Asus ZenWiFi XD4 PLUS User Manual page 42

To set up a Network Service filter:
1. From the navigation panel, go to Advanced Settings >
Firewall > Network Service Filter.
2. On the Enable Network Services Filter field, select Yes.
3. Select the Filter table type. Deny blocks the specified network
services. Allow 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
6. Click Apply.
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button.