On May 16, 2011, at 2:10 AM, George Bonser wrote: >> >> Because that way the IPv4 and IPv6 swarms remain disconnected in the >> absence of some dual stack peers. (I.e., if the swarm is small and >> you're the only IPv6 participant.) >> >> It would be much better if you could go from IPv6 to IPv4 through a >> NAT64. > > The problem is when the client is handed an explicit address rather than > a host name. In that case, there needs to be some standard environment > variable for "IPv64 Prefix" that applications can query. > > For a browser this might be something like the configured proxy. Maybe > an OS such as Windows might have a registry value for this. Maybe Linux > and other unix-like variations could have a sysctl for that. > It shouldn't be a sysctl. It should be more like resolv.conf at worst.
> There should be some standard way for a native v6 host to determine the > v6 to v4 prefix to use in a NAT64 environment. > This assumes some standard way to do NAT64. Owen
