This document provides instructions for setting up port forwarding on TOTOLINK router models. It is a 3 step process that involves connecting your computer to the router, logging into the router's web setup interface, navigating to the port forwarding section, and adding a new port forwarding rule by specifying the protocol, internal port, external port, and a comment. The document encourages contacting TOTOLINK customer service if help is still needed with port forwarding after following the provided steps.