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1 Transcription of "IT168 Knowledge Base"在这之间，无数的人也在询问、催促开发新上海淘金的事情。No.53 Xinbo Fu (China)　　曹患刚灭，李自成又率起义军直逼京师，崇祯欲用长平公主远交近攻之策对付李自成。为应对清廷开出的皇族出使才能和谈的条件长平公主与周世显（刘松仁）假意成婚。周世显出使清廷，不料成功回来之日方知京城已被乱兵所破，崇祯自缢煤胡钧见她神情忽然落寞下来，顿时心里一沉，莫名抑郁悄悄蔓延。Suppose the attacker is in an "interconnected" network (e.g. An Autonomous system? System), whose ISP restricts the input and output filtering of the attacker's network traffic, will be able to prevent this spoofing attack-if this method can be deployed to the correct location by the organization. This defense method of traffic input and output filtering will restrict some legitimate communications, such as the mobile IP triangular routing operation mode, so it cannot be widely deployed. IP Security Protocol (IPsec) also provides an excellent way to resist spoofing packets, but this protocol cannot be used due to deployment restrictions. Since it is usually impossible for the server side to require the ISP of the link initiator to implement address filtering or require it to use IP security protocols, more complex solutions are needed to resist this spoofing attack disguised as multiple addresses, which will be discussed later.