User Guide

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4.6.4.4 Service
The Service function allows you to specify the protocol and port number to be filtered for Firewall
function conveniently. Protocol name and port range constitute a service type. The router predefines
three commonly used services such as HTTP, FTP and TELNET and you can also add customized
services if needed.
Choose the menu Firewall→Access Control→Service to load the following page.
Figure 4-45 Service
The following items are displayed on this screen:
 Service
Name:
Enter a name for the service. The name should not be more than 28
characters. The name will display in the drop-down list of Protocol on
Access Rule page.
Protocol:
Select the protocol for the service. The system predefined protocols
include TCP, UDP and TCP/UDP.
Dest. Port:
Enter the start and end ports to make a destination port range for the
service. The start port number cannot be greater than the end port
number.