Netgear JR6150 - AC750 WiFi Router - 802.11ac Dual Band Gigabit Manuel D’Utilisation

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 players’ moves. When a computer on the Internet sends a 
request for service to a server computer, the requested service gets 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 the destination port number 80 is an HTTP 
(web server) request. 

The service numbers for many common protocols are defined by the Internet Engineering 
Task Force (IETF at 

) and published in RFC1700, “Assigned Numbers.” 

The authors of other applications typically choose service numbers for those applications 
from the range 1024–65535. Although the router already holds a list of many service port 
numbers, you are not limited to these choices. You can often find port number information by 
contacting the publisher of the application, by asking user groups or newsgroups, or by 
searching.

You can add and block specific Internet services by computers on your network. This process 
is called service blocking or port filtering. To add a service for blocking, first determine which 
port number or range of numbers the application uses. 

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Log in to the router.

Select ADVANCED > Security > Block Services.

Select either the Per Schedule radio button or the Always radio button.

If you selected Per Schedule, specify a time period in the Schedule screen.