Analysis of NAT64 Port Allocation Methods for Shared IPv4 Addresses

Document Type Expired Internet-Draft (individual)
Authors Gang Chen  , Weibo Li  , Tina Tsou  , Jing Huang  , Tom Taylor 
Last updated 2015-04-02 (latest revision 2014-09-29)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document enumerates methods of port assignment in Carrier Grade NATs (CGNs), focused particularly on NAT64 environments. A theoretical framework of different NAT port allocation methods is described. The memo is intended to clarify and focus the port allocation discussion and propose an integrated view of the considerations for selection of the port allocation mechanism in a given deployment.


Gang Chen (
Weibo Li (
Tina Tsou (
Jing Huang (
Tom Taylor (

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