Netgear WNDR4000 User Manual download pdf (Page 39)

Chapter 4. Content Filtering Settings | 39

N750 Wireless Dual Band Gigabit Router WNDR4000 User Manual

3. Specify a service for blocking by clicking Add. The Block Services Setup screen displays.

4. From the Service Type list, select the application or service to be allowed or blocked. The list

includes several common services, but you are not limited to these choices. To add any

services or applications that are not listed, select User Defined.

Note: To define a service, first you have to know

the port number or range of

numbers used by the application. The service port numbers for many common

protocols are defined by the Internet Engineering Task Force (IETF at

http://www.ietf.org/) 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. You can often determine port number

information by contacting the publisher of the application, by asking user

groups or newsgroups, or by searching.

• If you kn

ow that the application uses either TCP or UDP, select the appropriate

protocol. If you are not sure, select Both.

• Enter th

e starting port and ending port numbers. If the application uses a single port

number, enter that number in both fields.

5. Select th

e radio button for the IP address configuration that you want to block, and then

enter the IP addresses in the appropriate fields.

You can block the specified service for a single computer, a range of computers (having

consecu

tive IP addresses), or all computers on your network.

6. Click Add to

enable your Block Services Setup selections.

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Netgear WNDR4000 User Manual Page 39