nDPI is described as 'Ntop-maintained superset of the popular OpenDPI library. Released under the GPL license, its goal is to extend the original library by adding new protocols that are otherwise available only on the paid version of OpenDPI' and is an app in the network & admin category. There are 2 alternatives to nDPI for Linux, BSD, OPNsense, OpenWrt and pfSense. The best nDPI alternative is libprotoident, which is both free and Open Source.
Libprotoident is a library that performs application layer protocol identification for flows. Unlike many techniques that require capturing the entire packet payload, only the first four bytes of payload sent in each direction, the size of the first payload-bearing packet in...
The Netify Agent uses a modified version of the open-source nDPI deep packet inspection library.
