Method For Ipv4 Application Transition Over Ipv6 Networks

A method of managing a network system adopting a first IP protocol, the network system comprising a communication terminal supporting both the first IP protocol and a second IP protocol different from the first IP protocol, the method comprising:

• in said communication terminal, acquiring a dynamically allocated address of the second IP protocol of said communication terminal from an address allocating server and a second IP protocol address of a destination of a second IP protocol packet from a second IP protocol application;
• in said communication terminal, 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, and
• in said communication terminal, sending out said encapsulated first IP protocol packet.

A communication terminal supporting both a first IP protocol and a second IP protocol different from the first IP protocol, the communication terminal coupled to an address allocating server for dynamically allocating an address of the second IP protocol thereto, said 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, and
• said communication terminal sends out is configured to send said encapsulated first IP protocol packet.

A method of sending packets for a communication terminal supporting both a first IP protocol and a second IP protocol different from the first IP protocol, the communication terminal connected to an address allocating server for dynamically allocating an address of the second IP protocol thereto, characterized in that, the method comprising:

• acquiring a 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
• in said communication terminal, 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, and
• in said communication terminal, sending said encapsulated first IP protocol packet.

(canceled)