Netgear DGFV338 사용자 설명서

6-6

Router and Network Management

See 

 for the procedure on 

how to use this feature.

Port triggering allows some applications to function correctly that would otherwise be partially 
blocked by the firewall. Using this feature requires that you know the port numbers used by the 
Application. 

Once configured, operation is as follows: 

•

A PC makes an outgoing connection using a port number defined in the Port Triggering table. 

•

This Router records this connection, opens the additional INCOMING port or ports associated 
with this entry in the Port Triggering table, and associates them with the PC. 

•

The remote system receives the PCs request and responds using the different port numbers that 
you have now opened. 

•

This Router matches the response to the previous request and forwards the response to the PC. 
Without Port Triggering, this response would be treated as a new connection request rather 
than a response. As such, it would be handled in accordance with the Port Forwarding rules.

–

Only one PC can use a Port Triggering application at any time. 

–

After a PC has finished using a Port Triggering application, there is a time-out period 
before the application can be used by another PC. This is required because the firewall 
cannot be sure when the application has terminated. 

See 

 for the procedure on how to use this feature.

The wireless firewall permits up to 50 VPN tunnels at a time. Each tunnel requires extensive 
processing for encryption and authentication. 

See 

” for the procedure on how to use this feature.

The QoS priority settings determine the priority and, in turn, the quality of service for the traffic 
passing through the firewall. The QoS is set individually for each service.

•

You can accept the default priority defined by the service itself by not changing its QoS 
setting.