| US 7,512,687 B2 | ||
| System and method for assigning a mobile IP to a mobile node | ||
| Tae-Sung Jung, Sangju-shi (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Nov. 01, 2001, as Appl. No. 10/2,534. | ||
| Claims priority of application No. 2000-64643 (KR), filed on Nov. 01, 2000. | ||
| Prior Publication US 2002/0129150 A1, Sep. 12, 2002 | ||
| Int. Cl. G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—227 [709/249] | 11 Claims |
| 1. A system for providing a VPN (Virtual Private Network) service by connecting a VPN to a mobile communication network, comprising:
a home agent (HA) in which location information of a mobile node (MN) and information about the VPN service for the MN are
stored when the HA receives from the MN, a location registration request message for the VPN service;
a foreign agent (FA) for receiving location registration information from the MN, transmitting a location registration request
message to the HA, receiving information about the VPN service from the HA and transmitting data to an ISP (Internet Service
Provider) router in a same network as that of the FA, when receiving a VPN service request;
an ISP server positioned between the ISP router of the FA network and an ISP router of the VPN, for managing information on
the ISP routers and establishing IP tunneling between the ISP routers;
a router network for routing between the FA network and the VPN and for receiving and transmitting the data using an IP tunnel
to a correspondence node; and
a VPN server connected to the ISP router of the VPN, for providing the VPN service.
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