Vigor2120 Series Quick Start Guide
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1. Open Wizards>>Quick Start Wizard. Finish the password settings and
click Next.
2. Choose WAN2 as the WAN Interface and click the Next button.
3. In the following page, choose 3G/4G USB Modem(PPP mode) or 4G
USB Modem (DHCP mode) to open the configuration page. Fill in the
required information for 3G/4G USB Modem.