Communication system, relay device, and communication control method

摘要

A communication management table is provided to a gateway server 400 relaying data communication between Java-enabled MS 600 and Java-enabled CS 200 . Gateway server 400 refers to Java application related information included in a request message sent from the Java-enabled MS 600 and to a communication management table stored in gateway server 400 , thereby determining whether to permit the communication request. In a case that the communication request is determined to be rejected, gateway server 400 does not transmit the request message RQ to Java-enabled CS 200 ; instead, the gateway server sends a response message to Java-enabled MS 600 , indicating that the communication request will be rejected.