使用Fiddler在Windows上找到了这个(免费解决方案) http://www.logic-worx.com/index.php/tools-and-apps/fiddler-connection-simulator/

Take a look at the NE-ONE Network Emulator which allows you to configure bandwidth, latency, packet loss, packet reordering, packet duplication, packet fragmentation, network congestion and many more impairments so that you can create real-world network conditions in the lab. Different impairments can be configured for the up and downlink so you could have a really good uplink but a really bad downlink experience, great for seeing how the app handles TCP queuing because the acks don't come back in a timely manner and the overall latency therefore increases!

这里有一个专门针对游戏开发者的概述视频http://www.youtube.com/watch?v=DwtqlE7LcrQ，但它说明了它的内容。NE-ONE是使用web浏览器配置的，所以它真的很容易安装和配置-你不需要是一个网络专家:-)

有一个硬件版本- http://www.itrinegy.com/index.php/products/network-emulators/ne-one -或者你可以下载在VMware ESXi Server下运行的虚拟设备(软件)版本。虚拟设备可以从VMware的Solution Exchange - solutionexchange.vmware.com/store/products/ne-one-flex-network-emulator下载

有一篇很棒的关于如何设置一台FreeBSD机器的文章——使用你的标准旧桌面，加上一个额外的网卡，然后构建。

文章可以在http://www.freebsd.org/doc/en/articles/filtering-bridges/article.html上找到。

在上述指令的第5步中，您启用了防火墙。为了模拟不同的IP连接，你可以(例如)执行以下操作:

创建文件“/etc/rc.firewall”。56k，包含以下内容:

ipfw add pipe 1 ip from any to any out
ipfw add pipe 2 ip from any to any in    
ipfw pipe 1 config bw 56Kbit/s   
ipfw pipe 2 config bw 56Kbit/s

修改/etc/rc.conf…更换线路

firewall_type="open"

与

firewall_type="/etc/rc.firewall.56k"

重新启动，你就有了一个56K的桥!

如果你碰巧在Macintosh上工作，该操作系统默认内置了ipfw。我做了同样的事情，通过机场和以太网路由网络流量，设置它，以便任何经过机场的东西都具有与我试图模拟的东西相同的特征。可以直接在终端上调用ipfw命令，效果相同。

我想tc可以在基于UNIX的平台上完成这项工作。

tc用于配置Linux内核中的Traffic Control http://lartc.org/manpages/tc.txt

查尔斯

我遇到了Charles web调试代理应用程序，并在模拟网络延迟方面取得了巨大的成功。它可以在Windows、Mac和Linux上运行。

Bandwidth throttle / Bandwidth simulator Charles can be used to adjust the bandwidth and latency of your Internet connection. This enables you to simulate modem conditions using your high-speed connection. The bandwidth may be throttled to any arbitrary bytes per second. This enables any connection speed to be simulated. The latency may also be set to any arbitrary number of milliseconds. The latency delay simulates the latency experienced on slower connections, that is the delay between making a request and the request being received at the other end.

虚拟网

您也可以使用vmware来运行BSD或Linux，并尝试本文(DummyNet)或本文。

您可以试试这个:CovenantSQL/GNTE 就像这样写YAML:

group:
  - 
    name: china
    nodes:
      - 
        ip: 10.250.1.2
        cmd: "cd /scripts && ./YourBin args"
      - 
        ip: 10.250.1.3
        cmd: "cd /scripts && ./YourBin args"
    delay: "100ms 10ms 30%"
    loss: "1% 10%"
  - 
    name: us
    nodes:
      - 
        ip: 10.250.2.2
        cmd: "cd /scripts && ./YourBin args"
      - 
        ip: 10.250.2.3
        cmd: "cd /scripts && ./YourBin args"
    delay: "1000ms 10ms 30%"
    loss: "1% 10%"

network:
  -
    groups:
      - china
      - us
    delay: "200ms 10ms 1%"
    corrupt: "0.2%"
    rate: "10mbit"

运行。/generate scripts/your.yaml