Softwire Hub and Spoke Deployment Framework with Layer Two Tunneling Protocol Version 2 (L2TPv2)
RFC 5571
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RFC - Proposed Standard
(June 2009; No errata)
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Last updated |
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2015-10-14
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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 state |
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RFC 5571 (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 B. Storer
Request for Comments: 5571 C. Pignataro, Ed.
Category: Standards Track M. Dos Santos
Cisco Systems
B. Stevant, Ed.
L. Toutain
TELECOM Bretagne
J. Tremblay
Videotron Ltd.
June 2009
Softwire Hub and Spoke Deployment Framework
with Layer Two Tunneling Protocol Version 2 (L2TPv2)
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) 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
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This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Storer, et al. Standards Track [Page 1]
RFC 5571 Softwire H & S Framework with L2TPv2 June 2009
Abstract
This document describes the framework of the Softwire "Hub and Spoke"
solution with the Layer Two Tunneling Protocol version 2 (L2TPv2).
The implementation details specified in this document should be
followed to achieve interoperability among different vendor
implementations.
Table of Contents
1. Introduction ....................................................4
1.1. Abbreviations ..............................................5
1.2. Requirements Language ......................................5
1.3. Considerations .............................................6
2. Applicability of L2TPv2 for Softwire Requirements ...............6
2.1. Traditional Network Address Translation (NAT and NAPT) .....6
2.2. Scalability ................................................7
2.3. Routing ....................................................7
2.4. Multicast ..................................................7
2.5. Authentication, Authorization, and Accounting (AAA) ........7
2.6. Privacy, Integrity, and Replay Protection ..................7
2.7. Operations and Management ..................................8
2.8. Encapsulations .............................................8
3. Deployment Scenarios ............................................8
3.1. IPv6-over-IPv4 Softwires with L2TPv2 .......................9
3.1.1. Host CPE as Softwire Initiator ......................9
3.1.2. Router CPE as Softwire Initiator ...................10
3.1.3. Host behind CPE as Softwire Initiator ..............11
3.1.4. Router behind CPE as Softwire Initiator ............12
3.2. IPv4-over-IPv6 Softwires with L2TPv2 ......................14
3.2.1. Host CPE as Softwire Initiator .....................14
3.2.2. Router CPE as Softwire Initiator ...................15
3.2.3. Host behind CPE as Softwire Initiator ..............16
3.2.4. Router behind CPE as Softwire Initiator ............16
4. References to Standardization Documents ........................17
4.1. L2TPv2 ....................................................18
4.2. Securing the Softwire Transport ...........................18
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