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Status:

BEST CURRENT PRACTICE

Updates:

RFC 5735

Authors:

J. Weil
V. Kuarsingh
C. Donley
C. Liljenstolpe
M. Azinger

Stream:

IETF

Source:

NON WORKING GROUP

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC6598

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Other actions:Submit Errata  | Find IPR Disclosures from the IETF  | View History of RFC 6598

Abstract

This document requests the allocation of an IPv4 /10 address block tobe used as Shared Address Space to accommodate the needs of Carrier-Grade NAT (CGN) devices. It is anticipated that Service Providerswill use this Shared Address Space to number the interfaces thatconnect CGN devices to Customer Premises Equipment (CPE).

Shared Address Space is distinct from RFC 1918 private address spacebecause it is intended for use on Service Provider networks.However, it may be used in a manner similar to RFC 1918 privateaddress space on routing equipment that is able to do addresstranslation across router interfaces when the addresses are identicalon two different interfaces. Details are provided in the text ofthis document.

This document details the allocation of an additional special-useIPv4 address block and updates RFC 5735. This memo documents an Internet Best Current Practice.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.