TuxCut is an application which protects your Linux machine from NetCut users (available for Windows). It hides your computer from local area network so the NetCut users won't see your presence on the network, so that they can't "cut" your Internet connection. TuxCut protection mode simply uses arptables to prevent sending or receiving any arp packets from any other host on the network, only the gateway allowed to do so. Netcut send an arp packet to see if your host live or not, arp tables prevents your host to receive such packet so that netcut can’t see you are connected :D