Hello, You should pick the option as per your testing scenario's. Choose option 1 if you would like to test this for INTRANET, similarly option 2 if it is for INTERNET and option 3 will allow both INTRANET and INTERNET; (option definitions itself are pretty much clear) choose them as appropriate. I personally would go with option 3. More more info. you can refer... Test Lab Guide: Demonstrate DirectAccess http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=24144 ~Santosh

I am looking to set up a test lab for direct access, I am at the point of installing the certificate services, but I can't find anywhere the options I need whilst installing it. Which of the options on the screen shot below should I pick?