Wifi module in promiscuous mode for Layer7 Search

[ForumKali2016]

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)

[Mister_X]

any packet capture tool such as Wireshark, tcpdump, tshark.

All modules should support it.

[ForumKali2016]

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)?

[Mister_X]

1. ANY. tcpdump -i wlan0
2. multicast or broadcast, most likely. Unicast (as in directed to other stations or AP to other stations, no).

[ForumKali2016]

So communication between another station B and the access point cannot be seen from Station A connected to the same access point?

[Mister_X]

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).