3Com WL-542 - Manual (Page 65)

Firewall 63
Content Filter
You can use the list on the Content Filter page to specify the type of
content that you want to filter out.
The Router comes with a 14-day free trial of the 3Com Content Filter
Service (3CSBCFS). To activate the 14-day free trial of the service, you
must first register your Router at www.3com.com. To continue using the
service after the trial period, you must purchase the 12-month
subscription license.
Figure 52 Content Filter Screen
To configure the Content Filter feature:
1 Select the server that you want to use from the Content Filter Server
drop-down menu. If the server you want to use is not listed, enter the
server address manually.
2 Define the time in the Server Timeout field (the default value is 3000ms).
If the Content Filter Server does not respond within this time period, the
Router will use the default content filter rule. The default rule is either
Allow or Deny None of the above (Uncategorized URL). You can configure
this rule at the bottom of the Content Filter page.
3 If you are not sure about your subscription status, click CHECK in
Subscription Filtering Status to find out if you have a current, valid
subscription.