Remote control ask for for ports 49173 y 49154. Is it normal?

[bernardo]

When i began to use remote control, it ask only for port 5900, but now if I not enable ports 49173 y 49154 it shows error messages, like "remote wmi is not accesible", and more.
What roles these ports do?. It´s secure to enable them?

[Michael_V · Accepted solution]

First lsremote uses WMI to install the VNC service on the remote computer, after this is done vncviewer uses port 5900.

It is the WMI traffic that is using these ports.
I suggest enabling "remote administration" expection in the computer's firewall.