I'm lookong for a 2x2 MIMO USB WLAN adapter (802.11ac or 802.11n) that can reliable capture packets. Should work in Linux or in Windows 7/8/10 with Npcap.
Can someone confirm an adapter that works?
asked 27 Dec '16, 11:58
I can confirm a 3x3 802.11n USB adapter that works with Linux (recent kernel!) and Windows (Omnipeek). This does 2.4 and 5GHz bands.
One Netgear variant:
As well, the Savvius 802.11n adapters use the same chipset, so they work just the same as would just about any device with this chipset:
I can't help with npcap - never works for me as I always get a BSoD. Good luck - maybe others can help you get something going with this. I looked forward to when it is stabilized.
The Savvius 802.11ac adapter is crappy - very poor Rx strength so do not recommend it unless you really need to do 802.11ac, but even then, I would still look for another solution. Does not work in Linux, either: can compile a STA driver but no monitor mode support.
The AirPcap Nx is weak - does not support short guard interval so you will likely miss a LOT of traffic, so that fails your reliable requirement but is 2x2 802.11n. Works nicely in Windows for what it does capture unless you use Windows7 & USB3 (we do... and no, it doesn't work then), and Linux enumerates it as:
It looks like it uses the carl9170 driver on my 4.8 series kernel:
Only problem is that all the chipsets that I have that use the carl9170 driver support monitor mode, however, they do not do promiscuous mode. I understand this to be a kernel regression in the driver from a number of years ago, but it is what it is: not really useful for wifi packet capture as only broadcast and multicast traffic come in.
Note also you have Microsoft Network Monitor tool that can capture wifi frames. It will save as pcap then can analyze ex post facto with Wireshark or whatever. Not as good as real time capture, but sometimes we have to live with less than ideal...
The Acrylic WiFi guys may have a driver for some devices as well on Windows.
answered 27 Dec '16, 12:40
Hi. I'm the author of Npcap. And I daily use NetGear A6200 adapter for the development of Npcap. So that adapter is the only one that I can personally assure to work. I choose it because it's not expensive and have a fast speed.
Here's a list of the compatible chipsets maintained by Aircrack-ng for reference: https://www.aircrack-ng.org/doku.php?id=compatibility_drivers. I can't guarantee that the working adapters in that list also works for Npcap. So it's just a reference.
Maybe Npcap should maintain its own compatible adapter/chipset list, but I can't afford the expense. So please let me know if there are any adapters confirmed to be working or not working.
answered 27 Dec '16, 20:30