Description:

IPP2P is a netfilter extension to identify P2P filesharing traffic.
The main goal for developing IPP2P was giving the adminstrator a
dynamic tool to filter the traffic in an intelligent way. So it
doesn't aim at prohibiting all P2P traffic but make it possible to
shape this traffic to a given rate. For this purpose IPP2P searchs the
payload of TCP packets for signaling patterns of P2P networks. As
these patterns are not being present in all P2P packets we had to use
some other netfilter extensions in order to get the whole IPP2P
package working as already described. IPP2P works together with
connection tracking and connection marking - in that way you can catch
the bigger part of all P2P packets and limit the bandwidth rate.