RFC 2133 · INFORMATIONAL · 1997

Basic Socket Interface Extensions for IPv6

Overview

RFC 2133, “Basic Socket Interface Extensions for IPv6”, is an Informational document published in April 1997 by R. Gilligan, S. Thomson, J. Bound, W. Stevens. It has been obsoleted by RFC 2553 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

This memo defines a set of extensions to the socket interface to support the larger address size and new features of IPv6. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

Abstract as published in the RFC, via rfc-editor.org.

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

Read this RFC

The canonical text of RFC 2133 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Obsoleted by
RFC 2553
Other RFCs from 1997

Who Is Online

In total there are 80 users online: 0 registered, 73 guests and 7 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372