Monoprice PID 8743 Wireless N ADSL2 Modem and Router 802 11N WPS Function 2T2R 300Mbps - Manual (Page 73)

ADSL2/2+ Router
- 73 -
Internet user only needs to enter ftp：//183.37.227.201 or
http：//183.37.227.201 in Web browser address field to access your
FTP or Web server respectively.
4.2.6 Port Triggering
Some application programs or network business (such as network
game, video conference, etc) can not work with simple NAT router due
to the isolation caused by router’s built-in firewall. Therefore, proper
configuration is needed. When application program initiates a
connection toward the triggering port, all correspondingly open ports
will be enabled to implement successful connection and service.
Click “Advanced Setup”
“NAT”“Port Triggering” to enter the port
triggering interface and then click the “Add” button to add rules.