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Can’t capture 5ghz traffic on OS X

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1

Hey folks,

Recently I've been trying to find an issue with my WiFi that runs on 5ghz using a Mac running Wireshark 2.0.3. Whenever I do a capture with I am only getting 2.4ghz traffic. If I run a capture manually in terminal using airport en0 sniff (channel) I can get the 5ghz traffic I want. Is there any way to specify what channel Wireshark captures on or allow it to capture 5ghz traffic along with 2.4ghz traffic?

asked 29 Apr '16, 07:57

caffeinatedsoap's gravatar image

caffeinatedsoap
11124
accept rate: 0%


One Answer:

2

You have to set the channel manually after disconnecting from an active network. Easiest way I found was the following tool:

https://www.adriangranados.com/apps/airtool

Alternatively, if you find these executables on the system,

(to disassociate)

sudo airport -z

(set channel 36, for instance, on 5GHz)

sudo airport --channel=36

I start Wireshark with monitor mode enabled on the wifi adapter to collect packets.

answered 29 Apr '16, 09:13

Bob%20Jones's gravatar image

Bob Jones
1.0k2515
accept rate: 21%

Thanks Bob, that worked great!

(29 Apr '16, 09:30) caffeinatedsoap