Hi Michael, indeed there is a release of FreeRTOS+TCP which can use more that one physical interfaces, and also several IP-addresses per interface. We’re not releasing it yet because it is still in a testing phase. But if you write me an email, I will send you the source code of “FreeRTOS+TCP/multi”.
My email address is h [point] tibosch [at] freertos [point] org
Regards