| 摘要 |
PURPOSE: A method for managing client information using an IP(Internet Protocol) address of a client is provided to manage a marketing effectively by discriminating a client using an inherent identifier corresponded to the client in the case that a fixed IP address is used or an address of a connected client is a floating IP address. CONSTITUTION: It is judged whether an IP address of a client being connected to a marketing server is a fixed IP address or a floating IP address. In case of a floating IP address, a query including the floating IP address is transmitted to an ISP(Internet Service Provider) which supplies the floating IP address. The ISP transmits an inherent identifier corresponded to the floating IP address to the marketing server. The marketing server transmits a fixed IP address of the client or the inherent identifier and marketing auxiliary information to a portal server. The client is confirmed using the fixed IP address of the client or the inherent identifier, and a processing job necessary for marketing is executed in the portal server from the marketing auxiliary information and client related information possessed in the portal server. Marketing supporting information calculated in the portal server through the processing job is transmitted to the marketing server. A marketing is executed by the marketing supporting information supplied in the portal server.
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