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D810R ADSL2+ Router User Guide 
2) 
Click “Add” to display 
the 
window shown in 
the right figure. 
a. 
Select a Service: 
Selecting the service to 
be enabled. 
b. 
Custom Server: 
Manually entering the 
server name. 
c. 
Server IP Address: LAN 
IP address for the 
server. 
Caution: After a service is 
selected, the system 
automatically opens 
the corresponding 
port. After you 
manually enter a 
customized service, 
you need to manually 
enter the port to be 
opened. 
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D810R ADSL2+ Router User Guide 
d. Click “Save/Apply” to 
display the service 
added, as shown in the 
right figure. 
5.2.3.2 Port Triggering 
1)
Click “Port Triggering” to 
display the window 
shown in the right figure. 
Here, you can add or 
delete your port 
triggering service 
settings. 
For some special 
applications, you need to 
enable some application 
ports. Through the port 
triggering, you can enable 
the automatic opening of 
the ports required by 
applications. 
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D810R ADSL2+ Router User Guide 
2)
Click “Add” to display the 
window shown in the 
right figure. 
a. 
Select an application: 
Selecting the name of 
the service to be 
enabled. 
b. 
Custom application: 
Manually entering the 
service name. 
Caution: After a service is 
selected, the system 
automatically sets the 
corresponding port. After 
you manually enter a 
customized service, you 
need to manually enter 
the port to be triggered. 
3) 
Click “Save/Apply” to 
display the service added, 
as shown in the right 
figure. 
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D810R ADSL2+ Router User Guide 
5.2.3.3 DMZ Host 
1.
Click “DMZ Host” to 
display the window 
shown in the right 
figure. 
2.
DMZ Host IP Address: 
Entering the LAN IP 
address for the DMZ 
host. 
Caution: Opening DMZ 
means to open all 
ports. In this case, 
your computer is 
totally exposed to the 
public network. Be 
cautions to use this 
function. Click 
“Save/Apply” to 
activate the settings. 
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D810R ADSL2+ Router User Guide 
5.2.3.4 UPNP 
1) Click “UPNP” to display 
the window shown in the 
right figure. Enable 
UPnP: Check to Enable 
the UPnP (Universal Plug 
and Play) function. 
UPnP is a kind of 
architecture of common 
network connection 
between the computer 
and intelligent 
devices/instruments. It 
is especially common in 
the family application. 
Based on the Internet 
standards and 
technologies (such as 
TCP/IP, HTTP and XML), 
UPnP enables automatic 
connection and 
cooperation between 
such devices, thus to 
make more people can 
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