Subj : IPv6 in R46
To   : Alex Shuman
From : Michiel van der Vlist
Date : Mon Jan 16 2023 04:22 pm

Hello Alex,

On Monday January 16 2023 14:58, you wrote to me:

 MvdV>> https://pulse.internetsociety.org/blog/ipv6-to-the-stars

 AS> Indeed, Kyivstar introduced IPv6 mobile internet, with severe bugs
 AS> though, they use DS-lite

Are you sure it is DS-Lite? My understanding is that DS-Lite is only used on 
"fixed" networks and that mobile networks use IPv6 only with IPv4 via 
DNS64/NAT64.

Kyivstar deploys both mobile and fixed networks do they?

 AS> and their DNS servers often resolve IPv4-only DNS into NAT64
 AS> (64:ff9b::) addresses...

Which would be the usual way for IPv6 on;y mobile networks.

 AS>  Using other DNS servers works, though.

Maybe they still need to iron out the theething problems.


Cheers, Michiel

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