Research On Technology Of Nat Mobile Sms Aided Through Peer-To-Peer System

With the rapid development of mobile Internet, the development of the Internet into a new era, mobile will become the development trend of Internet Internet. With the rapid development of mobile Internet and mobile phone, intelligent terminal point to point communication and its application development is one of the most innovative vitality field, but through the NAT may become a bottleneck in the development of. Intelligent mobile phone as the terminal of peer-to-peer network communication, often by the NAT device isolation. In recent years, NAT technology got many many scholars of P2P traversal, and put forward many feasible schemes according to different types of NAT technology.Firstly, through the NAT technology and the mobile Internet is summarized, analyzes the key technologies; then analyzes and studies the current through the NAT technology, especially the ICE (Interactive Connectivity Establishment) protocol in-depth analysis and research, grasp the principle, the existing NAT technology through through key processes and data packet format, seize the advantages and disadvantages of NAT technology through the. ICE is a combination of the STUN protocol and TURN protocol, is a network framework, provides reliable transmission of voice or video call configuration and streaming media, through the SIP protocol requests and responses for endpoint network multiple candidate network address and port to complete the connection.Mobile phone intelligent terminal communication in peer-to-peer networks is also restricted, even through the computer terminal is more complex, but the message can reach to end. Based on various peer-to-peer system through the network of NAT, especially STUN, TURN and ICE protocol, proposes a new mobile phone intelligent terminal through the protocol in peer to peer network application NAT. Using mobile phone short message protocol auxiliary function intelligent completion NAT through, can simplify the rendezvous server function, reduce the demands on the server, extended application of intelligent mobile phone peer-to-peer communication. Design of SMS assisted ICE protocol SMAICE, gives its definition, its principle is described in this paper, analyses its performance and security, and is implemented in the Android mobile phone. The analysis and experiments show that, the SMAICE protocol has good security, and easy realization, is suitable for intelligent mobile phone peer-to-peer communication through NAT.