| 摘要 |
PROBLEM TO BE SOLVED: To inspect information received or outputted via a computer network, to prevent unauthorized access and the unintended leakage of information. SOLUTION: This information processor 1 has resistance against a high-load attack such as a DoS attack, because a processor 14 for a fire wall is provided separately from a main CPU 10. The processor 14 for the fire wall determines the propriety of transmission for a packet based on a transmission destination IP address detected from the transmitting packet and file information such as the significance of a file supplied from the CPU 10. The passing-through or rejection of the received packet is determined based on a filtering rule storage-held in a storage part 15. COPYRIGHT: (C)2004,JPO |
