Dell PowerConnect W-Series Instant Access Point 6.1.3.1-3.0.0.0 | User Guide Content Filtering | 137Chapter 13Content FilteringDell Instant uses OpenDNS to implement the Content Filtering feature. OpenDNS is a Domain Name System(DNS) resolution service provider. It offers features such as misspelling correction, phishing protection, andintegrated web content filtering. For more information on OpenDNS, refer opendns.com/.The Content Filtering feature allows you to create internet access policies that allow or deny user access towebsites based on the website categories and security ratings. This feature is useful to: Prevent known malware hosts from accessing your wireless network. Improve employee productivity by limiting access to certain websites. Reduce bandwidth consumption significantly.Content Filtering is based on per SSID, and up to four domain names can be configured manually. Whenenabled, all DNS requests to non-corporate domains on this wireless network are sent to OpenDNS.Enabling Content FilteringTo enable content filtering per SSID, perform the following steps:1. Click New in the Networks tab.2. Select Enabled from the Content Filtering drop-down list and click Next to continue.On startup, the IAP learns the default domain name via DHCP. This domain name also applies for ContentFiltering. Go to Settings > General > click Show advanced options > DHCP Server > Domain name toconfigure a domain name for a Virtual Controller assigned network. This domain name applies for ContentFiltering. When you select Virtual Controller assigned option, the client gets the IP address from the VirtualController. The Virtual Controller creates a private subnet and VLAN on the IAPs for the wireless clients, thisVLAN is called “virtual controller assigned networks”. The Virtual Controller NATs all traffic that passes out ofthis interface. See “Employee Network” on page 43 to select Virtual Controller assigned option and Chapter 7,“Virtual Controller” on page 92 for DHCP server configuration.NOTE: Regardless of whether content filtering is disabled or enabled, instant.dell-pcw.com is always resolved internally onInstant.