# US 2014/0195696 A1 · Information processing device, information processing method, and information processing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0195696 A1 - Document ID: US20140195696A1 - Status: Published application - Kind: A1 - Application number: 14/079,418 - Filed: 2013-11-13 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: SEIJI MIYAMA; NORIFUMI KIKKAWA - Web page: https://patentgrep.com/patent/US20140195696A1 ## CPC - H04L 45/741: Routing in networks with a plurality of addressing schemes, e.g. with both IPv4 and IPv6 - H04L 61/251: between different IP versions - H04L 61/4511: using domain name system [DNS] - H04L 61/2557: Translation policies or rules - H04L 61/5076: Update or notification mechanisms, e.g. DynDNS - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract There is provided an information processing device including a communication unit that transmits a domain name of a server belonging to a first network, and receives, from a mapping device that maps an IP address on a first network corresponding to the domain name to an IP address on a second network, an IP address on the second network that corresponds to the domain name, an estimator that, from the IP address on the second network received by the communication unit and the IP address on the first network of the server, estimates a mapping rule that maps an IP address on the first network to an IP address on the second network, and a generator that, on the basis of an estimated mapping rule, generates an IP address on the second network from an arbitrary IP address on the first network. ## Claims ### Claim 1 An information processing device comprising: a communication unit that transmits a domain name of a server belonging to a first network, and receives, from a mapping device that maps an IP address on a first network corresponding to the domain name to an IP address on a second network, an IP address on the second network that corresponds to the domain name; an estimator that, from the IP address on the second network received by the communication unit and the IP address on the first network of the server, estimates a mapping rule that maps an IP address on the first network to an IP address on the second network; and a generator that, on the basis of an estimated mapping rule, generates an IP address on the second network from an arbitrary IP address on the first network. ### Claim 2 (depends on 1) The information processing device according to claim 1, wherein the communication unit uses the IP address on the second network generated by the generator to conduct P2P communication with equipment on the first network. ### Claim 3 (depends on 1) The information processing device according to claim 1, wherein the IP address on the first network of the server is preregistered before product shipment. ### Claim 4 (depends on 1) The information processing device according to claim 1, wherein the IP address on the first network of the server is reported from the server via a translator. ### Claim 5 (depends on 1) The information processing device according to claim 1, wherein the IP address on the first network of the server is preregistered by being conveyed by an operator related to the server. ### Claim 6 (depends on 1) The information processing device according to claim 1, wherein the communication unit transmits the domain name multiple times, and receives an IP address on the second network corresponding to the domain name multiple times, and the estimator estimates the mapping rule from the IP address on the second network received by the communication unit multiple times, and the IP address on the first network of the server. ### Claim 7 (depends on 1) The information processing device according to claim 1, wherein the communication unit transmits domain names of a plurality of servers belonging to a first network, and plurally receives an IP address on the second network corresponding to the domain names of the plurality of servers, and the estimator estimates the mapping rule from the IP address on the second network plurally received by the communication unit, and the respective IP addresses on the first network of the plurality of servers. ### Claim 8 (depends on 1) The information processing device according to claim 1, wherein the estimator estimates the mapping rule in a case of sensing that the information processing device possesses only an IP address on the second network. ### Claim 9 (depends on 1) The information processing device according to claim 1, wherein the estimator estimates the mapping rule when communicating with equipment on a first network. ### Claim 10 (depends on 1) The information processing device according to claim 1, further comprising: a recording unit that records the mapping rule. ### Claim 11 An information processing method comprising: transmitting a domain name of a server belonging to a first network; receiving, from a mapping device that maps an IP address on a first network corresponding to the domain name to an IP address on a second network, an IP address on the second network that corresponds to the domain name; estimating, from the received IP address on the second network and the IP address on the first network of the server, a mapping rule that maps an IP address on the first network to an IP address on the second network; and generating, on the basis of an estimated mapping rule, an IP address on the second network from an arbitrary IP address on the first network. ### Claim 12 An information processing system comprising: a first device provided with an estimator that acquires an IP address in which an IP address on a first network corresponding to a domain name of a server belonging to a first network has been mapped to an IP address on a second network, and estimates, from the acquired IP address and the IP address on the first network of the server, a mapping rule that maps an IP address on the first network to an IP address on the second network; and a second device provided with a generator that, on the basis of a mapping rule estimated by the first device, generates an IP address on the second network from an arbitrary IP address on the first network.