Login to your router — access the admin panel. Find DHCP reservation — look under "LAN", "DHCP", or "Address Reservation". Setting up TP-Link static routing creates a. I need information on what settings I need to configure on my router to access Internet via fiber optic modem. As far as I understand, I need a PPPoE username and password to connect. I never received it from Telekom, as well as Access number (Zugangsnummer). In this article I will guide you step by step. To set up your router for fiber internet quickly, connect the router to your fiber modem, access the router's settings via a web browser, and input the provided ISP credentials. With. These instructions are for customers who have a static IP (typically businesses).