Whether you want to track down weird bugs related to broken network, or evaluate your application on poor connections, clumsy will come in handy: No installation. No need for proxy setup or code change in your application.

Here's a list of things used to build clumsy. WinDivert used to handle the magical Windows packet capturing/reinjecting. It installs network drivers at runtime and removes it when closing, encapsuled the underdocumented Windows Filtering Platform, does a bunch of things that non Windows developers can hardly figure out how in years.

Filtering: you often want to select a subset of interested network packets for clumsy to process. This is done by provide a filter to specify which IP, protocol, or other criterias. Capturing packets : clumsy needs to intercept the packets from your application so it can process it.

Over the years I noticed many games and projects are using clumsy during development for network trouble shooting. I think it would be cool to collect a listing here. If you shipped your game with help from clumsy and you're authorized to share this info, consider send me a mail at [email protected] and I'll add it to this page.

clumsy 能在 Windows 平台下人工造成不稳定的网络状况，方便你调试应用程序在极端网络状况下的表现。 简介. 利用封装 Winodws Filtering Platform 的WinDivert 库, clumsy 能实时的将系统接收和发出的网络数据包拦截下来，人工的造成延迟，掉包和篡改操作后再进行发送。无 ...

以下是有类似功能的软件，如果 clumsy 不能满足你的需求你可以试试这些。 Network Emulator for Windows Toolkit (Windows) - 微软提供的网络模拟工具。 ipfw or pfctl (FreeBSD/OSX) - BSD 下的网络模拟工具。

在 clumsy 里你可以提供一个 filter 来指定你感兴趣的数据包发送至/发送于某个 IP，包裹协议，以及一些其他的标准。 数据包捕获(Capturing packets) : 根据之前设定的 filter, clumsy 会拦截下这些符合标准的数据包。