ZyXEL NBG-419N Guia Do Utilizador

Chapter 15 Network Address Translation (NAT)

NBG-419N User’s Guide

Refer to 

 for port numbers commonly used for particular 

services.

Figure 94   Network > NAT > Application 

The following table describes the labels in this screen.

Table 58   Network > NAT > Application

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.

Clear the checkbox to disallow forwarding of these ports to an inside 
server without having to delete the entry. 

Service Name

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.

Port

Type a port number(s) to define the service to be forwarded to the 
specified server.

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 IP address of the server on your LAN that receives packets 
from the port(s) specified in the Port field.

Application Rules Summary
#

This is the number of an individual port forwarding server entry.

Active

This icon is turned on when the rule is enabled. 

Name

This field displays a name to identify this rule.

Port

This field displays the port number(s).