Softwire Security Analysis and Requirements
RFC 5619
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RFC - Proposed Standard
(August 2009; No errata)
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Last updated |
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2015-10-14
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Stream |
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IETF
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plain text
pdf
html
bibtex
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WG state
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(None)
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Document shepherd |
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No shepherd assigned
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| IESG |
IESG state |
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RFC 5619 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Ralph Droms
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Send notices to |
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(None)
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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
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