1. Filter Mode: Select Forbid Only. 
2. Access Policy: Select an access policy number, say, 1, from the 
drop-down list. 
3. Policy Name: Briefly describe the current rule, say, youtube, (It 
can only consist of numbers, letters, or underscore). 
4. Start IP/End IP: Enter 2-254. 
5. URL Character String: Enter youtube. 
6. Time: Select 8:00-18:00.Day(s): Select Monday to Friday.     
7. Enable: Check the Enable box.   
8. OK: Click to save your settings. 
Note: Each rule can only include one domain name. Simply add 
more rules accordingly, if you want to filter multiple domain 
names.