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Thread: Wifi module in promiscuous mode for Layer7 Search

  1. #1
    Join Date
    2016-Jan
    Posts
    9

    Question Wifi module in promiscuous mode for Layer7 Search

    How do i set a wifi module in promiscuous mode to capture packets while connected to the AP?

    My Goal is to search for keywords on Layer7 that are unencrypted to switch outputs on match.

    Which wifi modules support promiscuous mode ( I dont need monitor mode support for this project)

  2. #2
    Join Date
    2016-Dec
    Posts
    581
    any packet capture tool such as Wireshark, tcpdump, tshark.

    All modules should support it.

  3. #3
    Join Date
    2016-Jan
    Posts
    9
    1) I meant which hardware usb wifi modules support promiscuous mode.
    And what commands to use in the terminal to enable promiscuous mode?

    2) When promiscuous mode is enabled while connected to the access point , will packets from other stations be decrypted as well (wpa)?

  4. #4
    Join Date
    2016-Dec
    Posts
    581
    1. ANY. tcpdump -i wlan0
    2. multicast or broadcast, most likely. Unicast (as in directed to other stations or AP to other stations, no).

  5. #5
    Join Date
    2016-Jan
    Posts
    9
    So communication between another station B and the access point cannot be seen from Station A connected to the same access point?

  6. #6
    Join Date
    2016-Dec
    Posts
    581
    That's what I wrote. Unless you do man in the middle attacks, you won't see someone else's traffic (unless broadcast/multicast, you may see that part).

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