Patent ID: 7406708
Filing Date: 2008-07-29
Classification: H04L

Abstract:
1. A method for controlling access to IP addresses for content using a domain name system, comprising the steps of: receiving requests for content at a name server from a plurality of network devices, wherein the name server is configured to receive requests for content from the plurality of network devices via a wide area network and is operably associated with a first memory holding a domain name table, the domain name table listing IP addresses for network content servers in association with domain names and with device identifiers for the network devices, and wherein each request for content comprises a domain name and a device identifier; determining, for ones of the requests for content, using the domain name table, corresponding ones of authorized network addresses each associated with a device identifier and a requested domain name in the domain name table, for each request in which the device identifier in the domain name table matches a device identifier included in the request, wherein the authorized network addresses comprise IP addresses; and responding to the requests for content by providing the authorized network addresses to requesting ones of the plurality of network devices.