Feelings about NAT64/DNS64?

[Graham Beneke]

On 08/12/2010 15:42, Cameron Byrne wrote:
> I have seen many implementations of NAT64 in the data center.  In
> fact. ipv6.t-mobile.com is NAT64.  It is very common for a service
> that is IPv4-only today to put a load-balancer with an IPv6 VIP/VS
> facing the IPv6 internet and have pool members that are IPv4-only
>
> IPv6-Internet--->NAT64/Load Balancer---->IPv4-only legacy server.
>
>
> IPv4-Internet-->Load Balancer --->  IPv4-only legacy server
>
> I normally don't think of NAT64 like this, i too usually think about
> NAT64 benefits for the eyeball networks, but this case in the data
> center, which is a common IPv6 migration step, is also NAT from 6 to
> 4.

Hadn't thought of it that way either TBH. I was thinking of something 
along the lines of:

IPv6-Server--->NAT64---->IPv4-Internet

Which seemed a little silly :-)

I also expected that most people were using layer-7 boxes for this kind 
of thing. NAT64 actually makes a lot of sense as a 'catch-all' solution 
if you don't need to pass any of the layer-3 bits to the final server.

-- 
Graham Beneke