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RIP Version 2 (RFC2453)

IP.com Disclosure Number: IPCOM000003031D
Original Publication Date: 1998-Nov-01
Included in the Prior Art Database: 2019-Feb-11
Document File: 39 page(s) / 57K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Malkin: AUTHOR

Related Documents

10.17487/RFC2453: DOI

Abstract

This document specifies an extension of the Routing Information Protocol (RIP) to expand the amount of useful information carried in RIP messages and to add a measure of security. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group G. Malkin Request for Comments: 2453 Bay Networks Obsoletes: 1723, 1388 November 1998 STD: 56 Category: Standards Track

RIP Version 2

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 (1998). All Rights Reserved.

Abstract

This document specifies an extension of the Routing Information Protocol (RIP), as defined in [1], to expand the amount of useful information carried in RIP messages and to add a measure of security.

A companion document will define the SNMP MIB objects for RIP-2 [2]. An additional document will define cryptographic security improvements for RIP-2 [3].

Acknowledgements

I would like to thank the IETF RIP Working Group for their help in improving the RIP-2 protocol. Much of the text for the background discussions about distance vector protocols and some of the descriptions of the operation of RIP were taken from "Routing Information Protocol" by C. Hedrick [1]. Some of the final editing on the document was done by Scott Bradner.

Malkin Standards Track [Page 1]

RFC 2453 RIP Version 2 November 1998

Table of Contents

1. Justification . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Current RIP . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Basic Protocol . . . . . . . . . . . . . . . . . . . . . . . . 3 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 3 3.2 Limitations of the Protocol . . . . . . . . . . . . . . . . 5 3.3. Organization of this document . . . . . . . . . . . . . . . 6 3.4 Distance Vector Algorithms . . . . . . . . . . . . . . . . . 6 3.4.1 Dealing with changes in topology . . . . . . . . . . . . 12 3.4.2 Preventing instability . . . . . . . . . . . . . . . . . 13 3.4.3 Split horizon . . . . . . . . . . . . . . . . . . . . . . 15 3.4.4 Triggered updates . . . . . . . . . . . . . . . . . . . . 17 3.5 Protocol Specification . . . . . . . . . . . . . . . . . . 18 3.6 Message Format . . . . . . . . . . . . . . . . . . . . . . . 20 3.7 Addressing Considerations . . . . . . . . . . . . . . . . . 22 3.8 Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.9 Input Processing . . . . . . . . . . . . . . . . . . . . . . 25 3.9.1 Request Messages . . . . . . . . . . . . . . . . . . . . 25 3.9.2 Response Messages . . . . . . . . . . . . . . . . . . . . 26 3.10 Output Processing . . . . . . . . . . . . . . . . . . . . . 28 3.10.1 Triggered Updates . . . . . . . . . . . . . . . . . . . . 29 3.10.2 Generating Response Messages. . . . . . . . . . . . . . . 30 4. Protocol Extensions . . . . . . . . . . . . . . . . . . . . . 31 4.1 Authentication . . . . . . . . . . . . . . . . . . . . . . . 31 4.2 Route Tag . . . . . . ....

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