Avigilon ACC Server Version 4.12 - Manual (Page 37)

Setup
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Figure B.
Network dialog box
The UDP and TCP port ranges used by the Server software are updated as the base port changes.
The TCP port range must be accessible by the client computer and can be forwarded on any router or
network address translation point between the client and server.
Web Browser Access: http://:50083/ indicates how you can access the Avigilon
Control Center Web Client. See
Starting the Avigilon Control Center Web Client for more information.