Direct access compatibility testing methods / tools?

Hi Experts,

Is there any methods / tools I can use to test a Windows application to see if it is compatible with direct access? (Direct access server would be running on with Windows Server 2012 R2 and clients would connect from a Windows 7 Enterprise or Windows 10 Enterprise client) I believe direct access only works with IPv6?

Any suggestions on this would be great.

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David Johnson, CD, MVPOwnerCommented:
it will work over a ipv4 connection (server MUST have ipv6 enabled) using the 6to4 adapter whidh is included in server 2012+ and the clients.
sherlock1Author Commented:
Ok thanks, so any application regarless of whether the application supports IPv6 or not should work fine provided Ipv6 is enabled both on the client and the server using the 6to4 adapter, is this adapter enabled in the network connections on both the client and the server - is possible please can you clarify how its possible to install this adaptor?
David Johnson, CD, MVPOwnerCommented:
If you didn't go into the network settings and disable ipv6 then everything will work out of the box.  People have this impression that whenever there is a problem with networking disabling ipv6 is the solution .. At one time it was a popular recommened test.. these days ipv6 is getting more and more important.

Direct Access is a vpn type connection without a vpn.
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sherlock1Author Commented:
Ok but if I have an application that doesnt support ipv6 and i need to use direct access then I guess i need to setup the 6to4 adapter on both the client and the server?, please can you clarify how do I setup the 6to4 adapter?

David Johnson, CD, MVPOwnerCommented:
you are looking for issues when there aren't any. the 6to4 is part of the networking stack since Windows 7/Server 2012 there also is a 4to6 called teredo .. again you are looking for excuses.. if it works at the workplace it will work over direct access

all direct access is is a vpn without using the vpn networking stack.

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sherlock1Author Commented:
Ok thanks for your help with this and the further clarification
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