说明：  在从事网络产品尤其是网络安全产品开发时，我们一直面临着一个问题，就是对产品的 TCP/IP 协议栈进行稳定性或安全性测试，确保开发产品在遇到各种不规则的错误的IP 包时仍可正常稳定高效地工作，我们知道，在正常的网络环境中，很难产生错误的IP 包，也很难产生我们想要的错误的IP 包，为此，要完成对产品的测试，我们必须自己来制造各种各样错误的IP 包，本篇的目的就是介绍如何利用各种发包工具来制造自己想要的错误的IP 包。
(When engaged in the development of network products, especially network security products, we have been faced with a problem, that is, the product TCP/IP protocol stack stability or safety testing, to ensure product development work, normal stable and efficient in the face of various irregular error IP packets can we know, in the normal network environment, it is difficult to produce the wrong IP package, it is difficult to produce what we want the wrong IP package, therefore, to complete testing of the product, we have to make all kinds of mistakes in the IP package, this article is to introduce how to use a variety of tools to the employer to make their own mistakes IP package.)