Hi, I have a late 2011 Macbook Pro 17" with ML installed. My mac is getting connected to a LAN network through WIFI and there are some more windows computers and macs getting connected to the same network. Until recently, we had an option called "Client Isolation" enabled in the router but it is not being used any more due to a technical problem. How do I make sure that NOTHING is shared from my mac with other computers in the network? I have no access to any other computers in the network, so I cannot check by browsing from them. Any tips or suggestions would be highly appreciated! Thanks.