Extended IPv6 Addressing for Encoding Port Range

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Last updated 2012-04-25 (latest revision 2011-10-23)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document discusses an extension of the algorithmic translation between IPv4 and IPv4-translatable IPv6 addresses. The extended address format contains transport-layer port range information which allows several IPv6 nodes to share a single IPv4 address with each node managing a different range of ports. This address format extension can be used for IPv4/IPv6 translation, as well as IPv4 over IPv6 tunneling.


Congxiao Bao (congxiao@cernet.edu.cn)
Xing Li (xing@cernet.edu.cn)

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