The airport utility is is not a sniffer program however, it can provide interesting information about the wireless LAN. The file format is your standard wireshark PCAP file that can be read on the MAC or Windows via Wireshark. Once you are finished with the trace, hit “Cntl-C” to stop the trace and the utility will display the name and location of the capture file.If you are using an Air, the wireless adapter is en0 rather than en1.You will lose any wireless connectivity to your network while the capture is occurring.You cannot specify the name of the capture file or where you will place the output.You will be prompted to enter in your account password for verification.“sudo /usr/libexec/airportd en1 sniff 11” Once you have a terminal window open, you can run the follow command to capture a Wireless sniffer trace on RF channel 11 (802.11b/g):.Use the “command” + “Space bar” key combo to bring up the search diaglog box in the upper right top of the screen and type in the word “terminal”, this will search for the terminal application, select this application to run it.If you are running OS X 10.6 (Snow Leopard) or above, then you can easily use the command line utility “ airportd”.
This document covers OS X 10.6 through 10.8. However, depending on what versions of OS X you are running, the commands may vary.
#Where to find wireless mac address on os x mac os x
Wireless sniffing on the Mac works well, as Mac OS X has built in tools to capture a wireless trace.
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