Softwire Security Analysis and Requirements
RFC 5619
Document | Type | RFC - Proposed Standard (August 2009; No errata) | |
---|---|---|---|
Authors | Hidetoshi Yokota , Carl Williams , Shu Yamamoto , Florent Parent | ||
Last updated | 2015-10-14 | ||
Stream | Internet Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5619 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ralph Droms | ||
Send notices to | (None) |
Network Working Group S. Yamamoto Request for Comments: 5619 NICT/KDDI R&D Labs Category: Standards Track C. Williams H. Yokota KDDI R&D Labs F. Parent Beon Solutions August 2009 Softwire Security Analysis and Requirements Abstract This document describes security guidelines for the softwire "Hubs and Spokes" and "Mesh" solutions. Together with discussion of the softwire deployment scenarios, the vulnerability to security attacks is analyzed to provide security protection mechanisms such as authentication, integrity, and confidentiality to the softwire control and data packets. Copyright Notice Copyright (c) 2009 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 in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Yamamoto, et al. Standards Track [Page 1] RFC 5619 Softwire Security Considerations August 2009 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 4 2.2. Requirements Language . . . . . . . . . . . . . . . . . . 5 3. Hubs and Spokes Security Guidelines . . . . . . . . . . . . . 5 3.1. Deployment Scenarios . . . . . . . . . . . . . . . . . . . 5 3.2. Trust Relationship . . . . . . . . . . . . . . . . . . . . 7 3.3. Softwire Security Threat Scenarios . . . . . . . . . . . . 8 3.4. Softwire Security Guidelines . . . . . . . . . . . . . . . 11 3.4.1. Authentication . . . . . . . . . . . . . . . . . . . . 12 3.4.2. Softwire Security Protocol . . . . . . . . . . . . . . 13 3.5. Guidelines for Usage of IPsec in Softwire . . . . . . . . 13 3.5.1. Authentication Issues . . . . . . . . . . . . . . . . 14 3.5.2. IPsec Pre-Shared Keys for Authentication . . . . . . . 15 3.5.3. Inter-Operability Guidelines . . . . . . . . . . . . . 15 3.5.4. IPsec Filtering Details . . . . . . . . . . . . . . . 16 4. Mesh Security Guidelines . . . . . . . . . . . . . . . . . . . 19 4.1. Deployment Scenario . . . . . . . . . . . . . . . . . . . 19 4.2. Trust Relationship . . . . . . . . . . . . . . . . . . . . 20 4.3. Softwire Security Threat Scenarios . . . . . . . . . . . . 20 4.4. Applicability of Security Protection Mechanism . . . . . . 21 4.4.1. Security Protection Mechanism for Control Plane . . . 21 4.4.2. Security Protection Mechanism for Data Plane . . . . . 22 5. Security Considerations . . . . . . . . . . . . . . . . . . . 23 6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 23 7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.1. Normative References . . . . . . . . . . . . . . . . . . . 23 7.2. Informative References . . . . . . . . . . . . . . . . . . 24 Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 26 A.1. IPv6-over-IPv4 Softwire with L2TPv2 Example for IKE . . . 26 A.2. IPv4-over-IPv6 Softwire with Example for IKE . . . . . . . 26 Yamamoto, et al. Standards Track [Page 2] RFC 5619 Softwire Security Considerations August 2009 1. Introduction The Softwire Working Group specifies the standardization of discovery, control, and encapsulation methods for connecting IPv4 networks across IPv6 networks and IPv6 networks across IPv4 networks. The softwire provides connectivity to enable the global reachability of both address families by reusing or extending existing technology. The Softwire Working Group is focusing on the two scenarios that emerged when discussing the traversal of networks composed of differing address families. This document provides the securityShow full document text