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Python Network Programming Cookbook by Dr. M. O. Faruque Sarker

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Sniffing packets on your network

If you are interested in sniffing packets on your local network, this recipe can be used as the starting point. Remember that you may not be able to sniff packets other than what is destined to your machine, as decent network switches will only forward traffic that is designated to your machine.

Getting ready

You need to install the pylibpcap library (Version 0.6.4 or greater) for this recipe to work. It's available at SourceForge (http://sourceforge.net/projects/pylibpcap/).

You also need to install the construct library, which can be installed from PyPI via pip or easy_install, as shown in the following command:

$ easy_install construct

How to do it...

We can supply command-line arguments, for example, the network ...

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