MITM/Evil Twin
From charlesreid1
This covers a bit more in depth about how to follow up with an EvilTwin access point attack and use it to Man in the Middle a client computer.
The Evil Twin Setup
Once you've got an Evil Twin access point set up, you'll have a setup that looks something like this:
Evil Twin Access Point Devices:
wlan0
sheep ---> wlan1
at0--------+
| lucifer (bridge)
eth0 <----+
Recall that wlan1 is the device acting as an access point, and so the sheep is connected to wlan1.
The device at0 is created by airbase, and is a network connection for the client connected to wlan1.
We also created the lucifer bridge, which bridges the at0 network device (the client's internet connection) to eth0 (the network cable plugged into Mars, the attacker computer).