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Re: Access to the IPv4 net for IPv6-only systems, was: Re: WG Action: Conclusion of IP Version 6 (ipv6)
On 10/21/07 5:13 PM, "Iljitsch van Beijnum" <iljitsch@xxxxxxxxx> wrote: > > > I think an approach where you have a regular IPv4 NAT and then tunnel > the RFC 1918 addresses over an IPv6-only network would work better > than NAT-PT. The issue here is that the translation would have to occur at the box that is decapsulating the packet, as the mapping private-v4 to v4 would have to be indexed by some kind of tunnel ID that identifies the customer. If you translate v4 to v6 at the home gateway, you have a global v6 address to identify that customer and you can do the reverse translation (back to v4) pretty much anywhere you want in the service provider network. - Alain.