@Kevin_Z This modem acts as usb-ethernet converter (also known "ethernet over usb").So deco m9 just need to support use new network interface as WAN port. If deco have linux kernel, then only routing...

Will deco support external usb modems, which is detected by computers (windows,linux,mac) as usb ethernet device and work without any driver installation? Currently modem indicate successfull 4g...