BitDHT is a LGPL'd general purpose C++ Distributed HashTable library. It is designed to take hassle out over creating your own DHT. BitDHT is compatible with bitttorrent's DHT and can leverage this network to bootstrap your own personal DHT.
this pcap based project is used for capture tcp session. it use a sizeable hashtable to build a captured session table, and so can capture tcp session which begin with tcp syn or tcp syn+ack.
Entangled is a distributed hashtable (DHT) and peer-to-peer tuple space, based on Kademlia. It is written in Python, and makes use of the Twisted framework. This can be used as a base for creating peer-to-peer (P2P) network applications.