Can working on ModbusRtu with tcp server?

[Himmelt]

The sensor device working as modbusrtu server，connected to a gateway.
Gateway working as tcp client for transparent transmission，and will initiatively connect to the specific tcp server.

I want to know how to use FluentModbus create a tcp server to be connected by the gateway tcp client and communicate for modbusrtu?

[Apollo3zehn]

FluentModbus currently has no ModbusRtuOverTcpServer, there is only a ModbusRtuOverTcpClient:

The ModbusRtuOverTcpClient was added by an external contribution and because I have nearly no free time anymore the ModbusRtuOverTcpServer would need to be provided by an external contribution as well.