NETWORK SYSTEM AND MANAGEMENT METHOD THEREOF, COMMUNICATION TERMINAL AND METHOD FOR SENDING PACKET

摘要

The object of the invention is to achieve seamless transition of applications between different protocols. A network system adopting a first IP protocol is provided. The network system comprises an address allocating server and a communication terminal supporting both the first IP protocol and a second IP protocol different from the first IP protocol, wherein the address allocating server dynamically allocating an address of the second IP protocol to the communication terminal. The communication terminal comprises a dynamic address manager for acquiring said dynamically allocated address of the second IP protocol of said communication terminal from the address allocating server and a second IP protocol address of the destination of a second IP protocol packet from a second IP protocol application, and an address adapter for encapsulating the second IP protocol packet from the second IP protocol application into a first IP protocol packet, wherein the second IP protocol address of said communication terminal in the header of the second IP protocol packet and the second IP protocol address of the destination are encapsulated into said first IP protocol packet.