您必须了解，当数据包离开主机时，没有任何神奇的规则可以确保其正确性。大多数支持 IP 的重要操作系统允许您在 IP 数据包中发送您想要的任何内容。
It means spoofing. Spoofing means sending a packet with a source IP that doesn't belong to you.
It's simple, really. The attacker sends a constant stream of packets to the victim and populates ip.src with 127.0.0.1 or 74.125.39.105 or something like that. It does this to hide his identity. If he didn't, you could go to his ISP "Hey, this guy is DoS'ing me! Shut him down".
You must understand that when a packet leaves a host there are not magic rules that ensure it's correct. Most serious operating systems that support IP allow you to send whatever you want in an IP packet.
攻击者可以向目标发送数据包并欺骗发送者 IP 地址。这意味着他可以使用任何他想要的 IP 地址。所以IP地址并不是真的无效，只是可能没有主机连接到该IP地址。
The attacker can send a packet to the target and spoof the sender IP address. This means he can use any IP address he wants. So the IP address is not really invalid, only there may not be a host connected to the IP address.
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它的意思是欺骗。欺骗意味着发送带有不属于您的源 IP 的数据包。
这很简单，真的。攻击者向受害者发送持续的数据包流，并使用
127.0.0.1或74.125.39.105或类似内容填充ip.src。这样做是为了隐藏他的身份。如果他不这样做，您可以去他的 ISP“嘿，这个家伙正在攻击我！把他关闭”。您必须了解，当数据包离开主机时，没有任何神奇的规则可以确保其正确性。大多数支持 IP 的重要操作系统允许您在 IP 数据包中发送您想要的任何内容。
It means spoofing. Spoofing means sending a packet with a source IP that doesn't belong to you.
It's simple, really. The attacker sends a constant stream of packets to the victim and populates
ip.srcwith127.0.0.1or74.125.39.105or something like that. It does this to hide his identity. If he didn't, you could go to his ISP "Hey, this guy is DoS'ing me! Shut him down".You must understand that when a packet leaves a host there are not magic rules that ensure it's correct. Most serious operating systems that support IP allow you to send whatever you want in an IP packet.
攻击者可以向目标发送数据包并欺骗发送者 IP 地址。这意味着他可以使用任何他想要的 IP 地址。所以IP地址并不是真的无效，只是可能没有主机连接到该IP地址。
The attacker can send a packet to the target and spoof the sender IP address. This means he can use any IP address he wants. So the IP address is not really invalid, only there may not be a host connected to the IP address.