airodump is the first step in understanding the wireless terrain around you.
airodump is a command-line utility that monitors wireless traffic and dumps out the information it gathers into various file formats. this can reveal a tremendous amount of information.
Note that you need to be careful in how you run airodump on small headless devices, since if there is no standard input, airodump prints the entire list of clients/APs that it would otherwise print to the screen TO THE SYSTEM LOG, meaning it completely clutters the system log with trash and can potentially eat up gigabytes of space.
Airodump is one of the many tools included in the aircrack-ng suite. Run it by passing the first argument that is always the wireless network device, and the rest of the options being specified:
Note: also see Harvesting Wireless Network Information
Airodump can output information in multiple formats, so you'll want to specify some of those details on the command line using the
airodump-ng wlan1 -w mydump
If you don't specify anything except the -w flag, aircrack will output data in four different formats:
- pcap file
- csv file
- kismet.csv file
- kismet.netxml file
It will also activate the user interface to standard input.
you can specify which output format you want using the
--output-format flag. You can specify any one of the options
pcap, ivs, csv, gps, kismet, netxml.
airodump-ng wlan1 -w mydump -o csv airodump-ng wlan1 -w mydump -o ivs airodump-ng wlan1 -w mydump -o pcap
Here is the relevant section from help:
--output-format <formats> : Output format. Possible values: pcap, ivs, csv, gps, kismet, netxml Short format "-o" The option can be specified multiple times. In this case, each file format specified will be output. Only ivs or pcap can be used, not both.
Write interval for csv files
To create a new file to write to at specified intervals, most useful for csv files, use the
--write-interval <seconds> : Output file(s) write interval in seconds
If you run the help, you get the full list of options:
aircrack-nga suite of tools for wireless cracking.
Many Ways to Crack a Wifi: Cracking Wifi
Aircrack Benchmarking: Aircrack/Benchmarking
WEP Attacks with Aircrack: Aircrack/WEP Cracking
WPA Attacks with Aircrack: Aircrack/WPA Cracking
Aircrack Hardware: Aircrack/Packet Injection Testing
Basic Usage of Airodump
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