RFC 2317 · BEST CURRENT PRACTICE · 1998
SUN · 14 JUN 2026
Classless IN-ADDR.ARPA delegation
Overview
RFC 2317, “Classless IN-ADDR.ARPA delegation”, is a Best Current Practice document published in March 1998 by H. Eidnes, G. de Groot, P. Vixie. The canonical text is published by the RFC Editor.
Abstract
This document describes a way to do IN-ADDR.ARPA delegation on non-octet boundaries for address spaces covering fewer than 256 addresses. 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.
Read this RFC
The canonical text of RFC 2317 is hosted at rfc-editor.org. Available in TXT,HTML.
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