North American Network Operators Group
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Re: Access to the IPv4 net for IPv6-only systems, was: Re: WG Action: Conclusion of IP Version 6 (ipv6)
- From: Alain Durand
- Date: Fri Sep 28 18:31:58 2007
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.
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