You miss the point. It is unrelated to responding to broadcast pings -- thats perfectly fine behavior. The problem is one of sending to the broadcast address by accident, because that allows you to reply to a packet who's source address is the broadcast address without realizing that you might do so. .pm Mike Raffety says: > At my REQUEST, Wellfleet changed the behavior of their router software > so that it WOULD respond to broadcast pings (ones aimed at networks > on which the router has an interface directly attached, that is). In > general, routers do NOT know that a particular packet is directed to a > broadcast address; that's up to the end router to deal with, setting > a broadcast MAC address in the final hop. > > I frequently use "broadcast pings" to see what's on a network.