Scenarios with Host Identification Complications
RFC 7620
| Document | Type |
RFC - Informational
(August 2015; No errata)
Was draft-boucadair-intarea-host-identifier-scenarios (individual)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | ISE | ||
| Formats | plain text pdf html bibtex | ||
| IETF conflict review | conflict-review-boucadair-intarea-host-identifier-scenarios | ||
| Stream | ISE state | Published RFC | |
| Consensus Boilerplate | Unknown | ||
| Document shepherd | Adrian Farrel | ||
| Shepherd write-up | Show (last changed 2015-04-20) | ||
| IESG | IESG state | RFC 7620 (Informational) | |
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | (None) | ||
| IANA | IANA review state | IANA OK - No Actions Needed | |
| IANA action state | No IC | ||
Independent Submission M. Boucadair, Ed.
Request for Comments: 7620 B. Chatras
Category: Informational Orange
ISSN: 2070-1721 T. Reddy
Cisco Systems
B. Williams
Akamai, Inc.
B. Sarikaya
Huawei
August 2015
Scenarios with Host Identification Complications
Abstract
This document describes a set of scenarios in which complications
when identifying which policy to apply for a host are encountered.
This problem is abstracted as "host identification". Describing
these scenarios allows commonalities between scenarios to be
identified, which is helpful during the solution design phase.
This document does not include any solution-specific discussions.
IESG Note
This document describes use cases where IP addresses are overloaded
with both location and identity properties. Such semantic
overloading is seen as a contributor to a variety of issues within
the routing system [RFC4984]. Additionally, these use cases may be
seen as a way to justify solutions that are not consistent with IETF
Best Current Practices on protecting privacy [BCP160] [BCP188].
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This is a contribution to the RFC Series, independently of any other
RFC stream. The RFC Editor has chosen to publish this document at
its discretion and makes no statement about its value for
implementation or deployment. Documents approved for publication by
the RFC Editor are not a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
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/rfc7620.
Boucadair, et al. Informational [Page 1]
RFC 7620 Host Identification: Scenarios August 2015
Copyright Notice
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
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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
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. Open WLAN or Provider WLAN . . . . . . . . . . . . . . . 13
10.2. Cellular Networks . . . . . . . . . . . . . . . . . . . 14
10.3. Femtocells . . . . . . . . . . . . . . . . . . . . . . . 14
10.4. Traffic Detection Function (TDF) . . . . . . . . . . . . 17
10.5. Fixed and Mobile Network Convergence . . . . . . . . . . 18
11. Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12. Privacy Considerations . . . . . . . . . . . . . . . . . . . 21
13. Security Considerations . . . . . . . . . . . . . . . . . . . 22
14. Informative References . . . . . . . . . . . . . . . . . . . 22
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 26
Boucadair, et al. Informational [Page 2]
RFC 7620 Host Identification: Scenarios August 2015
1. Introduction
The goal of this document is to enumerate scenarios that encounter
the issue of uniquely identifying a host among those sharing the same
IP address. Within this document, a host can be any device directly
connected to a network operated by a network provider, a Home
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