ZyXEL 35 Guia Do Utilizador

 

 

All contents copyright (c) 2006 ZyXEL Communications Corporation.   

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J. Content Filter FAQ 

Whenever a PC behind ZyXEL appliance issues HTTP requests to some public WEB server. ZyXEL 

appliance will forward the request to the targeted WEB server, but also issue an categorization query to 

BlueCoat data center. When the HTTP response is back to ZyXEL appliance, the appliance will hold the 

response for a while, and wait for the query result from the BlueCoat data center. If the query is not back 

within 10 seconds (by default setting), ZyXEL appliance will block (by default setting) the HTTP 

response to the PC. If the query is back, ZyXEL appliance will drop or forward the request according to 

the Content Filtering policy set in the appliance. The result of categorization query will be cached in 

ZyXEL appliance. Later on, HTTP requests to the same WEB server will be inspected by local cache. 

ZyXEL appliance can keep 1024 entries in the cache at most. Entries that are used less frequently will be 

overwritten first when the cache is full. Contents inside the cache will be cleared out after rebooting. 

Yes, you can change it on ZyXEL appliance. The default value of the time out is 10 seconds.  

Yes, you can set the policy, drop or forward, when query is timed out. The default policy is block. 

Either for free trial purpose or if you get PIN code by purchasing iCard, you need to initiate registration 

process from ZyXEL appliance by clicking Registration and Reports button from content Filter-> 

Categories page. 

Since the Registration job is between ZyXEL appliance and Http://myZyXEL.com server. Please make sure 

your Internet connection from ZyXEL appliance is ok first, and keep the connection between them online 

during the registration process. Since once the registration is granted on the

 

Http://myZyXEL.com server, 

Http://myZyXEL.com needs to feedback the result (either Successful or Fail) to ZyXEL appliance.