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METHOD AND APPARATUS FOR PREVENTING NETWORK ATTACKS BY AUTHENTICATING INTERNET CONTROL MESSAGE PROTOCOL PACKETS
METHOD AND APPARATUS FOR PREVENTING NETWORK ATTACKS BY AUTHENTICATING INTERNET CONTROL MESSAGE PROTOCOL PACKETS
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机译:通过验证互联网控制消息协议包来防止网络攻击的方法和装置
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摘要
A method of preventing an attach on a network, the method comprising the computer-implemented steps of receiving an ICMP packet (202) that includes a copy of a header associated with a connection in a connection-oriented transport protocol; obtaining a packet sequence value from the header (204); determining if the packet sequence value is valid (206); and updating a parameter value associated with the transport protocol connection only if the packet sequence value is determined to be valid. Use of the disclosed method enables authenticating ICMP packets (202) so that responsive measures of a network element, such as adjusting an MTU value, are performed only when the ICMP packet (202) is determined to be authentic.
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