RADIUS Option for DHCPv6 Relay Agents on Broadband Access Server
draft-ietf-dhc-dhcpv6-radius-opt-04
DHC Working Group L. Yeh
Internet-Draft Huawei Technologies
Intended status: Standards Track M. Boucadair
Expires: May 9, 2013 France Telecom
T. Lemon
Nominum, Inc
November 5, 2012
RADIUS Option for DHCPv6 Relay Agents on Broadband Access Server
draft-ietf-dhc-dhcpv6-radius-opt-04
Abstract
The DHCPv6 RADIUS option provides a mechanism to exchange
authorization and identification information between relay agent and
server. This mechanism is meant for the centralized DHCPv6 server to
select the right configuration for the requesting client based on the
authorization information received from the RADIUS server, which is
not co-located with the DHCPv6 server. The NAS acts as DHCPv6 relay
agent and RADIUS client simultaneously in this document.
Status of this Memo
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This Internet-Draft will expire on May 9, 2013.
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Yeh, et al. Expires May 9, 2013 [Page 1]
Internet-Draft DHCPv6 RADIUS Option November 2012
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology and Language . . . . . . . . . . . . . . . . . . . 3
3. Network Scenarios . . . . . . . . . . . . . . . . . . . . . . . 4
4. DHCPv6 RADIUS option . . . . . . . . . . . . . . . . . . . . . 6
5. Relay Agent Behavior . . . . . . . . . . . . . . . . . . . . . 6
6. Server Behavior . . . . . . . . . . . . . . . . . . . . . . . . 7
7. Client Behavior . . . . . . . . . . . . . . . . . . . . . . . . 7
8. Security Considerations . . . . . . . . . . . . . . . . . . . . 7
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 7
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 8
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 8
11.1. Normative References . . . . . . . . . . . . . . . . . . . 8
11.2. Informative References . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 9
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Internet-Draft DHCPv6 RADIUS Option November 2012
1. Introduction
DHCPv6 provides a mechanism that allows the server to assign or
delegate both stateful and stateless configuration parameters to the
clients. The stateful configuration parameters include IPv6 address
[RFC3315], IPv6 prefix [RFC3633], etc. The stateless configuration
parameters [RFC3736] include, for example, DNS [RFC3646], or a FQDN
of AFTR [RFC6334]. In this document, the DHCPv6 server is deployed
in the central part of an ISP network.
RADIUS [RFC2865] is widely used as the centralized authentication,
authorization and user management mechanism for the service provision
in Broadband access network. [RFC3162], [RFC4818], [RFC6519] and
[I-D.ietf-radext-ipv6-access] specified attributes that support the
service provision for IPv6-only and IPv6-transition access. RADIUS
server authorizes the NAS to assign an IPv6 address or prefix from
the indicated pool, or to assign an IPv6 address or prefix with an
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