RFC 4632 · BEST CURRENT PRACTICE · 2006

Classless Inter-domain Routing : The Internet Address Assignment and Aggregation Plan

Overview

RFC 4632, “Classless Inter-domain Routing : The Internet Address Assignment and Aggregation Plan”, is a Best Current Practice document published in August 2006 by V. Fuller, T. Li. It obsoletes RFC 1519. The canonical text is published by the RFC Editor.

Abstract

This memo discusses the strategy for address assignment of the existing 32-bit IPv4 address space with a view toward conserving the address space and limiting the growth rate of global routing state. This document obsoletes the original Classless Inter-domain Routing (CIDR) spec in RFC 1519, with changes made both to clarify the concepts it introduced and, after more than twelve years, to update the Internet community on the results of deploying the technology described. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.

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

What “Best Current Practice” means

Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.

Read this RFC

The canonical text of RFC 4632 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC obsoletes
RFC 1519
Other RFCs from 2006

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