Configure LAN subnets on your Adtran C424G modem

Your broadband router can support multiple LAN subnet settings. Use the DHCP Settings page to configure the default IPv4 subnet.
  1. Connect a device directly to your modem.
  1. Open a web browser and go to
  1. Login to your modem by entering the Admin Username and Admin Password, then select "Apply." If your modem is using the default settings, this information is located on the modem sticker.
Learn more about password security best practices.
  1. Select "Advanced Setup."
  1. Select "LAN Subnets."
  1. View or edit the LAN Subnets settings.
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