Encrypted Signaling Transport Modes for the Host Identity Protocol
RFC 6261
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Type |
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RFC - Experimental
(May 2011; 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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WG Document
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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 6261 (Experimental)
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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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IESG note |
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Gonzalo Camarillo (gonzalo.camarillo@ericsson.com) is the document shepherd
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Send notices to |
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(None)
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Internet Engineering Task Force (IETF) A. Keranen
Request for Comments: 6261 Ericsson
Category: Experimental May 2011
ISSN: 2070-1721
Encrypted Signaling Transport Modes for
the Host Identity Protocol
Abstract
This document specifies two transport modes for Host Identity
Protocol (HIP) signaling messages that allow them to be conveyed over
encrypted connections initiated with the Host Identity Protocol.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. 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). Not
all documents approved by the IESG are a candidate for any level of
Internet Standard; see 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/rfc6261.
Copyright Notice
Copyright (c) 2011 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. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Keranen Experimental [Page 1]
RFC 6261 HIP Encrypted Signaling Transport Modes May 2011
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Transport Mode Negotiation . . . . . . . . . . . . . . . . . . 3
3.1. Mode Negotiation in the HIP Base Exchange . . . . . . . . 3
3.2. Mode Negotiation after the HIP Base Exchange . . . . . . . 5
3.3. Error Notifications . . . . . . . . . . . . . . . . . . . 5
4. HIP Messages on Encrypted Connections . . . . . . . . . . . . 5
4.1. ESP Mode . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2. ESP-TCP Mode . . . . . . . . . . . . . . . . . . . . . . . 6
5. Recovering from Failed Encrypted Connections . . . . . . . . . 7
6. Host Mobility and Multihoming . . . . . . . . . . . . . . . . 8
7. Security Considerations . . . . . . . . . . . . . . . . . . . 8
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 9
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9
10.1. Normative References . . . . . . . . . . . . . . . . . . . 9
10.2. Informational References . . . . . . . . . . . . . . . . . 10
Appendix A. Mobility and Multihoming Examples . . . . . . . . . . 11
1. Introduction
Host Identity Protocol (HIP) [RFC5201] signaling messages can be
exchanged over plain IP using the protocol number reserved for this
purpose, or over UDP using the UDP port reserved for HIP NAT
traversal [RFC5770]. When two hosts perform a HIP base exchange,
they set up an encrypted connection between them for data traffic,
but continue to use plain IP or UDP for HIP signaling messages.
This document defines how the encrypted connection can be used also
for HIP signaling messages. Two different modes are defined: HIP
over Encapsulating Security Payload (ESP) and HIP over TCP. The
benefit of sending HIP messages over ESP is that all signaling
traffic (including HIP headers) will be encrypted. If HIP messages
are sent over TCP (which in turn is transported over ESP), TCP can
handle also message fragmentation where needed.
2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Keranen Experimental [Page 2]
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