Subj : IPv6 in R46
To   : Alex Shuman
From : Michiel van der Vlist
Date : Wed Jan 18 2023 10:51:33

Hello Alex,

On Tuesday January 17 2023 17:44, you wrote to me:

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

 AS> Yes, because they assign IPv4 over NAT (with 192.0.0.4 local IP and
 AS> 46.x.x.x external IP), so IPv4-only networks are accessible this way.

Hmmm.. That is indeed how DS-Lite works. I still find it strange.

 MvdV>> Maybe they still need to iron out the theething problems.

 AS> Well, if they are actually providing IPv4 in form of DS-lite, they
 AS> should resolve IPv4 hosts into their native IPv4.

They should indeed. But the fact that they do not may be an indication that the situation is more complex than it looks at first sight.

dhat mobile device do you use to see it? Smartphone?, router with SIM? Laptop with G4/G5 Dongle?


Cheers, Michiel

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