Which Gateway to use for Modbus TCP communication with XBee SX 868

We currently use Modbus TCP over Wifi to communicate with a 868.4 Mhz Jumo module.

We want to switch to using XBee SX 868.
Is there any Gateway (or other solution) we can use to communicate with a SX 868 using Modbus TCP over WiFi?

Modbus Message over Wifi - Wifi AP - Digi Gateway - SX868

The Gateway (or other hardware) would be connected to the Access Point (AP) using cable.