METHOD FOR ANALYZING ILLEGAL COMMUNICATION ON NETWORK, SYSTEM FOR ANALYZING ILLEGAL COMMUNICATION ON NETWORK USING THE METHOD, AND RECORDING MEDIUM READABLE BY COMPUTER RECORDING NETWORK ILLEGAL COMMUNICATION ANALYSIS PROGRAM

摘要

PROBLEM TO BE SOLVED: To enable a system to handle optional data, to handle optional communication between networks, to facilitate coping with the increase in number of protocols and to handle arbitrary protocols. ;SOLUTION: This network illegal communication analysis system 50 analyzes illegal communication on a network, where communication is conducted between information communication stations according to a hierarchical protocol. The system 50 consists of a data collection section 55 that receives a packet PT transmitted on the network 3, a data generating section 56 that sets a parameter of a hierarchical module in response to the hierarchical protocol, based on information in a configuration file read in advance and processes a packet from the data collection section with each hierarchical module to generate analysis data DT, and a data analysis section 57 that discriminates the response of illegal commutation in the analysis data DT, based on the content described on the file.;COPYRIGHT: (C)1998,JPO