How to start writting a packet sniffer in Linux?

[darren]

Hi all

I am a newbie trying to write a Packet Sniffer for WLAN based on either
the Cisco Card or the Linksys WPC11. I hope that I can also get to know
the OS better through this process.

How should I start?

Where can I get information on the way Net Packets are being handled by
Linux, and in particular, available APIs for me to base my development
on.

Any help will be greatly appreciated.

Thanx
Darren


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