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IP Header Compression over PPP (RFC2509)

IP.com Disclosure Number: IPCOM000003092D
Original Publication Date: 1999-Feb-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 8 page(s) / 17K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Engan: AUTHOR [+3]

Abstract

This document describes an option for negotiating the use of header compression on IP datagrams transmitted over the Point-to-Point Protocol [RFC1661]. It defines extensions to the PPP Control Protocols for IPv4 and IPv6 [RFC1332, RFC2023]. Header compression may be applied to IPv4 and IPv6 datagrams in combination with TCP, UDP and RTP transport protocols as specified in [IPHC] and [CRTP].

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 16% of the total text.

Network Working Group

Request for Comments: 2509 M. Engan

Category: Standards Track Effnet

S. Casner

Cisco Systems

C. Bormann

Universitaet Bremen TZI

February 1999

IP Header Compression over PPP

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 (1999). All Rights Reserved.

Abstract

This document describes an option for negotiating the use of header

compression on IP datagrams transmitted over the Point-to-Point

Protocol [RFC1661]. It defines extensions to the PPP Control

Protocols for IPv4 and IPv6 [RFC1332, RFC2023]. Header compression

may be applied to IPv4 and IPv6 datagrams in combination with TCP,

UDP and RTP transport protocols as specified in [IPHC] and [CRTP].

1. Introduction

The IP Header Compression (IPHC) defined in [IPHC] may be used for

compression of both IPv4 and IPv6 datagrams or packets encapsulated

with multiple IP headers. IPHC is also capable of compressing both

TCP and UDP transport protocol headers. The IP/UDP/RTP header

compression defined in [CRTP] fits within the framework defined by

IPHC so that it may also be applied to both IPv4 and IPv6 packets.

In order to establish compression of IP datagrams sent over a PPP

link each end of the link must agree on a set of configuration

parameters for the compression. The process of negotiating link

parameters for network layer protocols is handled in PPP by a family

of network control protocols (NCPs). Since there are separate NCPs

for IPv4 and IPv6, this document defines configuration options to be

used in both NCPs to negotiate parameters for the compression scheme.

IPHC relies on the link layer's ability to indicate the types of

datagrams carried in the link layer frames. In this document nine new

types for the PPP Data Link Layer Protocol Field are defined along

with their meaning.

In general, header compression schemes that use delta encoding of

compresse...