Performing wireless reconnaissance
As with any type of penetration test, the first stage is to gather as much information about the target as possible by performing reconnaissance. Reconnaissance in wireless penetration testing allows you to discover nearby wireless clients, wireless routers, and access points, perform fingerprinting on wireless devices, and even determine the manufacturer of an access point. By gathering information about a wireless network and its device, you can research security vulnerabilities that can help you exploit and compromise the wireless network.
When performing reconnaissance on a wireless network, the penetration tester does not need to be associated with or connected to the target wireless network. Using a wireless network adapter that supports packet injection and monitor mode allows the penetration tester to listen and capture messages on the 2.4 GHz and 5 GHz bands of nearby wireless clients and access points.
To start performing reconnaissance...