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RFC 7596: Lightweight 4over6: An Extension to the Dual-Stack Lite Architecture

In plain English — editorial summary, not part of the RFC

Dual-Stack Lite (DS-Lite) (RFC 6333) describes an architecture for transporting IPv4 packets over an IPv6 network. This document specifies an extension to DS-Lite called "Lightweight 4over6", which moves the Network Address and Port Translation (NAPT) function from the centralized DS-Lite tunnel concentrator to the tunnel client located in the Customer Premises Equipment (CPE). This removes the requirement for a Carrier Grade NAT function in the tunnel concentrator and reduces the amount of centralized state that must be held to a per-subscriber level. In order to delegate the NAPT function and make IPv4 address sharing possible, port-restricted IPv4 addresses are allocated to the CPEs.

Document record

Document ID
RFC7596
Published
July 2015
Authors
Y. Cui; Q. Sun; M. Boucadair; T. Tsou; Y. Lee; I. Farrer
Status
PROPOSED STANDARD
Stream
IETF
Area
int
Pages
22
Also known as
—

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/7596-lightweight-4over6-an-extension-to-the-dual-stack-lite-architecture