base (MIB) module for use
   with network management protocols in the Internet community.  In
   particular, it describes managed objects used for managing tunnels of
   any type over IPv4 and IPv6 networks.  Extension MIB modules may be
   designed for managing protocol-specific objects.  Likewise, extension
   MIB modules may be designed for managing security-specific objects.
   This MIB module does not support tunnels over non-IP networks.
   Management of such tunnels may be supported by other MIB modules.
   This memo obsoletes RFC 2667.

1.  Introduction

   Over the past several years, there has been a number of "tunneling"
   protocols specified by the IETF (see [RFC1241] for an early
   discussion of the model and examples).  This document describes a
   Management Information Base (MIB) module used for managing tunnels of
   any type over IPv4 and IPv6 networks, including Generic Routing
   Encapsulation (GRE) [RFC1701,RFC1702], IP-in-IP [RFC2003], Minimal
   Encapsulation [RFC2004], Layer 2 Tunneling Protocol (L2TP) [RFC2661],
   Point-to-Point Tunneling Protocol (PPTP) [RFC2637], Layer 2
   Forwarding (L2F) [RFC2341], UDP (e.g., [RFC1234]), Ascend Tunnel
   Management Protocol (ATMP) [RFC2107], and IPv6-in-IPv4 [RFC2893]
   tunnels, among others.

Thaler                      Standards Track                     [Page 1]
RFC 4087                     IP Tunnel MIB                     June 2005

   Extension MIB modules may be designed for managing protocol-specific
   objects.  Likewise, extension MIB modules may be designed for
   managing security-specific objects (e.g., IPsec [RFC2401]), and
   traffic conditioner [RFC2474] objects.

2.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

3.  Overview

   This MIB module contains two current tables and one deprecated table.
   The current tables are:

   o  the Tunnel Interface Table, containing information on the tunnels
      known to a router; and

   o  the Tunnel Inet Config Table, which can be used for dynamic
      creation of tunnels, and also provides a mapping from endpoint
      addresses to the current interface index value.

   The version of this MIB module that appeared in RFC 2667 contained
   the Tunnel Config Table, which mapped IPv4 endpoint addresses to
   interface indexes.  It is now deprecated in favor of the Tunnel Inet
   Config Table.

3.1.  Relationship to the Interfaces MIB

   This section clarifies the relationship of this MIB module to the
   Interfaces MIB [RFC2863].  Several areas of correlation are addressed
   in the following subsections.  The implementor is referred to the
   Interfaces MIB document in order to understand the general intent of
   these areas.

Thaler                      Standards Track                     [Page 2]
RFC 4087                     IP Tunnel MIB                     June 2005

3.1.1.  Layering Model

   Each logical interface (physical or virtual) has an ifEntry in the
   Interfaces MIB [RFC2863].  Tunnels are handled by creating a logical
   interface (ifEntry) for each tunnel.  These are then correlated,
   using the ifStack table of the Interfaces MIB, to those interfaces on
   which the local IPv4 or IPv6 addresses of the tunnels are configured.
Show full document text