DHCPv6 Options for Discovery of 464XLAT IPv6 Prefixes

Document Type Expired Internet-Draft (individual)
Authors Yong Cui  , Lishan Li  , Cong Liu  , Jianping Wu  , Fred Baker 
Last updated 2015-06-28 (latest revision 2014-12-25)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


464XLAT provides limited IPv4 connectivity across an IPv6-only network using translation technology. The customer-side translator (CLAT) performs stateless 1:1 mapping of an IPv4 destination address into a provider-side translator (PLAT) IPv6 prefix, which subsequently translates it back into IPv4. Different PLATs will likely have different IPv6 prefixes, to attract traffic to the correct PLAT. Thus, an automatic PLAT-side prefix discovery method is necessary for CLATs. This document defines a DHCPv6-based method to inform a CLAT of a PLAT's IPv6 prefix and the IPv4 prefixes it serves.


Yong Cui (yong@csnet1.cs.tsinghua.edu.cn)
Lishan Li (lilishan9248@126.com)
Cong Liu (gnocuil@gmail.com)
Jianping Wu (jianping@cernet.edu.cn)
Fred Baker (fred@cisco.com)

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