Possible to used Wifi and Ethernet simultaneous

I want to build at gateway. One side should use Ethernet (Modbus over TCP/IP) and the other side should use Wifi (MQTT). The Mbed OS documentation about the LwIP stack notes, that only one interface is supported by the LwIP stack. Therefore I am not sure, if it is possible to use Mbed OS to run Ethernet and Wifi simultaneous?

Best regards Raphael