RADIUS Extensions for IP Port Configuration and Reporting
draft-ietf-radext-ip-port-radius-ext-02

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Document Type Active Internet-Draft (radext WG)
Last updated 2014-12-17 (latest revision 2014-12-12)
Replaces draft-cheng-radext-ip-port-radius-ext, draft-cheng-behave-cgn-cfg-radius-ext
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Network Working Group                                           D. Cheng
Internet-Draft                                                    Huawei
Intended status: Standards Track                             J. Korhonen
Expires: June 15, 2015                                          Broadcom
                                                            M. Boucadair
                                                          France Telecom
                                                            S. Sivakumar
                                                           Cisco Systems
                                                       December 12, 2014

       RADIUS Extensions for IP Port Configuration and Reporting
                draft-ietf-radext-ip-port-radius-ext-02

Abstract

   This document defines three new RADIUS attributes.  For devices that
   implementing IP port ranges, these attributes are used to communicate
   with a RADIUS server in order to configure and report TCP/UDP ports
   and ICMP identifiers, as well as mapping behavior for specific hosts.
   This mechanism can be used in various deployment scenarios such as
   CGN (Carrier Grade NAT), NAT64, Provider WLAN Gateway, etc.

   This document does not make any assumption about the deployment
   context.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on June 15, 2015.

Cheng, et al.             Expires June 15, 2015                 [Page 1]
Internet-Draft        RADIUS Extensions for IP Port        December 2014

Copyright Notice

   Copyright (c) 2014 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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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Extensions of RADIUS Attributes and TLVs  . . . . . . . . . .   5
     3.1.  Extended Attributes for IP Ports  . . . . . . . . . . . .   6
       3.1.1.  Extended-Type and IP-Port-Type TLV  . . . . . . . . .   6
       3.1.2.  IP-Port-Limit Attribute . . . . . . . . . . . . . . .   7
       3.1.3.  IP-Port-Range Attribute . . . . . . . . . . . . . . .   9
       3.1.4.  IP-Port-Forwarding-Map Attribute  . . . . . . . . . .  12
     3.2.  RADIUS TLVs for IP Ports  . . . . . . . . . . . . . . . .  14
       3.2.1.  IP-Port-Limit TLV . . . . . . . . . . . . . . . . . .  14
       3.2.2.  IP-Port-Ext-IPv4-Addr TLV . . . . . . . . . . . . . .  15
       3.2.3.  IP-Port-Int-IP-Addr TLV . . . . . . . . . . . . . . .  16
       3.2.4.  IP-Port-Int-Port TLV  . . . . . . . . . . . . . . . .  17
       3.2.5.  IP-Port-Ext-Port TLV  . . . . . . . . . . . . . . . .  17
       3.2.6.  IP-Port-Alloc TLV . . . . . . . . . . . . . . . . . .  18
       3.2.7.  IP-Port-Range-Start TLV . . . . . . . . . . . . . . .  19
       3.2.8.  IP-Port-Range-End TLV . . . . . . . . . . . . . . . .  20
       3.2.9.  IP-Port-Local-Id TLV  . . . . . . . . . . . . . . . .  20
   4.  Applications, Use Cases and Examples  . . . . . . . . . . . .  21
     4.1.  Managing CGN Port Behavior using RADIUS . . . . . . . . .  21
       4.1.1.  Configure IP Port Limit for a User  . . . . . . . . .  22
       4.1.2.  Report IP Port Allocation/De-allocation . . . . . . .  24
       4.1.3.  Configure Forwarding Port Mapping . . . . . . . . . .  25
       4.1.4.  An Example  . . . . . . . . . . . . . . . . . . . . .  27
     4.2.  Report Assigned Port Set for a Visiting UE  . . . . . . .  28
   5.  Table of Attributes . . . . . . . . . . . . . . . . . . . . .  29
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