This chapter covered the details of using scanners on three popular operating systems. It covered the advantages and disadvantages of using each platform and the details of configuring and using the major scanning tools on each. It also covered various stand-alone and integrated mapping tools. A brief overview of the packets that a passive scanner can use for identifying networks was also provided. Finally, we covered the details of creating and viewing pcap files without using a scanner on UNIX. Some of the most important points are reiterated here:
Choosing your operating system is very important because it determines what driver and applications you have access to.
Passive scanners will always gather more information than active ones.
You don't need a special tool such as Kismet to capture wireless packets; regular packet sniffers can do the job if you are interested in a specific channel