I have ZTE ZXDSL 831II router. I want to block some websites (like facebook etc). I researched and found that it can be done from IP Filtering section under Firewall but I am not able to block any of the website as I am not fully able to understand the options there: Inbound Traffic, Outbound Traffic, Source IP Address, Destination IP Address
I think for Protocol I have to mention TCP (or ALL) and for port I have to give 80.
I have tried a lot but not able to achieve my goal, can anyone help to solve my problem?
PS: You can also see the attached images!