Win10 update CLAT

Mikael Abrahamsson swmike at
Thu Jul 27 16:50:55 CEST 2017


I did all the updates in Win10 because of the claim that CLAT would be 
included in the latest updates. I can't make it work. DNS64+NAT64 works 
correctly, but I can't ping IPv4 literals (expected behaviour of a host on 
IPv6-only+DNS64+NAT64 without CLAT).

"Improved 464XLAT support
464XLAT was originally designed for cellular only scenarios since mobile 
operators are some of the first ISPs with IPv6 only networks.  However, 
some apps are not IP-agnostic and still require IPv4 support.  Since a 
major use case for mobile is tethering, 464XLAT should provide IPv4 
connectivity to tethered clients as well as to apps running on the mobile 
device itself. Creators Update adds support for 464XLAT on desktops and 
tablets too. We also enabled support for TCP Large Send Offload (LSO) over 
464XLAT improving throughput and reducing CPU usage."

Is there anything specific I need to do to enable this?

Mikael Abrahamsson    email: swmike at

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