Knowing this, imagine that an attacker constructs an ICMP echo message containing the spoofed source address of some arbitrary Host a, such as 192.168.2.2, in its header.

知道了这一点，假设攻击者构造了一条IC MP回应消息，它的头中包含伪造的任意主机a的源地址，如192.168.2.2。

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Someone has "spoofed" your email address, making it look like the email originally came from you.

有人“欺骗”您的电子邮件地址，使它看起来像原来的电子邮件来自你。

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