| 摘要 |
PROBLEM TO BE SOLVED: To prevent a service from stopping due to leakage of a password and illegal excessive access. SOLUTION: When inputting a packet in S2, an access control part transmits authentication information to an authentication part in S3, and when receiving the authentication result in S5, the access control part transmits the authentication result and host information to a threat decision part in S6, and when receiving the threat decision result in S11, decides that the access request from a host computer is refused in a threat state, and decides to permit the access request from the host computer in a monitoring state based on the threat decision result in S12, and when the access request is permitted, requests SNMP processing to an SNMP processing part in S13, and receives a response packet in S15, and returns it to the host computer, and when deciding the refusal of the access request from the host computer, discards the received packet, and does not return the response packet in S18. COPYRIGHT: (C)2009,JPO&INPIT |
