Patent ID: 7127496
Filing Date: 2006-10-24
Classification: H04L

Abstract:
1. A communications relay device operatively connected between an external network and a local network in which a plurality of control terminals are connected, the communications relay device comprising: session control means for controlling a first session status of a first data communication session on a first of the plurality of control terminals in which data associated with the first session is received from the external network, and for controlling access to the first session in accordance with a processing request received from one of the control terminals, the session control means has a session control table that includes each session status for each data communication session on each of the control terminals in which data associated with the respective session is received from the external network via the communications relay device, each session status in the session control table including at least one permit address, each permit address corresponding to a respective one of the control terminals permitted to receive data associated with the respective session; and address conversion means for converting a destination address of data associated with the first session and received from the external network via the communications relay device, wherein: when the processing request is a resume request, said session control means rewrites the first session status in the session control table in accordance with the resume request from said one control terminal when the one control terminal providing the processing request corresponds to the at least one permit address of the first session status, and outputs an address rewrite processing request to said address conversion means, and said address conversion means rewrites the destination address of the data associated with the first session based on the address rewrite processing request from said session control means.