My ADSL modem have router function intergrated, it's connected to main HUB of my LAN to share internet. The IP of ADSL router is hiden from all users so they must go to internet through a proxy server. I want to force them use proxy, do not go to internet straightly.
My problem is there are someone who can go to internet directly although they don't use proxy
Can you show me how they can do that and how to ban them going to internet straightly.
I make sure that there is no one know the IP of router. it's privated.