首页> 外国专利> TECHNIQUE OF DEFENDING AGAINST NETWORK FLOODING ATTACKS USING A CONNECTIONLESS PROTOCOL

TECHNIQUE OF DEFENDING AGAINST NETWORK FLOODING ATTACKS USING A CONNECTIONLESS PROTOCOL

机译:使用无连接协议防御网络洪水攻击的技术

摘要

The invention prevents server overload and possible server crippling due to a flooding of connectionless datagrams caused by intentional attack or otherwise. In response to a datagram from a host for a specified port, the number of datagrams already queued to the port from the host is determined. If this number exceeds a first threshold, the datagram is discarded. In the preferred embodiment, the threshold is determined by multiplying a percentage P by the number of available queue slots remaining for the port.
机译:本发明防止由于有意攻击或其他原因引起的无连接数据报的泛滥而导致服务器过载和可能的服务器崩溃。响应于来自主机的指定端口的数据报,确定已经从主机排队到该端口的数据报的数量。如果该数目超过第一阈值,则丢弃该数据报。在优选实施例中,通过将百分比P乘以端口剩余的可用队列时隙的数量来确定阈值。

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