Configuring a 3G/4G modem using the Ethernet over USB protocol

The configuration of such modems requires the creation of a "USB stick / Modem" interface and needs the following parameters:

  • VendorId (VID): identifier of the modem vendor.
  • ProductIdInit: identifier of the product when it is initially detected as a storage device.
  • ModeSwitchString: string that allows switching from storage device mode to modem mode.
  • ProductId (PID): identifier of the product as a modem.

Once the modem is connected to the firewall and configured, the public IP address will be assigned to the modem, which will then act as a router for the firewall.