Title:
METHOD FOR PREVENTING FLOOD ATTACK USING CONNECTIONLESS PROTOCOL
Document Type and Number:
Japanese Patent JP2001265678
Kind Code:
A
Abstract:
To provide a method for preventing the overload of a server and the projected function stoppage of the server due to the flood of connectionless datagrams caused by an intentional attack or the like.
The number of the datagrams from a host already standing by in the queue of a port is obtained in response to the datagram from the host to a specified port. In the case that the number exceeds a first threshold, the datagram is abandoned. In a suitable execution example, the threshold is obtained by multiplying the number of usable queue slots remaining in the port with a ratio P.
Inventors:
ATTWOOD KIRA STERLING
OVERBY JR LINWOOD HUGH
SUN CHIEN EN
OVERBY JR LINWOOD HUGH
SUN CHIEN EN
Application Number:
JP2001026567A
Publication Date:
September 28, 2001
Filing Date:
February 02, 2001
Export Citation:
Assignee:
IBM
International Classes:
G06F13/00; G06F15/00; H04L12/56; H04L29/06; (IPC1-7): G06F13/00
Attorney, Agent or Firm:
Hiroshi Sakaguchi (2 outside)
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