In the Name field type a name for your device.At the top of the page select Advanced.This will take you to the control panel webpage for your modem.Type followed by your modem IP address into the address bar eg:.On your computer, open an internet browser.The IP address is on the underneath of your modem. You will need the IP address of your Telstra modem. Once you have the MAC address for your device or computer you’re ready to create its static IP address.