In the case that we need to open certain ports of our router, we have a free solution that will make the task much easier avoiding the need to access the somewhat complex configuration options of the router. We're talking about Simple Port Forwarding.
Simple Port Forwarding is an application specifically designed to open the FTP or UDP port connections indicated by the user from a list in more than 500 different router models. To do so, it includes a large self-updating database that's in continuous expansion, thanks to the collaboration of users.
Avoid complicated router configurations, thanks to Simple Port Forwarding.