Hi I set up to control my pc at home following the tutorial on "HAMACHI AND VNC" from this website. It all work well but every times I connect to my pc at home, on the VNC VIEWER, the top of the screen says "AUTHENTICATION - NO ENCRYPTION". the IP address start with 5. irrespective of HAMACHI was running or not, I can connect.
My question is "IS THE CONNECTION SECURED?. HAS IT BEEN ENCRYPTED?".

Also if I have a local network (wireless), can I control other computer on the local network without transmitting thru INTERNET. Is there somewhere where I can set priority to use local connection or INTERNET.

Thank you for your helps.