Block Sites
This router supports a content filtering option using which access to certain Internet sites can be blocked. Up to 32 key words in the site's name (web site URL, newsgroup name, etc.) can be specified, which will cause the access to the site be blocked.
Content Filtering
To enable content filtering on the router, select the Yes check box under Turn keyword Blocking On? Select No to disable content filtering (this is the default).
Web Components
Certain commonly used web components can be blocked for increased security. Some of these components are can be used by malicious websites to infect computers that access them. Select the checkbox next to the component you wish to block:
v Proxy: A proxy server (or simply, proxy) allows computers to route connections to other computers through the proxy, thus circumventing certain firewall rules. For example, if connections to a specific IP address are blocked by a firewall rule, the requests can be routed through a proxy that is not blocked by the rule, rendering the restriction ineffective. Enabling this feature blocks proxy servers.
v Java: Blocks java applets from being downloaded from pages that contain them. Java applets are small programs embedded in web pages that enable dynamic functionality of the page. A malicious applet can be used to compromise or infect computers. Enabling this setting blocks Java applets from being downloaded.
v ActiveX: Similar to Java applets, ActiveX controls install on a Windows computer running Internet Explorer. A malicious ActiveX control can be used to compromise or infect computers. Enabling this setting blocks ActiveX applets from being downloaded.
v Cookies: Cookies are used to store session information by websites that usually require login. However, several websites use cookies to store tracking information and browsing habits. Enabling this option filters out cookies from being created by a website.
v Note: Many websites require that cookies be accepted in order for the site to be accessed properly. Blocking cookies may cause many websites to not function properly.
Keyword Blocking
A commonly used content filtering feature is Keyword Blocking. All website names (web site URL, newsgroup name, etc.) or pages that contain the specified word will be blocked by the router. To block keywords or Internet domains, select the Yes check box under Turn Content Filtering On? Select No to disable keyword blocking.
Apply Keyword Blocking to
Select the Known Host Groups for which, key word blocking should be enabled. All requests from IP addresses that are part of the group or list of groups will be filtered. Filtering does not apply to hosts that belong to groups that are not selected. (LAN groups can be defined on the LAN Groups page under the Network Configuration menu.)
Blocked Keywords
Displays the list of the blocked keywords. A single keyword can be up to 63 characters in length.
Click Edit, to modify or change the selected keyword in the list.
Click Select All to select all the keywords in the list. Click Delete to remove the selected keywords.
Add Blocked Keyword
Type a keyword in the Blocked Keyword field and click the Add. The word appears in the Blocked Keywords list. Up to 64 keywords can be added to the list.
Example: If yahoo is added to the list, any website containing the word yahoo in its URL or page contents will be blocked.
Trusted Domains
Trusted domains are Internet sites for which content filtering maybe bypassed. The Trusted Domain table lists the currently defined trusted domains. Up to 64 domains can be added to the list.
Click Edit to modify or change the selected domain name.
Click Select All to select all the domains in the list.
Click Delete to remove the selected domains.
Add Trusted Domain
Type a domain name in the Trusted Domain field and click Add. The domain will appear in the Trusted Domain list. Any number of domain names can be added to the list. Those names entered in the Trusted Domain list will be bypassed by Keyword filtering. Example: If yahoo is added to the Blocked Keywords list and
www.yahoo.com is added to the Trusted Domain list, then
www.yahoo.com will be allowed but mail.yahoo.com will not allowed.
Click Apply to submit your changes.
Click Reset to revert to the previous settings.
Problems? See this thread at archive.org.
