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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.娱乐界赫赫有名的经纪企划公司大老板世勋，偶然间遇到了不食人间烟火的山村姑娘伊玲，认为伊玲是个难得的明星材料，各种穷追猛打要将她收纳为自己公司的旗下艺人，而伊玲从小深受儒家教育思想熏陶，对做明星丝毫不感兴趣。两个性格如同水火一样的男女就此展开一段奇妙的缘分。世勋突然恍然大悟自己和伊玲不是伯乐和千里马的关系，而是从最初就是一见钟情。为了自己心爱的那个她，他展开了一段由“王子”变身“屌丝”的历程。For spoofing attacks, the first thing to consider is to choose the address. For the attack to succeed, the host on the spoofed IP address must not respond to any SYN-ACK packets sent to them. A very simple method that an attacker can use is to disguise only one source IP address, and this IP address will not respond to SYN-ACK packets, perhaps because there is no host on this IP address at all, or because some configuration has been made to the address or network properties of the host. Another option is to disguise many source addresses, and attackers will assume that hosts on some of these disguised addresses will not respond to SYN-ACK packets. To implement this method, you need to recycle the addresses on the list of source IP addresses that the server wants to connect to, or make the same modifications to hosts in a subnet.嘉靖长叹一声，这种感觉，他是没法对任何人提起了。秦淼宽慰她们道：这也不是什么好事，学医可吃苦了。