Asus RT-AC68R - Manual (Page 78)

To set up a URL filter:
1. From the navigation panel, go to Advanced Settings >
Firewall > URL Filter tab.
2. On the Enable URL Filter field, select Enabled.
3. Enter a URL and click the
button.
4. Click Apply.
4.6.3 Keyword filter
Keyword filter blocks access to webpages containing specified
keywords.
To set up a keyword filter:
1. From the navigation panel, go to Advanced Settings >
Firewall > Keyword Filter tab.
2. On the Enable Keyword Filter field, select Enabled.