TP-Link TL-R480T+ manual  Service, Name, Dest. Port

4.6.4.4Service

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 4-47 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.
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