Network ports for SAP Relay Server and SMP 2.3

Hi Expert,

I'm configuring a mobile solution based on Relay server, SMP 2.3, REx 3.2 and CRM server. I need some information/confirmation about the network ports I should open in my internal and external firewalls. Hereunder is reported the logical architecture and the ports that should be used:

Are the ports indicated correct? Do I have to consider further ports?

Any suggestion will be appreciated..

Thanks

g.