PC-Duo Host reports status information to each PC-Duo Gateway listed on the Gateways tab. To add a PC-Duo Gateway to the list, follow these steps:
1 Click Add Gateway. The Gateway Connection Properties window appears.
u If you do not know the station name and/or address of the PC-Duo Gateway to which you want to connect, click Find Gateway. The Find Gateway Wizard appears. Follow the instructions on the wizard and click Finish when you are done.
u If you know the station name and/or address of the PC-Duo Gateway to which you want to connect, follow these steps:
2 Select the protocol to use from this list.
3 Specify the port number if it is not standard (default standard port is 2303).
4 Type the DNS name, PC-Duo Gateway name or network IP address in the Station Specifier field. See “PHSETUP Gateways parameters” for more information on the protocol-specific syntax for station specifiers.
5 If you are trying to reach a PC-Duo Gateway outside the PC-Duo Gateway network, make sure that either option (2) or (3) below is selected so that a firewall-friendly reverse connection with the Host can be established:
(1) Never keep reverse connection to this Gateway server. Select this option when the Host and PC-Duo Gateway are on the same LAN and the PC-Duo Gateway can easily establish a remote control connection to the Host when necessary.
(2) Always keep an reverse connection to this Gateway server. Select this option when the Host is not easily accessible to the PC-Duo Gateway, e.g. is behind a firewall and/or router with a Net Address Translation (NAT) table. The Host will use a reverse connection to maintain communication with the PC-Duo Gateway. By having the Host establish a reverse connection to the PC-Duo Gateway, the PC-Duo Gateway can always talk back over that connection to the Host and use it to deliver other services such as remote control, file transfer, etc. The potential downside of always maintaining the reverse connection is the overhead necessary to maintain these persistent connections. When multiple hosts are involved this overhead can add up to an unacceptable level for some LANs.
(3) Automatically determine if reverse connection is necessary. Select this option (default) to cause the Host to figure out if it needs a reverse connection to communicate with the PC-Duo Gateway based upon its IP address. This is the recommended choice.
NOTE: Option (3) is the default when adding a new Gateway, and is the recommended option.
6 Click OK when you are done.
