Browse Prior Art Database

Basic Socket Interface Extensions for IPv6 (RFC3493)

IP.com Disclosure Number: IPCOM000011809D
Original Publication Date: 2003-Mar-01
Included in the Prior Art Database: 2003-Mar-18
Document File: 40 page(s) / 83K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Gilligan: AUTHOR [+5]

Abstract

The de facto standard Application Program Interface (API) for TCP/IP applications is the "sockets" interface. Although this API was developed for Unix in the early 1980s it has also been implemented on a wide variety of non-Unix systems. TCP/IP applications written using the sockets API have in the past enjoyed a high degree of portability and we would like the same portability with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 addresses, new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features required by TCP and UDP applications, including multicasting, while introducing a minimum of change into the system and providing complete compatibility for existing IPv4 applications. Additional extensions for advanced IPv6 features (raw sockets and access to the IPv6 extension headers) are defined in another document.

This text was extracted from an ASCII text file.
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Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � R. Gilligan

Request for Comments: 3493� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Intransa, Inc.

Obsoletes: 2553� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � S. Thomson

Category: Informational� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Cisco

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � J. Bound

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � J. McCann

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Hewlett-Packard

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � W. Stevens

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � February 2003

� � � � � � � � � � � � � � Basic Socket Interface Extensions for IPv6

Status of this Memo

� � This memo provides information for the Internet community.� It does

� � not specify an Internet standard of any kind.� Distribution of this

� � memo is unlimited.

Copyright Notice

� � Copyright (C) The Internet Society (2003).� All Rights Reserved.

Abstract

� � The de facto standard Application Program Interface (API) for TCP/IP

� � applications is the "sockets" interface.� Although this API was

� � developed for Unix in the early 1980s it has also been implemented on

� � a wide variety of non-Unix systems.� TCP/IP applications written

� � using the sockets API have in the past enjoyed a high degree of

� � portability and we would like the same portability with IPv6

� � applications.� But changes are required to the sockets API to support

� � IPv6 and this memo describes these changes.� These include a new

� � socket address structure to carry IPv6 addresses, new address

� � conversion functions, and some new socket options.� These extensions

� � are designed to provide access to the basic IPv6 features required by

� � TCP and UDP applications, including multicasting, while introducing a

� � minimum of change into the system and providing complete

� � compatibility for existing IPv4 applications.� Additional extensions

� � for advanced IPv6 features (raw sockets and access to the IPv6

� � extension headers) are defined in another document.

Gilligan, et al.� � � � � � � � � � � � Informational� � � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3493� � � � � � Basic Socket Interface Extensions for IPv6� February 2003

Table of Contents

� � 1.� Introduction................................................3

� � 2.� Design Considerations.......................................4

� � � � � � 2.1� What Needs to be Changed...............................4

� � � � � � 2.2� D...