I have a xxxx-xxx-DFCM4 with Pass-Through enabled. The Pass-Through (Debug/CFG) port and the Port 0 DFCM port shows no activity. What am I doing wrong?

When using a ProLinx gateway that supports DF1 pass-through, you willneed to enable at least one command on DFCM port 0.  If no commands are really needed, than the poll rate on a single command can be set to a high poll rate in order to minimize the impact.