| Security |
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Block Sites |
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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.
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Content Filtering |
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To enable content filtering on the router, select the
Yes
check box under
Turn keyword Blocking On?
Select
No
to disable content filtering. By default the content filtering is disabled.
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Web Components |
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Certain commonly used web components can be blocked for increased security. Some of these components can be used by malicious websites to infect computers that access them. Select the checkbox next to the component you wish to block:
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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. |
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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. |
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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.
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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.
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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. |
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Keyword Blocking |
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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. |
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Apply Keyword Blocking to |
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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.) |
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Blocked Keywords |
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Displays the list of the blocked keywords. A single keyword can be up to 63
characters in length. |
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Click
Edit, to modify or change the selected
keyword in the list. |
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Click
Select All to select all the keywords in
the list. Click
Delete to remove the selected keywords. |
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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. |
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Trusted Domains |
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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. |
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Click
Edit to modify or change the selected
domain name. |
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Click
Select All to select all the domains in the
list. |
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Click
Delete to remove the selected domains. |
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Add Trusted Domain |
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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.
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Click
Apply to submit your changes. |
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Click
Reset to revert to the previous
settings. |
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