Patent ID: 7627689
Filing Date: 2009-12-01
Classification: H04L

Abstract:
1. An information processing system comprising: a first information processing apparatus connected with a first network and also connected with a second network via an address translator for addresses translation; a second information processing apparatus configured to perform communication with the first information processing apparatus; and a third information processing apparatus connected with the second network, for managing communication between the first information processing apparatus and the second information processing apparatus, wherein the first information processing apparatus requests the third information processing apparatus to provide information associated with connection of the second information processing apparatus; the third information processing apparatus provides an information associated with the connection of the second information processing apparatus to the first information processing apparatus; the first information processing apparatus determines, on the basis of the information provided by the third information processing apparatus, whether the second information processing apparatus is connected with a same network as that with which the first information processing apparatus is connected; and the first information processing apparatus performs communication with the second information processing apparatus such that if the second information processing apparatus is determined to be connected with the same network as that with which the first information processing apparatus is connected, communication with the second information processing apparatus is performed on the basis of a network-specific address defined on the first network, while if the second information processing apparatus is determined not to be connected with the same network as that with which the first information processing apparatus is connected, communication with the second information processing apparatus is performed on the basis of a different address than the network-specific address, said different address being a global address that is recognized on the second network.