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Microsoft DirectAccess + Surface Pro 4s

Posted on 2016-08-16
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Last Modified: 2016-08-22
Hello All --

I am trying to test out DirectAccess with our Surface Pro 4 tablets.  I've gotten everything setup and it even connects via IP-HTTPS as per the screenshot:

Capture.PNG
I tried a few troubleshooting tools and guides (making sure domain firewall profile is applied to the internal network interface, pulling logs from the client, making sure port 443 is open on the firewall, etc) with no success.  It seems like the client is able to successfully connect but no data is being returned.  

Back tracking a bit, we have the following environment.  

Environment:
DirectAccess Server (Windows 2012 R2, 2 Network Interfaces with 1 DMZ and 1 Internal)
 * Public GoDaddy cert for IP-HTTPS
 * Self-signed the NLS
DirectAccess Client (Surface Pro 4 with Windows 10 Enterprise)
Cisco Meraki Environment (IPv4 only)

The only thing I can think of now is that it doesn't work in our environment since we have an IPv4 only environment.  The meraki firewall (MX) only passes IPv6 traffic in passthrough mode (which it is not).  However, when i'm reading the articles online, it appears that IPv6 just has to be enabled on the client and not the internal environment itself for DirectAccess to work.  Any one can clarify?  Any other troubleshooting steps I can take?

Thanks!
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Question by:Edward Cho
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6 Comments
 
LVL 59

Expert Comment

by:Cliff Galiher
ID: 41758590
DirectAccess does not support software that requires IPv4 end to end. The client end must not only have IPv6 enabled, but any software on the client end must also support IPv6. On the server end, if you are not gong to use IPv6, you must configure some sort of 6 to 4 topology.
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LVL 4

Author Comment

by:Edward Cho
ID: 41759542
Thanks for the reply.  

I thought Server 2012 direct access server has built-in NAT64 and DNS64 support for accessing IPv4-only resources so I would think it's possible to have an IPv4 corp network only?
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LVL 59

Assisted Solution

by:Cliff Galiher
Cliff Galiher earned 2000 total points
ID: 41759557
On the server side, yes (assuming your infrastructure is properly set up.) but client software still requires IPv6 support as NAT64 is not running on the client side. Lync 2010 was a perfect example of software that didn't run over directaccess because the client didn't support IPv6.
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LVL 4

Author Comment

by:Edward Cho
ID: 41759572
Gotcha but I should still be able to ping servers (including the DA server) and/or access file shares?  I am unable to do so and the W10 Enterprise client is stuck on this screen:

Capture.PNG
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LVL 4

Accepted Solution

by:
Edward Cho earned 0 total points
ID: 41760377
Found out that the Surface Pro 4 I was testing with had issues with the Windows Firewall.  Reset Windows Firewall and everything started working.
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Author Closing Comment

by:Edward Cho
ID: 41765045
Solved my own problem.
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