Each manufacturer has different software that they use on their routers. Check your router documentation on how to navigate to 'Port Forwarding' page. Below is ARMS Setting to Setup Port Forwarding on a Router.
|Applications||Public Port||Private Port|
Navigate ARMS Backend on your browser to obtain server IP address.
On DLink’s routers, port forwarding page is at ADVANCED > ADVANCED PORT FORWARDING RULES.
On Innacomm routers (e.g W3410N), port forwarding page is at ADVANCED > NAT > VIRTUAL SERVERS.