In the QoS —> Classification section, one of the fields allows you to enter an IP address and define it as either Dst. or Src. Reading online, I've seen several different interpretations of these fields: some say that they are literally the SRC and DST IP addresses, others that the Src. field always refers to your local subnet while Dst. would be an Internet address.
What I'm trying to do is set-up a rule that classifies all traffic originating from or terminating at my local server (192.168.1.14) to a specific level.