Direct Access 2012 R2 - route by IP address ?

Hi all,

         Direct access on 2012 R2 implemented and working.

We have one application, which after initially querying the server via DNS name (which works) - all further communication occurs via IP address....  which fails - I assume because DA simply doesn't know that the IP traffic should be sent across the tunnel.

Is there any way of adding an IP (or set of IP's) that should always be sent across the DA tunnel ?