Configuring clients for AR System servers
When servers are configured to run on specific TCP ports and are not registered with port mapper (Register-With-Portmapper: F), the clients must be configured to match the TPC port to which server is registered.
The specifics of your firewall configuration vary from manufacturer to manufacturer. Ask the network and security professionals at your company for more information.
For more information about TCP port numbers, see Assigning TCP port numbers to AR System servers.
Port 111 is used for Portmapper. The default configuration setting of the portmapper is Register-With-Portmapper: T. However, this port can be blocked for requests coming through the firewall. See the discussion in Configuring a server to use plug-ins.