Login to the TEW-657BRM by entering https://192.168.10.1 into the address line of your browser.
The default User Name and Password are both "admin", without the quotes.
Click on Advanced>Port Forward on the left hand side. The following example shows how to forward TCP port 80 to IP address 192.168.10.150 and enable it.
To forward a range of ports click on Advanced>Port Range Forward. The following example shows how to forward a range of ports, TCP port 4000 ~ 4010, to IP address 192.168.10.150.