Patent ID: 7840688
Filing Date: 2010-11-23
Classification: H04L,Y02D

Abstract:
1. An information processing apparatus for connecting to a network to which a plurality of devices are connected, and executing a process of generating an access control list, comprising: a reception unit configured to receive a packet from a client that serves as an access requesting apparatus through the network; a storage unit configured to store a MAC list in which information for one client is set as registration data for one slot, the MAC list including a pre-determined number of empty slots that define openings in the MAC list for additional devices to be granted permission to access the information processing apparatus, the pre-determined number of the empty slots being set to change from empty to closed after a predetermined amount of time has lapsed, a closed slot being a slot on the MAC list that cannot be occupied by any device; a registration permission judgment unit configured to confirm whether or not there is an empty slot in the MAC list and to judge that a registration is permitted only if there is the empty slot in the MAC list, in a client registration process based on a received packet at the reception unit; a registration processing unit configured to acquire data containing a client MAC address from the received packet and to execute a registration process for the MAC list, in accordance with a judgment of the registration permission by the registration permission judgment unit; and a control unit configured to change the pre-determined number of the empty slots from empty to closed in response to the lapse of the predetermined amount of time so that no empty slots exist in the MAC list.