C#/C ++捕获本地计算机ip数据包并将其丢弃

问题描述

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我正在做一个防火墙项目.到目前为止，我已经成功通过ip阻止了数据包，这是由Windows过滤平台完成的.但是我的客户不想阻止整个IP.他想阻止特定的URL.所以现在我需要捕获每个数据包并读取它.到目前为止，我可以通过C#raw socket做到这一点.但我不知道如何丢弃该特定数据包.请帮助我.

I am working on a firewall project. So far I succeed to block packets by ip basis which is I done by windows filtering platform. But my customer does not want to block the whole ip. He wants to block specific url. So now I need to capture each packet and read it. So far I can do that by C# raw socket. But I dont know how to drop that specific packet. Please help me out on that.

推荐答案

这对您有帮助吗?

http://www.osix.net/modules/article/?id=824

在本文中，作者以原始格式读取数据包，然后将其发送.我认为您可以以此为基础来做您想做的事.

In this article the author reads packets in raw format and then sends them on. I think you can probably use this as a basis for what you want to do.

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