Question Re: best practices

Doug Junkins junkins at
Mon May 9 19:56:38 CEST 2011


Long time, no talk. Take a look at IVI which, in the direction you're talking about (i.e. IPv4 client initiated connections) has the benefit of being able to do IPv4 <--> IPv6 translation statelessly. Of course, you have to allocate a block of IPv4 addresses for your server pool, but it _may_ be possible to hash the source port number to allow a better than 1:1 ration of servers to IPv4 addresses.

CERNET is running this on an academic/test network in China.

-Doug Junkins

On May 9, 2011, at 1:42 PM, Austin Schutz wrote:

> Cameron Byrne wrote:
>>> Given: A small set ipv6 only network running various protocols, call this
>>> the "IPv6 only server network", and a large legacy client IPv4 network, call
>>> this, say, "The Internet".
> ...
> Internet Engineering Task Force (IETF)                        M. Bagnulo
> Request for Comments: 6146                                          UC3M
> Category: Standards Track                                    P. Matthews
> ISSN: 2070-1721                                           Alcatel-Lucent
>                                                          I. van Beijnum
>                                                          IMDEA Networks
>                                                              April 2011
>       Stateful NAT64: Network Address and Protocol Translation
>                   from IPv6 Clients to IPv4 Servers
> That is interesting, but it doesn't answer the question. You have solved the opposite problem.
> Austin

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