RFC 6732 on 6to4 Provider Managed Tunnels

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        RFC 6732

        Title:      6to4 Provider Managed Tunnels 
        Author:     V. Kuarsingh, Ed.,
                    Y. Lee, O. Vautrin
        Status:     Informational
        Stream:     Independent
        Date:       September 2012
        Mailbox:    victor.kuarsingh@gmail.com, 
                    yiu_lee@cable.comcast.com, 
                    olivier@juniper.net
        Pages:      12
        Characters: 28156
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-kuarsingh-v6ops-6to4-provider-managed-tunnel-07.txt

        URL:        http://www.rfc-editor.org/rfc/rfc6732.txt

6to4 Provider Managed Tunnels (6to4-PMT) provide a framework that
can help manage 6to4 tunnels operating in an anycast configuration.
The 6to4-PMT framework is intended to serve as an option for operators 
to help improve the experience of 6to4 operation when conditions of the 
network may provide sub-optimal performance or break normal 6to4 
operation. 6to4-PMT supplies a stable provider prefix and forwarding 
environment by utilizing existing 6to4 relays with an added function of 
IPv6 Prefix Translation.  This operation may be particularly important in 
NAT444 infrastructures where a customer endpoint may be assigned a 
non-RFC1918 address, thus breaking the return path for anycast-based 6to4 
operation.  6to4-PMT has been successfully used in a production network, 
implemented as open source code, and implemented by a major routing 
vendor.  This document is not an Internet Standards Track specification; 
it is published for informational purposes.

INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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