You already know that when possible, you want users connecting through DirectAccess by utilizing the more efficient protocols. IP-HTTPS works very well, particularly for the Windows 8 clients, but let's discover a couple of quick tricks you can have up your sleeve to increase the utilization of Teredo as our preferred tunneling method.
There are different modes, or statuses, that you can set Teredo to use on the DirectAccess client computers. By default, Teredo is set to Client
. There is one big downside to running this way, if your DirectAccess client computer is currently plugged into a network that is a domain network (any domain, not just your own), Teredo will not connect by design. A good example of this is one of your users visiting a customer site and plugging in their laptop while they are there. If Teredo recognizes that a domain exists on that network, it will not connect. In this case, IP-HTTPS should pick up the slack...