RADIUS Extensions for IP Port Configuration and Reporting
RFC 8045
Internet Engineering Task Force (IETF) D. Cheng
Request for Comments: 8045 Huawei
Category: Standards Track J. Korhonen
ISSN: 2070-1721 Broadcom Corporation
M. Boucadair
Orange
S. Sivakumar
Cisco Systems
January 2017
RADIUS Extensions for IP Port Configuration and Reporting
Abstract
This document defines three new RADIUS attributes. For devices that
implement IP port ranges, these attributes are used to communicate
with a RADIUS server in order to configure and report IP transport
ports as well as mapping behavior for specific hosts. This mechanism
can be used in various deployment scenarios such as Carrier-Grade
NAT, IPv4/IPv6 translators, Provider WLAN gateway, etc. This
document defines a mapping between some RADIUS attributes and IP Flow
Information Export (IPFIX) Information Element identifiers.
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/rfc8045.
Cheng, et al. Standards Track [Page 1]
RFC 8045 RADIUS Extensions for IP Port January 2017
Copyright Notice
Copyright (c) 2017 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
carefully, as they describe your rights and restrictions with respect
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.
Cheng, et al. Standards Track [Page 2]
RFC 8045 RADIUS Extensions for IP Port January 2017
Table of Contents
1. Introduction ....................................................4
2. Terminology .....................................................5
2.1. Requirements Language ......................................6
3. Extensions of RADIUS Attributes and TLVs ........................7
3.1. Extended Attributes for IP Ports ...........................7
3.1.1. IP-Port-Limit-Info Attribute ........................7
3.1.2. IP-Port-Range Attribute .............................9
3.1.3. IP-Port-Forwarding-Map Attribute ...................12
3.2. RADIUS TLVs for IP Ports ..................................15
3.2.1. IP-Port-Type TLV ...................................16
3.2.2. IP-Port-Limit TLV ..................................17
3.2.3. IP-Port-Ext-IPv4-Addr TLV ..........................18
3.2.4. IP-Port-Int-IPv4-Addr TLV ..........................19
3.2.5. IP-Port-Int-IPv6-Addr TLV ..........................20
3.2.6. IP-Port-Int-Port TLV ...............................21
3.2.7. IP-Port-Ext-Port TLV ...............................22
3.2.8. IP-Port-Alloc TLV ..................................23
3.2.9. IP-Port-Range-Start TLV ............................24
3.2.10. IP-Port-Range-End TLV .............................25
3.2.11. IP-Port-Local-Id TLV ..............................25
4. Applications, Use Cases, and Examples ..........................27
4.1. Managing CGN Port Behavior Using RADIUS ...................27
4.1.1. Configure IP Port Limit for a User .................27
4.1.2. Report IP Port Allocation/Deallocation .............29
4.1.3. Configure Port Forwarding Mapping ..................31
4.1.4. An Example .........................................33
4.2. Report Assigned Port Set for a Visiting UE ................35
Show full document text