ZyXEL Communications NBG-418N v2 User Manual page 104

Network > NAT > Application
Figure 73
The following table describes the labels in this screen.
Table 44 Network > NAT > Application
LABEL DESCRIPTION
Add Application Rule
User Name Select an option from the drop-down list to choose a pre-defined service. The pre-
defined service port number(s) and protocol will display in the fields below.
User-Defined Type a name (of up to 31 printable characters) to identify this rule in the first field.
User Name Otherwise, select a predefined service in the User Name drop-down list. The predefined
service name and port number(s) will display in the User Name, Public and Local Port
fields.
Protocol Select the transport layer protocol used for the service. Choices are TCP, UDP, or
TCP&UDP.
Public Port Range Type a port number(s) to be forwarded.
Local Port Range To specify a range of ports, enter a hyphen (-) between the first port and the last port,
such as 10-20.
To specify two or more non-consecutive port numbers, separate them by a comma
without spaces, such as 123,567.
Server IP Address Type the inside IP address of the server that receives packets from the port(s) specified in
the Port field.
Apply Click Apply to save your changes to the Application Rules Summary table.
Reset Click Reset to not save and return your new changes in the Service Name and Port
fields to the previous one.
Application Rules Summary
User Name This field displays a name to identify this rule.
Protocol This field displays the transport layer protocol supported by this server.
Server IP Address This field displays the inside IP address of the server.
Local Port Range This field displays the port number(s).
Public Port Range
State This is the transport layer protocol used for the service.
Action Click the Disable icon to display and modify an existing rule setting in the fields under
Add Application Rule.
Click the Delete icon to delete a rule.
Chapter 10 Network Address Translation
NBG-418N v2 User's Guide
104