netcut

dear friends:
i think all of you know about the netcut program that some stupid
users use it on windows systems to prevent the other users on the same
lan from login to the internet,and there is asolution to this problem
on windows systems called anti-netcut, anybody knows asolution like
this can work on linux systems ?how can i prevent the users from using
this program to prevent my linux pox from contacting the gateway ?
thanks.

.

Loading