Can I use more than one source for host control? (Example: Instructor host system and simulation host system with separate IP addresses)
Yes. If the instructor host and simulation host are on the same network, a single network connection is all that is required (with the assumption that the various hosts will send to individual Ethernet UDP ports).
If the hosts are on different networks, any of the available ethernet interfaces can be leveraged. Unicast, broadcast, and multicast-over-UDP are all supported. See the Telestra user guide for the latest information.