ZyWALL 110: How to block all Internet-bound traffic while allow only WhatsApp and Viber

1) Setup Application Object called "app"

2) Add Application Rule 

3) In order to block all Internet traffic, please make sure you have selected all the categories.

4) To allow WhatsApp, please make sure you do not select WhatsApp in Instant messaging Category.

5)  To allow Viber, please make sure you do not select Viber in Voice over IP Category.

6) Apply rule to drop or reject selected categories using App Patrol. This will need IDP licence to be updated once. No continuous update required except new applications to be allowed.

7) Enable Content Filter to block all websites including HTTPS. Need Content Filter License.

8) Enable Policy Control.