Netgear JWNR2000 Инструкция по эксплуатации онлайн [43/108] 7828

Netgear JWNR2000 Инструкция по эксплуатации онлайн [43/108] 7828
Chapter 4. Content Filtering | 43
NETGEAR N300 Wireless Router JWNR2000v2 User Manual
To block access to Internet services:
1. Select Content Filtering > Block Services . The Block Services screen displays.
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 Schedule Blocking on page 45.
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.
5. If you do not see the service or application that you want to block in the list, select User
Defined.
To define a service or application, you need to know which port number or range of
numbers it uses. 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. You can often determine port number

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