Unable to connect on premise backend system using RFC protocol from Cloud Connector 2.3

Hello Team,

I am using cloud connector sapcc-2.3.0-windows-x64 and following below link to access Function module from Cloud portal application.

SAP HANA Cloud Platform

Now I want to connect my on-premise backend (ECC) system from Access control of Cloud connector as mentioned into the document.

I am using RFC protocol and provided internal server details of my ECC box. However I am not sure what will be the Port no .

Can anyone please let me know what should add under Port no? and how can I find port no.

I checked SMICM which gives me HTTP and SMTP details and if I choose HTTP protocol I am able to establish a connection.

But for RFC protocol it gives me error "Internal host cannot be reached (time out)"

Below is my ECC box system details and what I entered under cloud connector configuration.

Please let me know what is going wrong here.

Please guide me to solve this.

Thanks & Regards,

Sambaran Chakraborty