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From: Fulcrum Mike <fulcrummike@gmail.com>
To: linux-wireless@vger.kernel.org
Subject: Wireshark: Alfa AWUS036H not capturing TCP
Date: Tue, 12 Jan 2016 19:56:28 +0800	[thread overview]
Message-ID: <5694E9EC.3080103@gmail.com> (raw)

Hi everybody

I am using Alfa AWUS036H usb Wifi device with Arch Linux (kernel 4.3.3) 
to capture wifi traffic. I have setup an open access point which should 
be easy to sniff. I tried for many days but couldn't catch any tcp data. 
There were numerous protocols like 802.11 broadcasts, NBNS, UDP, ICMPv6, 
ARP, SSDP, LLMNR etc but no tcp. Then I booted a live kali cd and 
repeated the same procedure exactly. This time everything worked fine 
and there was plentiful tcp traffic from multiple APs nearby.

My procedure: I put the device in monitor mode using 'airmon-ng start 
wlan0'. Then start capturing data using 'airodump-ng wlan0mon' so I 
start seeing info about nearby access points. At this stage I start data 
capture on Wireshark. Here onwards, Kali gives loads of tcp data but 
Arch doesn't capture a single tcp packet.

My question is: While both Arch and Kali systems are using the same 
driver (rt2800usb version 2.3.0), why can't I capture tcp on Arch?

Regards


                 reply	other threads:[~2016-01-12 11:56 UTC|newest]

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