Is rtsp streams supported in linux client

Please ignore mention above in relation to CMS problems, all due to my unfamiliarity of 2.1.2.

OK - so with my

rtsp://login:password@192.168.1.1/defaultPrimary0?streamType=u

Clients terminal window declares my layout invalid due to region invalid , region invalid is due to invalid media, and reason for that is given as Reason [URI] parse error:
And lists out my above command (rtsp://login:password@192.168.1.1/defaultPrimary0?streamType=u ) with the @ ? = replaced by their hex equivalents.
I’m guessing that this means some preprocessing of the command given for validity is failing rather than actually running my rtsp command and it failing.

Jeremy