TL-WR543G 54M Wireless AP Client Router User Guide
 
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1)  When the trigger connection is released, the according opening ports will be closed. 
2)  Each rule allowed to be used only by one host on LAN synchronously. The trigger connection 
of other hosts on LAN will be refused. 
3)  Incoming Port Range cannot overlap each other. 
4.8.3 DMZ 
The DMZ host feature allows one local host to be exposed to the Internet for a special-purpose 
service such as Internet gaming or videoconferencing. DMZ host forwards all the ports at the 
same time. Any PC whose port is being forwarded must have its DHCP client function disabled 
and should have a new static IP Address assigned to it because its IP Address may change when 
using the DHCP function. You can set up DMZ host on this page shown in 
Figure 4-33: 
 
Figure 4-34  DMZ 
To assign a computer or server to be a DMZ server:   
1. Click the Enable radio button 
2.  Enter the local host IP Address in the DMZ Host IP Address field 
3. Click the Save button. 
) 
Note: 
After you set the DMZ host, the firewall related to the host will not work. 
4.8.4 UPnP 
The Universal Plug and Play (UPnP) feature allows the devices, such as Internet computers, to 
access the local host resources or devices as needed. UPnP devices can be automatically 
discovered by the UPnP service application on the LAN. You can configure UPnP on this page 
that shown in 
Figure 4-35: 
 
Figure 4-35  UPnP Settings 
¾  Current UPnP Status - UPnP can be enabled or disabled by clicking the Enable or Disable 
button. As allowing this may present a risk to security, this feature is disabled by default.   
¾  Current UPnP Settings List - This table displays the current UPnP information.