IPv6-only and Dual Stack Hosts on the Same Network with DNS64

Document Type Expired Internet-Draft (individual)
Last updated 2011-02-14
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Some networks are expected to support IPv4-only, dual-stack, and IPv6-only hosts at the same time. Such networks also want to IPv6/ IPv4 translation for the IPv6-only host so it can access servers on the IPv4 Internet. On such a network, the synthesized AAAA responses from a DNS64 can cause traffic to be translated. This document describes a solution to avoid that translation when the application uses DNS.


Dan Wing (dwing@cisco.com)

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