Access-Network-Identifier Option in DHCP
RFC 7839
Internet Engineering Task Force (IETF) S. Bhandari
Request for Comments: 7839 S. Gundavelli
Category: Standards Track M. Grayson
ISSN: 2070-1721 B. Volz
Cisco Systems
J. Korhonen
Broadcom Limited
June 2016
Access-Network-Identifier Option in DHCP
Abstract
This document specifies the format and mechanism that is to be used
for encoding Access-Network Identifiers in DHCPv4 and DHCPv6 messages
by defining new Access-Network-Identifier options and sub-options.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7839.
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
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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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.
Bhandari, et al. Standards Track [Page 1]
RFC 7839 ANI Options for DHCPv4 and DHCPv6 June 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. DHCPv4 Access-Network-Identifier Option . . . . . . . . . . . 5
4.1. DHCPv4 Access-Network-Identifier Sub-options . . . . . . 5
4.2. DHCPv4 Access-Technology-Type Sub-option . . . . . . . . 6
4.3. DHCPv4 Network-Identifier Sub-options . . . . . . . . . . 7
4.3.1. DHCPv4 Network-Name Sub-option . . . . . . . . . . . 7
4.3.2. DHCPv4 Access-Point-Name Sub-option . . . . . . . . . 8
4.3.3. DHCPv4 Access-Point-BSSID Sub-option . . . . . . . . 9
4.4. DHCPv4 Operator-Identifier Sub-options . . . . . . . . . 9
4.4.1. DHCPv4 Operator-Identifier Sub-option . . . . . . . . 9
4.4.2. DHCPv4 Operator-Realm Sub-option . . . . . . . . . . 10
5. DHCPv6 Access-Network-Identifier Options . . . . . . . . . . 10
5.1. DHCPv6 Access-Technology-Type Option . . . . . . . . . . 11
5.2. DHCPv6 Network-Identifier Options . . . . . . . . . . . . 11
5.2.1. DHCPv6 Network-Name Option . . . . . . . . . . . . . 12
5.2.2. DHCPv6 Access-Point-Name Option . . . . . . . . . . . 12
5.2.3. DHCPv6 Access-Point-BSSID Option . . . . . . . . . . 13
5.3. DHCPv6 Operator-Identifier Options . . . . . . . . . . . 13
5.3.1. DHCPv6 Operator-Identifier Option . . . . . . . . . . 13
5.3.2. DHCPv6 Operator-Realm Option . . . . . . . . . . . . 14
6. Relay Agent Behavior . . . . . . . . . . . . . . . . . . . . 14
7. Server Behavior . . . . . . . . . . . . . . . . . . . . . . . 15
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
9. Security Considerations . . . . . . . . . . . . . . . . . . . 17
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 18
10.1. Normative References . . . . . . . . . . . . . . . . . . 18
10.2. Informative References . . . . . . . . . . . . . . . . . 18
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 19
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 20
Bhandari, et al. Standards Track [Page 2]
RFC 7839 ANI Options for DHCPv4 and DHCPv6 June 2016
1. Introduction
Access-network identification of a network device has a range of
applications. For example, the Local Mobility Anchor (LMA) in a
Proxy Mobile IPv6 (PMIPv6) domain is able to provide service
treatment for the mobile node's traffic based on the access network
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