CAPPORT Architecture
draft-ietf-capport-architecture-04
Internet Engineering Task Force K. Larose
Internet-Draft Agilicus
Intended status: Informational D. Dolson
Expires: December 31, 2019 June 29, 2019
CAPPORT Architecture
draft-ietf-capport-architecture-04
Abstract
This document aims to document consensus on the CAPPORT architecture.
DHCP or Router Advertisements, an optional signaling protocol, and an
HTTP API are used to provide the solution. The role of Provisioning
Domains (PvDs) is described.
Status of This Memo
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This Internet-Draft will expire on December 31, 2019.
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Larose & Dolson Expires December 31, 2019 [Page 1]
Internet-Draft CAPPORT Architecture June 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 4
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. Components . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1. User Equipment . . . . . . . . . . . . . . . . . . . . . 5
2.2. Provisioning Service . . . . . . . . . . . . . . . . . . 6
2.2.1. DHCP or Router Advertisements . . . . . . . . . . . . 6
2.2.2. Provisioning Domains . . . . . . . . . . . . . . . . 6
2.3. Captive Portal API Server . . . . . . . . . . . . . . . . 7
2.4. Captive Portal Enforcement . . . . . . . . . . . . . . . 7
2.5. Captive Portal Signal . . . . . . . . . . . . . . . . . . 8
2.6. Component Diagram . . . . . . . . . . . . . . . . . . . . 9
3. User Equipment Identity . . . . . . . . . . . . . . . . . . . 10
3.1. Identifiers . . . . . . . . . . . . . . . . . . . . . . . 10
3.2. Recommended Properties . . . . . . . . . . . . . . . . . 11
3.2.1. Uniquely Identify User Equipment . . . . . . . . . . 11
3.2.2. Hard to Spoof . . . . . . . . . . . . . . . . . . . . 11
3.2.3. Visible to the API . . . . . . . . . . . . . . . . . 12
3.2.4. Visible to the Enforcement Device . . . . . . . . . . 12
3.3. Evaluating an Identifier . . . . . . . . . . . . . . . . 12
3.4. Examples of an Identifier . . . . . . . . . . . . . . . . 12
3.4.1. Physical Interface . . . . . . . . . . . . . . . . . 12
3.4.2. IP Address . . . . . . . . . . . . . . . . . . . . . 13
4. Solution Workflow . . . . . . . . . . . . . . . . . . . . . . 14
4.1. Initial Connection . . . . . . . . . . . . . . . . . . . 14
4.2. Conditions About to Expire . . . . . . . . . . . . . . . 14
5. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 15
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
7. Security Considerations . . . . . . . . . . . . . . . . . . . 15
7.1. Trusting the Network . . . . . . . . . . . . . . . . . . 15
7.2. Authenticated APIs . . . . . . . . . . . . . . . . . . . 16
7.3. Secure APIs . . . . . . . . . . . . . . . . . . . . . . . 16
7.4. Risk of Nuisance Captive Portal . . . . . . . . . . . . . 16
7.5. User Options . . . . . . . . . . . . . . . . . . . . . . 16
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.1. Normative References . . . . . . . . . . . . . . . . . . 17
8.2. Informative References . . . . . . . . . . . . . . . . . 17
Appendix A. Existing captive portal detection implementations . 17
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