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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.The code is as follows:Symantec Endpoint Protection 12.1Raw table: Turn off the connection tracking mechanism enabled on NAT table; Iptable_raw徐文长每次面对这个问题都与胡宗宪针锋相对，东海若平，我等必死。Abnormal promotion method: improve the hit number of abnormal attack judgment, self-strength and intelligence, forge independent and poison attack promotion equipment范文轲笑道：任何时候都要未雨绸缪，令尹此番率军出征，情况比任何时候都危急。