4over6 Transit Solution Using IP Encapsulation and MP-BGP Extensions (RFC5747)
Original Publication Date: 2010-Mar-01
Included in the Prior Art Database: 2010-Mar-11
Internet Society Requests For Comment (RFCs)
J. Wu: AUTHOR [+5]
Due to the lack of IPv4 address space, more and more IPv6 networks have been deployed not only on edge networks but also on backbone networks. However, there are still a large number of legacy IPv4 hosts and applications. As a result, IPv6 networks and IPv4 applications/hosts will have to coexist for a long period of time.
Independent Submission J. Wu Request for Comments: 5747 Y. Cui Category: Experimental X. Li ISSN: 2070-1721 M. Xu Tsinghua University C. Metz Cisco Systems, Inc. March 2010
4over6 Transit Solution Using IP Encapsulation and MP-BGP Extensions
The emerging and growing deployment of IPv6 networks will introduce cases where connectivity with IPv4 networks crossing IPv6 transit backbones is desired. This document describes a mechanism for automatic discovery and creation of IPv4-over-IPv6 tunnels via extensions to multiprotocol BGP. It is targeted at connecting islands of IPv4 networks across an IPv6-only backbone without the need for a manually configured overlay of tunnels. The mechanisms described in this document have been implemented, tested, and deployed on the large research IPv6 network in China.
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 is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not 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/rfc5747.
The mechanisms and techniques described in this document are related to specifications developed by the IETF softwire working group and published as Standards Track documents by the IETF, but the relationship does not prevent publication of this document.
Wu, et al. Experimental [Page 1]
RFC 5747 ...