Netgear DGND3300v2 DGND3300 User Manual - Page 52
Blocking Access to Internet Services, Service Name, Service User, Triggering Port - range
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RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual Figure 3-9 2. Specify the information for port triggering: • Service Name. Enter a name for the rule, up to 30 characters. • Service User. The PC on the LAN that can use the Port Triggering rule to create a dynamic inbound mapping to it. There are 2 options: (1) the Port Triggering rule is applied to all PCs on the LAN. That is, any PC on the LAN can use the rule and make the router to open a dynamic mapping to it. (2) The Port Triggering rule is only applied to the user specified PC on the LAN. • Service Type. Defines whether the traffic is TCP or UDP. • Triggering Port. The destination port number of the traffic. That is, when there is a packet from a LAN PC, which the rule is applied to, with the specified Service Type and destined to the specified Triggering Port, the router creates a dynamic mapping rule to the LAN PC. • Required Inbound Connection. This defines what the dynamic mapping is. The Connection Type defines whether the dynamic mapping is for TCP traffic, UDP traffic, or TCP and UDP traffic. The open port range is specified by the Starting Port and the Ending Port, and this defines the port(s) that the dynamic mapping is applied to. 3. Click Apply to save your settings and activate the port triggers that you have enabled. Blocking Access to Internet Services The modem 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, 3-12 v1.0, September 2009 Protecting Your Network