Scenarios with Host Identification Complications
draft-boucadair-intarea-host-identifier-scenarios-09

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Network Working Group                                  M. Boucadair, Ed.
Internet-Draft                                                  D. Binet
Intended status: Informational                                  S. Durel
Expires: July 18, 2015                                        B. Chatras
                                                          France Telecom
                                                                T. Reddy
                                                           Cisco Systems
                                                             B. Williams
                                                            Akamai, Inc.
                                                             B. Sarikaya
                                                                  L. Xue
                                                                  Huawei
                                                             R. Wheeldon

                                                        January 14, 2015

            Scenarios with Host Identification Complications
          draft-boucadair-intarea-host-identifier-scenarios-09

Abstract

   This document describes a set of scenarios in which complications to
   identify which policy to apply for a host are encountered.  This
   problem is abstracted as "host identification".  Describing these
   scenarios allows to identify what is common and then would help
   during the solution design phase.

   The document does not include any solution-specific discussion.

Status of This Memo

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   This Internet-Draft will expire on July 18, 2015.

Boucadair, et al.         Expires July 18, 2015                 [Page 1]
Internet-Draft       Host Identification: Scenarios         January 2015

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   Copyright (c) 2015 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Scenario 1: Carrier-Grade NAT (CGN) . . . . . . . . . . . . .   4
   4.  Scenario 2: Address plus Port (A+P) . . . . . . . . . . . . .   5
   5.  Scenario 3: On-Premise Application Proxy Deployment . . . . .   6
   6.  Scenario 4: Distributed Proxy Deployment  . . . . . . . . . .   7
   7.  Scenario 5: Overlay Network . . . . . . . . . . . . . . . . .   8
   8.  Scenario 6: Policy and Charging Control Architecture (PCC)  .  10
   9.  Scenario 7: Emergency Calls . . . . . . . . . . . . . . . . .  12
   10. Other Deployment Scenarios  . . . . . . . . . . . . . . . . .  13
     10.1.  Scenario 8: Open WLAN or Provider WLAN . . . . . . . . .  13
     10.2.  Scenario 9: Cellular Networks  . . . . . . . . . . . . .  14
     10.3.  Scenario 10: Femtocells  . . . . . . . . . . . . . . . .  15
     10.4.  Scenario 11: Traffic Detection Function (TDF)  . . . . .  16
     10.5.  Scenario 12: Fixed and Mobile Network Convergence  . . .  17
   11. Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . .  20
   12. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  20
   13. Security Considerations . . . . . . . . . . . . . . . . . . .  20
   14. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
   15. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  21
   16. Informative References  . . . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

1.  Introduction

   The goal of this document is to enumerate scenarios which encounter
   the issue of uniquely identifying a host among those sharing the same
   IP address.  An exhaustive list of encountered issues for the Carrier
   Grade NAT (CGN), Address plus Port (A+P), and Application Proxies
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