P2P File Sharing Software in IPv4/IPv6 Network

This paper designed and realized a P2P file sharing system (FSP2P) by using Java network programming. An adapter was contained in FSP2P. By using the adapter, FSP2P not only can be array to pure IPv4 or IPv6 network, but also can be array to IPv4/IPv6 coexistent network. So, it realized transparent connect between IPv4 and IPv6 in P2P file sharing system.