I've got 2 machines sitting side-by-side. Both running RHEL and RTI DDS 4.5d. I have applications written by 3rd parties running on both that share the same IDLs and topic names and domain ID "0." And no source. And I'm pretty new to RTI DDS.
Application A on machine A will publish topics that are subscribed to by Application B on machine B. Further, Application B will publish topics that Application A will subscribe to.