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Ports are used to define the endpoints of connections. While an address specifies the computer in a connection, a port provides a unique identifier for the connection.
When defining endpoints for rules, ports can be used to restrict the filtering to a specified port or port range. Note that ports are only valid for rules that use a protocol of TCP or UDP.
All ports that are used in rules are stored in a central list on the server. The port list contains all of the ports that are used.
The port list can be accessed by via the View, Ports menu in the manager application:
The Port List Window allows you to modify the port list with the following options:
The Port Properties Window allows you to change the contents of a port. It can be accessed by selecting a port in the list and clicking the Edit button:
The Port Properties Window allows you to set both the port data and the type of port. There are two port types to choose from: