Using Content Filtering

ZyXEL appliances support two types of content filtering, dynamic and static. For dynamic content filtering, ZyXEL is using solution provided by Cerberian (http://www.cerberian.com) With the Cerberian Integration Kit, ZyXEL integrates the Cerberian content filtering service into ZyXEL appliances, such as ZyWALL, Prestige, ZyAir series. The HTTP requests from internal PC are checked dynamically against Cerberian's data base. For the static one, users can setup the domain names they want to block/forward. Users can also block WEB servers by key words of the servers' domain names.

Step 1. Content Filter General Setup
Step 2. Register and Configure Dynamic Content Filter
Step 3. Configure Static Content Filter
Step 4. Checking report service from Cerberian Service

Appendix: Restore Registration status after reset to factory default

Step 1. Content Filter General Setup

1. Go to SECURITY->CONTENT FILTER->General
2. Check "Enable Content Filter"
2. Select Web Features you would like to block, such as Active X, Java...etc.
3. Setup the period you would like to apply content filter.
4. Input the message to be displayed on Internal users' PC when a WEB access was blocked by content filter.
5. Specify the PCs either to be included in or excluded  from management of content filter.
6. Press Apply button.

Step 2. Register and Configure Dynamic Content Filter

1. Enable Web Site Auto Categorization.
2. Check options of Block and Log matched web sites.
3. Select the categories you want to block.
4. Click Apply button to save the settings.
5. If it's the first time you use Web site auto categorization, then click Registration button to register.

6. After clicking Register button, you would be redirected to ZyXEL my.ZyXEL.com server. Click Content Filtering Trial.

7. Click Apply button.

8. Enter required information in User Profile. Then click Apply button.

9. When the user profile is written in my.ZyXEL.com database, a successful message would be displayed. Click Close Window.

10. Refresh WEB GUI of ZyXEL appliance to check the registration status. It should be Registered.

Step 3. Configure Static Content Filter

Go to Content Fitler -> Customization.

1. Check Enable Web Site customization.
2. Add the URL you want to allow in Trusted Web Sites.
3. Add the URL you want to block in Forbidden Web Sites.
4. Check Block Web Sites which contain these key words. Then click Apply button.

Step 4. Checking report service from Cerberian Service

1. Go to ZyWALL's WEB interface, Content filter -> Categories -> Register button.
2. You will be directed to my.ZyXEL.com page, click Content Filtering Report.

3. Input User Name and Password. Name = ZyWALL's WAN MAC address, Password = the password you specified during registration process.

4. After login successfully, select Reports tab. Select Data Range for example Last 24 Hours. Then click Run Report.

5. Then you would get reports like this.

Appendix: Restore Registration status after reset to factory default

1. For some reason, you may reset your device to factory default. The registration status will also be erased after resetting the configuration file. To restore the registration status, you need to go to WEB GUI, click Register button in Content Filter -> Categories. Then you would be redirected to my.ZyXEL.com web,

2. In my.ZyXEL.com web site, click Registration Status.

3. Click Refresh button. Please note that you should keep you ZyWALL online when clicking Refresh button.