Shulou(Shulou.com)06/01 Report--

During the recent test, it is required to simulate network anomalies, and the department is unable to buy such high-end equipment as a network damage meter, so we can only look for alternatives. Found a good tool WANem.

(1) this thing can be downloaded from the official website.

Http://wanem.sourceforge.net/

There are many versions, just choose one, if the functional requirements are not harsh.

(2) after downloading and decompressing an iso, we can create a virtual machine and install it.

(3) after the installation, there is the cmd interface of wanem.

(4) you can set up an interface, but it is not very friendly, another way is to access through web, we implement exit2shell distribution network.

(5) then we can access http://ip/WANem through the browser.

(6) the following is his related operation page.

Network analysis, simple analysis to a remote ip network situation

Basic mode, with few setting parameters, just bandwidth and delay

Advanced mode, rich in setting parameters, such as packet error, packet loss, and can also apply the corresponding network settings according to the source destination address and port number of the message.

Parameters are explained and then added.

The WANem tool is implemented based on linux tc, and tc will be highlighted later. To deal with the general network anomaly simulation, I think WANem is enough.

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