Teredo Extensions
RFC 6081
| Document | Type |
RFC - Proposed Standard
(January 2011; Errata)
Updates RFC 4380
Was draft-thaler-v6ops-teredo-extensions (individual in int area)
|
|
|---|---|---|---|
| Last updated | 2020-01-21 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized with errata bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 6081 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Jari Arkko | ||
| Send notices to | fred@cisco.com | ||
Internet Engineering Task Force (IETF) D. Thaler
Request for Comments: 6081 Microsoft
Updates: 4380 January 2011
Category: Standards Track
ISSN: 2070-1721
Teredo Extensions
Abstract
This document specifies a set of extensions to the Teredo protocol.
These extensions provide additional capabilities to Teredo, including
support for more types of Network Address Translations (NATs) and
support for more efficient communication.
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/rfc6081.
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.
Thaler Standards Track [Page 1]
RFC 6081 Teredo Extensions January 2011
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. Symmetric NAT Support Extension . . . . . . . . . . . . . 9
3.2. UPnP-Enabled Symmetric NAT Extension . . . . . . . . . . . 11
3.3. Port-Preserving Symmetric NAT Extension . . . . . . . . . 13
3.4. Sequential Port-Symmetric NAT Extension . . . . . . . . . 14
3.5. Hairpinning Extension . . . . . . . . . . . . . . . . . . 15
3.6. Server Load Reduction Extension . . . . . . . . . . . . . 17
4. Message Syntax . . . . . . . . . . . . . . . . . . . . . . . . 18
4.1. Trailers . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2. Nonce Trailer . . . . . . . . . . . . . . . . . . . . . . 19
4.3. Alternate Address Trailer . . . . . . . . . . . . . . . . 19
4.4. Neighbor Discovery Option Trailer . . . . . . . . . . . . 20
4.5. Random Port Trailer . . . . . . . . . . . . . . . . . . . 21
5. Protocol Details . . . . . . . . . . . . . . . . . . . . . . . 22
5.1. Common Processing . . . . . . . . . . . . . . . . . . . . 22
5.1.1. Refresh Interval . . . . . . . . . . . . . . . . . . . 22
5.1.2. Trailer Processing . . . . . . . . . . . . . . . . . . 23
5.2. Symmetric NAT Support Extension . . . . . . . . . . . . . 23
5.2.1. Abstract Data Model . . . . . . . . . . . . . . . . . 24
5.2.2. Timers . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2.3. Initialization . . . . . . . . . . . . . . . . . . . . 24
5.2.4. Message Processing . . . . . . . . . . . . . . . . . . 24
5.3. UPnP-Enabled Symmetric NAT Extension . . . . . . . . . . . 25
5.3.1. Abstract Data Model . . . . . . . . . . . . . . . . . 26
5.3.2. Timers . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.3. Initialization . . . . . . . . . . . . . . . . . . . . 27
5.3.4. Message Processing . . . . . . . . . . . . . . . . . . 28
5.3.5. Shutdown . . . . . . . . . . . . . . . . . . . . . . . 29
5.4. Port-Preserving Symmetric NAT Extension . . . . . . . . . 30
5.4.1. Abstract Data Model . . . . . . . . . . . . . . . . . 30
5.4.2. Timers . . . . . . . . . . . . . . . . . . . . . . . . 31
5.4.3. Initialization . . . . . . . . . . . . . . . . . . . . 32
5.4.4. Message Processing . . . . . . . . . . . . . . . . . . 32
5.5. Sequential Port-Symmetric NAT Extension . . . . . . . . . 35
5.5.1. Abstract Data Model . . . . . . . . . . . . . . . . . 35
5.5.2. Timers . . . . . . . . . . . . . . . . . . . . . . . . 36
5.5.3. Initialization . . . . . . . . . . . . . . . . . . . . 37
5.5.4. Message Processing . . . . . . . . . . . . . . . . . . 37
5.6. Hairpinning Extension . . . . . . . . . . . . . . . . . . 39
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