Use  Interface:  Select  a  WAN  connection  to  which  you  wish  to  apply  the  rules.  When  there  is  only  one  WAN 
connection available, the rules will be automatically applied to it. 
  Application Name: Two options are available: 
- Select an application 
- Custom application 
  Trigger Port Start/Trigger Port End: The port range for an application to initiate connections. 
  Trigger Protocol: Select the protocol from the drop-down list. If you are unsure, select TCP/UDP.   
  Open Port Start/ Open Port  End: These are the starting number and ending number for the ports that will be 
automatically opened by the built-in firewall when connections initiated by an application are established. 
DMZ Host 
The  default  DMZ  (De-Militarized  Zone)  host  feature  is  helpful  when  you  are  using  some  online  games  and 
videoconferencing applications that are not compatible with NAT (Network Address Translation).   
 
   
DMZ Host IP Address: The IP Address of the device for which the router’s firewall will be disabled. Be sure to assign a 
static IP Address to that device. The DMZ host should be connected to  a LAN port of the device. Be sure to assign a 
static IP address to that DMZ host.