Patent ID: 8891551
Filing Date: 2014-11-18
Classification: H04L

Abstract:
1. A method of performing IPv6 over IPv4 transition to improve performance of a control server, the method comprising: selecting, by the control server, a router among a plurality of routers based on status information of the plurality of routers; receiving, by the selected router, a tunnel creation request message from the control server; transmitting a tunnel creation response message, in response to the tunnel creation request message, from the router to an IPv6 terminal through the control server; creating a tunnel between the router and the IPv6 terminal; performing IPv6 over IPv4 transition via the selected router, without involving the control server, upon a request for information on a reception terminal, which is received from the IPv6 terminal through the created tunnel; and forwarding data between the IPv6 terminal and the reception terminal through the created tunnel without involving the control server, wherein the status information of the plurality of the routers includes a number of tunnels that are currently set, a number of tunnels that can be added to be set, and an amount of data used for the tunnel.