Classless Inter-domain Routing : The Internet Address Assignment and Aggregation Plan
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.
What “Best Current Practice” means
Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.
The canonical text of RFC 4632 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 4631 Link Management Protocol Management Information Base
- RFC 4633 Experiment in Long-Term Suspensions From Internet Engineering Task Force Mailing Lists
- RFC 4630 Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List Profile
- RFC 4634 US Secure Hash Algorithms
- RFC 4635 HMAC SHA TSIG Algorithm Identifiers
- RFC 4636 Foreign Agent Error Extension for Mobile IPv4
- RFC 4627 The application/json Media Type for JavaScript Object Notation
- RFC 4626 MIB for Fibre Channel's Fabric Shortest Path First Protocol