In the referenced thread, eziskind mentions "The VC agent still sends back heartbeats to udp port 902".
That communication does not appear to be on the diagram.
In my testing, both port 902 and 903 are required from the VI client to the ESX server to use remote console.
Port 902 is used to set up the connection, and then it is handed off to use port 903 for the data.
Good work, Jason. However, I'm missing the ports needed for Converter (I soon need to convert two physical machines that are behind a firewall). Any chance to add this?
Andreas
Interesting, VMware is abandoning the famous 902 port preferring the secured 443 port.