Hello Tony,

On Sunday November 24 2019 18:23, you wrote to me:

 MvV>> Is it really DS-Lite or is it IPv6 only with NAT64?

 TL> The phone does get both an IPv4 and IPv6 address.  The IPv6 is global,
 TL> the IPv4 is not public.

That is what DS-Lite and IPv6 only with NAT64 have in common. But the
technology is different. Here the mobile ISP's go for IPv6 only plus NAT64.
With NAT64 the ISP moves some of the burden of making IPv4 only servers
accesable, to the user. They had to wait with that for Old Android (pre4.3) and
old iOs (pre-iOS12) phones to be phased out. The new phones have build in CLAT
to take care of the user side of NAT64.

IPv6 only with NAT64 is cheaper and has better scalability than DS-Lite.


Cheers, Michiel

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