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Status:

PROPOSED STANDARD

Authors:

R. Maglione
A. Durand

Stream:

IETF

Source:

softwire (int)

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DOI:  https://doi.org/10.17487/RFC6519

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Abstract

Dual-Stack Lite is a solution to offer both IPv4 and IPv6connectivity to customers that are addressed only with an IPv6prefix. Dual-Stack Lite requires pre-configuration of the Dual-StackLite Address Family Transition Router (AFTR) tunnel information onthe Basic Bridging BroadBand (B4) element. In many networks, thecustomer profile information may be stored in Authentication,Authorization, and Accounting (AAA) servers, while clientconfigurations are mainly provided through the Dynamic HostConfiguration Protocol (DHCP). This document specifies a new RemoteAuthentication Dial-In User Service (RADIUS) attribute to carry theDual-Stack Lite AFTR tunnel name; the RADIUS attribute is definedbased on the equivalent DHCPv6 OPTION_AFTR_NAME option. This RADIUSattribute is meant to be used between the RADIUS server and theNetwork Access Server (NAS); it is not intended to be used directlybetween the B4 element and the RADIUS server. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.