Since ipp2p hasn't been updated in 6 years and OpenDPI is no longer freely available (except within paid software from ipoque.com), it seems that nDPI from ntop is the only current DPI library available.
I need to block p2p and in the past was able to compile ipp2p into a kernal module and implement it using iptables. Does anyone know if its possible to use nDPI to filter p2p using iptables and if so, how can this be achieved?