NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual
— To specify a service for blocking, click Add. The Block Services Setup menu appears.
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—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.
Configuring a User Defined Service
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 applications are typically chosen from the range 1024 to 65535 by the authors of the application. Port number information can often be determined by contacting the publisher of the application, by asking user groups or newsgroups, or by searching.
—Enter the Starting Port and Ending Port numbers. If the application uses a single port number, enter that number in both boxes.
—If you know that the application uses either TCP or UDP, select the appropriate protocol. If you are not sure, select Both.
Blocking Services by IP Address Range
Under the heading Filter Services For, you can block the specified service for a single computer, a range of computers (having consecutive IP addresses), or all computers on your network.
Restricting Access From Your Network |