| 摘要 |
PROBLEM TO BE SOLVED: To provide an IP address converter that can transmits reversely a communication text to a destination that has transmitted the text via a proxy server. SOLUTION: A proxy server 2 is provided with an IP address cross reference management table 10 that selects a virtual IP address as a tentative address for an IP address of a communication terminal in response to a 1st connection request signal addressed to a server from the communication terminal and stores the IP address of the communication terminal and the virtual IP address in cross reference and with an IP address conversion means 20 that sends the virtual IP address to the server with the 1st connection request signal in place of the IP address of the communication terminal, references the IP address cross reference management table 10 in response to a 2nd connection request signal to the virtual IP address from the server so as to acquire the IP address corresponding to the virtual IP address and conversely sends the 2nd connection request signal to the communication terminal.
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