ASUS DSL-AC52U 用户手册

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The Network Services Filter blocks LAN to WAN packet exchanges 

and restricts network clients from accessing specific web services 

such as Telnet or FTP.

To set up a Network Service filter:
1.  From the navigation panel, go to Advanced Settings > 

Firewall > Network Service Filter tab.

2.  On the Enable Network Services Filter field, select Yes.
3.  Select the Filter table type. Black List blocks the specified 

network services. White List limits access to only the specified 

network services.

4.  Specify the day and time when the filters will be active. 
5.  To specify a Network Service to filter, enter the Source IP, 

Destination IP, Port Range, and Protocol. Click the 

button.

6. Click 

Apply.