Restricting Access from Designated Location using IP Address
Set IP addresses for locations in Cross Application→Common Codes→Locations
If you are not sure of the IP address for a location,
run initdb when your are connected to the network in that location.
Look for My Address on the top-left corner of the screen.
Check the box titled Access from Location Only in System Administration–>Users, Roles, Groups & Limits→User tab.
Add the designated location in System Administration→Users, Roles, Groups & Limits→Locations tab.