Aggiungo un'ultima cosa che ho trovato su libpacp:
More commonly known for the tool it facilitates - tcpdump, libpcap
lets you listen in on traffic that hits your interface (whether it be
ppp or eth or whatever). For ethernet it can also put your NIC into a
promiscuous mode, so that it will forward to IP the traffic that not
only is link-layer addressed to it, but to others on the same segment.
Of course, libpcap allows for no way of actually stopping packets from
propagating and no way to inject. In fact, libpcap is in many ways
orthogonal to divert sockets.
Quindi non capisco il controsenso di chiederci di usare libpcap... e poi ripensarci e chiedere di bloccare i pacchetti, senza poi scriverlo sul sito web!
