On 04.03.2009, at 22:57, Norbert Bollow wrote:
Andreas Fink <[email protected]> wrote:
Currently, we will have a dual standard world for a while. so having
IPv4 server responding with IPv4/Ipv6 information is what we are
going
to see for a long long while. Nobody says you should NOT have IPv4.
Just not only. I see the future as IPv4->NAT->limited, IPv6->Native.
How do you (reliably) talk with IPv4-only hosts via the internet when
you're on an (IPv6 natively connected) IPv6-only ethernet?
1st: who says its IPv6 ONLY ethernet? IPv4 can and should stay.
Maybe through crappy NAT or proxy. Maybe only to assign DNS ;-)
2nd: IPv6 maps IPv4 addresses into a specific IPv6 prefix. So if you
talk purely IPv6, you can address an IPv4 host by using the ::ffff:
prefix.
Andreas Fink
Fink Consulting GmbH
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