ZyXEL Communications 3.1 User Manual

Chapter 23 Content Filtering

ZyWALL (ZLD) CLI Reference Guide

mode to be able to use these commands. See 

 for details about the values 

you can input with these commands. 

content-filter General Commands

[no] content-filter active

Turns on content filtering. The 

no

 command turns it off.

[no] content-filter block message message

Sets the message to display when content filtering blocks 
access to a web page. The 

no

 command clears the setting.

[no] content-filter block redirect redirect_url

Sets the URL of the web page to which to send users when their 
web access is blocked by content filtering. The 

no

 command 

clears the setting.

[no] content-filter -timeout _timeout

Sets how long the ZyWALL is to keep an entry in the content 
filtering URL  before discarding it. The 

no

 command clears the 

setting.

[no] content-filter default block

Has the ZyWALL block sessions that do not match a content 
filtering policy. The 

no

 command allows sessions that do not 

match a content filtering policy.

[no] content-filter license license

Sets the license key for the external web filtering service. The 

no

 command clears the setting.

content-filter passed warning flush

Clears the ZyWALL’s record of sessions for which it has given 
the user a warning before allowing access.

content-filter passed warning timeout <1..1440>

Sets how long to keep records of sessions for which the ZyWALL 
has given the user a warning before allowing access.

[no] content-filter policy policy_number address 

Sets a content filtering policy. The 

no

 command removes it.

content-filter policy policy_number shutdown

Disables a content filtering policy.

content-filter url-server test bluecoat 

Enters the sub-command mode for testing whether or not a web 
site is saved in the BlueCoat external content filter server’s 
database of restricted web pages.

url [ server rating_server ] [ timeout 

query_timeout ]

Tests whether or not a web site is saved in the external content 
filter server’s database of restricted web pages.

exit

Leaves the sub-command mode.

content-filter url-server test commtouch 

Enters the sub-command mode for testing the Commtouch 
external content filter server’s reachability.

url timeout query_timeout

Specify the Commtouch server’s URL and how long to wait for a  
response.

exit

Leaves the sub-command mode.

content-filter zsb port <1..65535>

Sets the port the ZyWALL uses to check if requested web pages 
pose a threat to users or their computers. 

content-filter common-list {trust|forbid}

Enters the sub-command for configuring a common list of 
trusted or forbidden web sites. 

The content filtering profile commands let you configure trusted 
or forbidden URLs for individual profiles. URL checking is applied 
in the following order: profile trusted web sites, common 
trusted web sites, profile forbidden web sites, common 
forbidden web sites, and then profile keywords.