Specify the port range of the device protocol that the triggering 
port maps, that is, the layer-4 port number of the packets. 
Once the device accesses the triggering port, the service 
between the start port and end port will be enabled. 
The Start Port and End Port must be specified and meet the 
following conditions. 
 The end port number is larger than the start port number. 
 
 The difference between the end port number and the start port 
number is less than nine. 
The time when no traffic occurs 
 
2. 
Configure the port trigger parameters according to the request. 
3. 
Click Add. 
 
 
8.15 
Configuring Port Forwarding (Application List) 
 
 
This procedure introduces how to configure the port forwarding function. 
 
Prerequisite 
 
The application name has been created. 
 
Steps 
 
1. 
On the navigation tree, click [Application→Port Forwarding (Application List)]. The Port 
Forwarding (Application List) is displayed, see Figure 63.