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Another feature to solve application conflicts with the firewall is Universal Plug and Play (UPnP), described in “Using Universal Plug and Play” on page 5-14. Safeguarding Your Network v1.3, February 2009 NETGEAR Wireless-N Router WNR2000 User Manual Safeguarding Your Network v1.3, February 2009 Chapter 3 Restricting Access From Your Network This chapter describes how to use the content filtering and reporting features of the Wireless-N Router Model WNR2000 to protect your network. This chapter includes the following sections: • “Content Filtering Overview” • “Blocking Access to Internet Sites” • “Blocking Access to Internet Services” on page 3-3 • “Scheduling Blocking” on page 3-5 • “Viewing Logs of Web Access or Attempted Web Access” on page 3-6 • “Configuring E-mail Alert and Web Access Log Notifications” on page 3-7 • “Setting the Time Zone” on page 3-9 Content Filtering Overview The Wireless-N Router Model WNR2000 provides you with Web content filtering options, plus browser activity reporting and instant alerts through e-mail. Parents and network administrators can establish restricted access policies based on time of day, Web addresses, and Web address keywords. You can also block Internet access by applications and services, such as chat rooms or games. Blocking Access to Internet Sites The WNR2000 router allows you to restrict access based on Web addresses and Web address keywords. Up to 255 entries are supported in the Keyword list. Keyword application examples: • If the keyword XXX is specified, the URL is blocked. • If the keyword .com is specified, only websites with other domain suffixes (such as .edu, .org, or .gov) can be viewed. v1.3, February 2009 NETGEAR Wireless-N Router WNR2000 User Manual To block access to Internet sites: 1. Select Block Sites under Content Filtering in the main menu. The Block Sites screen displays. Figure 3-1 2. Enable keyword blocking by selecting either Per Schedule or Always. To block by schedule, be sure to specify a time period in the Schedule screen. For information about scheduling, see “Scheduling Blocking” on page 3-5. Block all access to Internet browsing during a scheduled period by entering a dot (.) as the keyword, and then set a schedule in the Schedule screen. 3. Add a keyword or domain by entering it in the keyword field and clicking Add Keyword. The keyword or domain name then appears the Block sites containing these keywords or domain names list. Delete a keyword or domain name by selecting it from the list and clicking Delete Keyword. 4. You can specify one trusted user, which is a computer that is exempt from blocking and logging. Specify a trusted user by entering that computer’s IP address in the Trusted IP Address fields. Restricting Access From Your Network v1.3, February 2009 NETGEAR Wireless-N Router WNR2000 User Manual Since the trusted user is identified by IP address, you should configure that computer with a fixed IP address. 5. Click Apply to save all your settings in the Block Sites screen. Blocking Access to Internet Services The WNR2000 router allows you to block the use of certain Internet services by computers on your network. This is called service blocking or port filtering. Services are functions performed by server computers at the request of client computers. For example, Web servers serve Web pages, time servers serve time and date information, and game hosts serve data about other players’ moves. When a computer on your network sends a request for service to a server computer on the Internet, the requested service is identified by a service or port number. This number appears as the destination port number in the transmitted IP packets. For example, a packet that is sent with destination port number 80 is an HTTP (Web server) request. To block access to Internet services: 1. Select Block Services under Content Filtering in the main menu. The Block Services screen displays. Figure 3-2 2. Enable service blocking by selecting either Per Schedule or Always, and then click Apply. To block by schedule, be sure to specify a time period in the Schedule screen. For information about scheduling, see “Scheduling Blocking” on page 3-5. Restricting Access From Your Network v1.3, February 2009 NETGEAR Wireless-N Router WNR2000 User Manual 3. Specify a service for blocking by clicking Add. The Block Services Setup screen displays. Figure 3-3 4. From the Service Type list, select the application or service to be allowed or blocked. The list already displays several common services, but you are not limited to these choices. To add any additional services or applications that do not already appear, select User Defined. To define a service, first you must determine which port number or range of numbers is used by the application. The service port numbers for many common protocols are defined by the Internet Engineering Task Force (IETF) and published in RFC1700, “Assigned Numbers.” Service numbers for other applicatio...