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Title:
アプリケーション型サービス拒絶防御方法
Document Type and Number:
Japanese Patent JP4152356
Kind Code:
B2
Abstract:

To provide an application type denial-of-service protection method by which loads of a server and a time lag from detection to elimination can be reduced when protecting from DoS/DDoS attack, and also, the security can be improved without changing a current network composition and additionally installing new equipment.

When a destination address, a protocol, and a destination port of traffic coincide with the destination address, protocol type, and destination port, which are designated beforehand, on the basis of identification information, which is assigned to a user terminal, corresponding to the identification information regarding the traffic reaching from the user terminal, the band of the traffic is limited corresponding to the designated limited band. The traffic, whose protocol or destination port is other than the predesignated protocol type or destination port, is eliminated regarding the traffic addressed to a server and reaching an edge router connected with the server.

COPYRIGHT: (C)2006,JPO&NCIPI


Inventors:
Kaneko Hitoshi
Masaru Katayama
Takafumi Hamano
Application Number:
JP2004201663A
Publication Date:
September 17, 2008
Filing Date:
July 08, 2004
Export Citation:
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Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L12/22; H04L12/66; H04L45/50; H04L45/74; H04L47/2475
Domestic Patent References:
JP2004166029A
JP2003125022A
JP2002163162A
JP2004120498A
JP2002158699A
JP2003174482A
Attorney, Agent or Firm:
Naotaka Ide
Toshinao Shimodaira



 
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