Multicast Extensions to the Security Architecture for the Internet Protocol
RFC 5374
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RFC - Proposed Standard
(November 2008; No errata)
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2015-10-14
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IETF
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plain text
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IESG state |
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RFC 5374 (Proposed Standard)
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Unknown
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Tim Polk
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Network Working Group B. Weis
Request for Comments: 5374 Cisco Systems
Category: Standards Track G. Gross
Secure Multicast Networks LLC
D. Ignjatic
Polycom
November 2008
Multicast Extensions to the
Security Architecture for the Internet Protocol
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.
Copyright Notice
Copyright (c) 2008 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.
Abstract
The Security Architecture for the Internet Protocol describes
security services for traffic at the IP layer. That architecture
primarily defines services for Internet Protocol (IP) unicast
packets. This document describes how the IPsec security services are
applied to IP multicast packets. These extensions are relevant only
for an IPsec implementation that supports multicast.
Weis, et al. Standards Track [Page 1]
RFC 5374 Multicast Extensions to RFC 4301 November 2008
Table of Contents
1. Introduction ....................................................3
1.1. Scope ......................................................3
1.2. Terminology ................................................4
2. Overview of IP Multicast Operation ..............................6
3. Security Association Modes ......................................7
3.1. Tunnel Mode with Address Preservation ......................7
4. Security Association ............................................8
4.1. Major IPsec Databases ......................................8
4.1.1. Group Security Policy Database (GSPD) ...............8
4.1.2. Security Association Database (SAD) ................12
4.1.3. Group Peer Authorization Database (GPAD) ...........12
4.2. Group Security Association (GSA) ..........................14
4.2.1. Concurrent IPsec SA Life Spans and Re-key Rollover .15
4.3. Data Origin Authentication ................................17
4.4. Group SA and Key Management ...............................18
4.4.1. Co-Existence of Multiple Key Management Protocols ..18
5. IP Traffic Processing ..........................................18
5.1. Outbound IP Traffic Processing ............................18
5.2. Inbound IP Traffic Processing .............................19
6. Security Considerations ........................................22
6.1. Security Issues Solved by IPsec Multicast Extensions ......22
6.2. Security Issues Not Solved by IPsec Multicast Extensions ..23
6.2.1. Outsider Attacks ...................................23
6.2.2. Insider Attacks ....................................23
6.3. Implementation or Deployment Issues that Impact Security ..24
6.3.1. Homogeneous Group Cryptographic Algorithm
Capabilities .......................................24
6.3.2. Groups that Span Two or More Security
Policy Domains .....................................24
6.3.3. Source-Specific Multicast Group Sender
Transient Locators .................................25
7. Acknowledgements ...............................................25
8. References .....................................................25
8.1. Normative References ......................................25
8.2. Informative References ....................................26
Appendix A - Multicast Application Service Models .................28
A.1 Unidirectional Multicast Applications ......................28
A.2 Bi-directional Reliable Multicast Applications .............28
A.3 Any-To-Any Multicast Applications ..........................30
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