Find a valid / connected client (MAC Address).Find wireless network (channel, BSSID and ESSID) ( airodump-ng wireless_interface_in_monitor_mode).Put wireless interface in monitor mode ( airmon-ng start wireless_interface).The process of cracking the wep key for this scenario is Both adapters will work just fine, however I get better results with the proxim PCMCIA card because it has a range extender. My auditor laptop (and old IBM T22) runs backtrack beta 4, and has a PCMCIA network card (Proxim, Atheros chipset) and a Dlink USB Wireless Adapter (DWL-G122). In this scenario, I have 2 clients that are currently connected to the wireless network. The AP in my testlab uses MAC filtering and is configured to use WEP, using OPEN Authentication Method. To be honest, the main reason I’m putting this info on this blog because I just wanted it as a quick reference- or cheatsheet, in case I forget some about particular commands/parameters again :-) And why rely on other websites that may or may not be reachable when you need them :-) Scenario 1 : WEP encryption, OPEN Authentication, MAC filtering enabled, active client on network

So I guess this will be website zillion+1 learning how to audit your own WEP security. I know, there a probably already a zillion number of websites that show how to crack WEP.

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