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Re: New Version Notification for draft-koodli-ipv6-in-mobile-networks-02

On 2010-04-19 13:02, Rémi Després wrote:

- If DNS64-NAT64 synthesizes
IPv6 addresses that hosts don't distinguish today from real IPv6
addresses, this destroys the IPv6 guarantee of e2e transparency.

In my understanding, until all concerned applications do recognize
IPv4-embeded IPv6 addresses from real ones, DNS64-NAT64 will be
harmful to IPv6, and should be advised against.

Dual-stack deployments (with NAT44 CGNs and guaranteed IPv6 e2e
transparency), offer on the other hand a clean IPv6 service that
IPv6-only deployments with DNS64-NAT64 can't offer.
In both situations there is a NAT only for IPv4-only services, and nowhere else. I fail to see why one would be "cleaner" than the other. 

Simon
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