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6bed4: Peer-to-Peer IPv6 on Any Internetwork

The information below is for an old version of the document.
Document Type This is an older version of an Internet-Draft whose latest revision is Expired
Author Rick van Rein
Last updated 2014-02-02 (Latest revision 2013-08-01)
Stream (None)
Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)
This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:


The purpose of 6bed4 is to support IPv6-only applications, even on IPv4-only networks. A specific area of concern is that of peer-to- peer protocols such as SIP or document exchange during a chat session. Such protocols are designed to run in any environment, which means that they cannot rely on IPv6 for themselves, or for their peers. The 6bed4 tunnel mechanism ensures that IPv6 can be assumed on all peers. The 6bed4 mechanism is meant as a fallback mechanism for IPv6 connectivity on networks that do not support it natively, by running a tunnel over UDP and IPv4. The IPv4 address is used to support traceability of the traffic originator, which means that no user account or other configuration is needed. The tunnel mechanism encapsulates IPv6 in UDP/IPv4 and builds on existing IPv6 mechanisms; it employs Stateless Address Autoconfiguration [RFC4862] to setup an IPv6 address on a 6bed4 Peer, and Neighbor Discovery [RFC4861] to find the most direct route to a remote 6bed4 Peer.


Rick van Rein

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)