IPsec Extensions to Support Robust Header Compression over IPsec
RFC 5858
Internet Engineering Task Force (IETF) E. Ertekin
Request for Comments: 5858 C. Christou
Category: Standards Track Booz Allen Hamilton
ISSN: 2070-1721 C. Bormann
Universitaet Bremen TZI
May 2010
IPsec Extensions to Support Robust Header Compression over IPsec
Abstract
Integrating Robust Header Compression (ROHC) with IPsec (ROHCoIPsec)
offers the combined benefits of IP security services and efficient
bandwidth utilization. However, in order to integrate ROHC with
IPsec, extensions to the Security Policy Database (SPD) and Security
Association Database (SAD) are required. This document describes the
IPsec extensions required to support ROHCoIPsec.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in 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/rfc5858.
Ertekin, et al. Standards Track [Page 1]
RFC 5858 IPsec Extensions to Support ROHCoIPsec may 2010
Copyright Notice
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Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................3
3. Extensions to IPsec Databases ...................................3
3.1. Security Policy Database (SPD) .............................4
3.2. Security Association Database (SAD) ........................5
4. Extensions to IPsec Processing ..................................6
4.1. Identification of Header-Compressed Traffic ................6
4.2. Verifying the Integrity of Decompressed Packet Headers .....6
4.2.1. ICV Computation and Integrity Verification ..........7
4.3. ROHC Segmentation and IPsec Tunnel MTU .....................8
4.4. Nested IPComp and ROHCoIPsec Processing ....................9
5. Security Considerations ........................................10
6. IANA Considerations ............................................10
7. Acknowledgments ................................................11
Appendix A. ASN.1 Representation for ROHCoIPsec ...................12
8. References .....................................................14
8.1. Normative References ......................................14
8.2. Informative References ....................................14
Ertekin, et al. Standards Track [Page 2]
RFC 5858 IPsec Extensions to Support ROHCoIPsec may 2010
1. Introduction
Using IPsec ([IPSEC]) protection offers various security services for
IP traffic. However, these benefits come at the cost of additional
packet headers, which increase packet overhead. By compressing the
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