While moving servers between hubs in a tunneled environment using Infrastructure Manager > right click robot name > Move... and selecting the destination hub you might receive an error:
Error occurred when moving robot 'robot name'
The below message is also logged in IM:
Error on command: sethub
Because the connection between the hubs is restricted to the tunnel, the robots under the source hub are unable to reach the target hub, thus the 'Move' feature will not work.
Tunneled UIM environment
These are some alternatives to moving robots in a tunneled environment, use the most appropriate according to your environment and requirements: