Adaptive IPv4 Address Space

Document Type Active Internet-Draft (individual)
Last updated 2016-12-14
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
<Network Working Group>                                      A. Y. Chen
Internet Draft                                                 R. R. Ati
Intended status: Experimental               Avinta Communications, Inc.
Expires: June 2017
                                                      December 14, 2016

                        Adaptive IPv4 Address Space

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at

   The list of Internet-Draft Shadow Directories can be accessed at

   This Internet-Draft will expire on June 14, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors. All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   ( in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document. Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Chen, et al.            Expires June 14, 2017                  [Page 1]
Internet-Draft     IPv4 with Adaptive Address Space       December 2016


   This document describes a solution to the Internet address depletion
   issue through the use of an existing Option mechanism that is part of
   the original IPv4 protocol. This proposal, named EzIP (phonetic for
   Easy IPv4), discusses the IPv4 public address pool expansion and the
   Internet system architecture enhancement aspects. It was originated
   by a study called ExIP (Extended IPv4) analyzing the use of the first
   available octet (eight bits) in the reserved private network pools
   (10/8, 172.16/12 and 192.168/16) to achieve a moderate address space
   expansion factor of 256 by each, while maintaining their familiar
   operation characteristics. Along the way, a parallel yet similar
   effort, called EnIP (Enhanced IPv4), was discovered. EnIP fully
   utilizes the same private network pools to increase the address space
   by a factor of 17.1M with end-to-end connectivity. EzIP is a superset
   that proposes one unified format for not only encompassing the
   considerations of both, but also identifying additional capabilities
   and flexibilities. For example, EzIP may expand an IPv4 address at
   least by a factor of 256 to as high as 256M without affecting the
   existing IPv4 public address assignments, while still keeping intact
   the current private networks for the 256M case if desired. The EzIP
   is in full conformance with the IPv4 protocol, and supports not only
   both categories of connectivity, but also their interoperability. The
   traditional Internet traffic and the IoT operations may coexist
   simultaneously without perturbing their existing setups, while
   offering end-users the freedom to choose one or the other. If the
   IPv4 public pool were reorganized, the assignable pool could be
   multiplied by 512M or even up to 2B times with end-to-end
   connectivity. EzIP may be deployed as a firmware enhancement to the
   Internet edge routers or private network gateways wherever needed, or
   simply installed as an inline adjunct module between the two,
   enabling a seamless introduction. The 256M case establishes a
   spherical layer of routers providing a complete interconnection
   between the Internet and end-users. This configuration enables the
   entire current Internet and private networks characteristics to
   remain intact. These proposed interim facilities would afford IPv6
   more time to orderly reach the maturity and the availability levels
   required for delivering a long-term general service.

Chen, Ati               Expires June 14, 2017                  [Page 2]
Internet-Draft     IPv4 with Adaptive Address Space       December 2016

   Table of Contents

   1. Introduction...................................................4
Show full document text