ZyXEL NBG-418N User Guide - Page 105
Table 47, Label, Description
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Figure 75 Network > NAT > Application Chapter 10 Network Address Translation The following table describes the labels in this screen. Table 47 Network > NAT > Application LABEL DESCRIPTION Add Application Rule Active Select the check box to enable this rule and the requested service can be forwarded to the host with a specified internal IP address. Service Name Local Port Range Clear the checkbox to disallow forwarding of these ports to an inside server without having to delete the entry. Type a name (of up to 31 printable characters) to identify this rule in the first field next to Service Name. Otherwise, select a predefined service in the second field next to Service Name. The predefined service name and port number(s) will display in the Service Name and Port fields. Type a port number(s) to be forwarded. Public Port Range To specify a range of ports, enter a hyphen (-) between the first port and the last port, such as 10-20. Protocol To specify two or more non-consecutive port numbers, separate them by a comma without spaces, such as 123,567. Select the transport layer protocol supported by this server. Choices are TCP, UDP, or TCP&UDP. NBG-418N User's Guide 105