nRF Sniffer option not available in Wireshark for Mac

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Wed, 26 Aug 2020 17:48:32 GMT

Yes. I am okay being on that version for now. Thank you for helping me out!

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Wed, 26 Aug 2020 16:56:05 GMT

Thanks for reporting back. I'm glad to hear that it works now! It's hard to say what fixed it, but I assume you're ok with using Wireshark v3.0.7 for now?

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Wed, 26 Aug 2020 15:47:45 GMT

I have attached my system configuration below. https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/Screen-Shot-2020_2D00_08_2D00_26-at-11.17.33-AM.png

I downgraded my Wireshark to v3.0.7 and I went through all the steps mentioned in the how-to and it actually worked! I see the packets being displayed on my screen. Screenshot below

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Wed, 26 Aug 2020 15:16:34 GMT

I'm having problems with replicating the issue here, unfortunately. I re-installed the nRF sniffer with Wireshark v.3.2.6 on my mac which is currently running Catalina v.10.15.5. Are you using an older or newer version of macOS?

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Mon, 24 Aug 2020 15:23:13 GMT

The issue didn't really make sense to the developer either. I will upgrade to the latest version of Wireshark and see if I can reproduce the problem locally. In the meantime, maybe you can try downgrading to Wireshark v3.0.7 which I'm currently using on my working setup.

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Fri, 21 Aug 2020 14:07:47 GMT

Okay. Sounds good. I'll wait for the response from you and in the mean time please feel to let me know if you need anything else from my side to expedite the process

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Fri, 21 Aug 2020 14:06:35 GMT

It's probably not a communication issue then. However, the last error you got is interesting, and I think it might be an important clue. As I understand it, the nrf_ble_sniffer.py must be executed by Wireshark on startup for the nRF sniffer interface to even be detected, so it seems strange to me that it's suddenly not found when you try to abort the capture afterward. I will have to contact one of the developers on Monday to get some input on this. Sorry for the inconvenience.

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Wed, 19 Aug 2020 20:11:29 GMT

I downloaded the latest SEGGER J-Link from that link above and reprogrammed my nRF51 dongle with the appropriate HEX file. I then tried to capture packets but nothing showed up on my screen. I had both the central and peripheral advertising and then connecting in the background

I then tried to disable USB mass storage as seen from the logs below:

Last login: Wed Aug 19 16:03:27 on ttys000
sarthajagetia@Sarthaks-Mac-Book ~ % /Applications/SEGGER/JLink_V682d/JLinkExe ; exit;
SEGGER J-Link Commander V6.82d (Compiled Aug 13 2020 17:15:10)
DLL version V6.82d, compiled Aug 13 2020 17:14:54

Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Mar 17 2020 14:43:00
Hardware version: V1.00
S/N: 680453365
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
VTref=3.300V


Type "connect" to establish a target connection, '?' for help
J-Link>MSDDisable
Probe configured successfully.

Then I relaunched the Wireshark application and still nothing showed up on my screen.
Are there any logs that I can grab and provide you which can help in debugging this?

I am not sure if this is related but if I press the "red" Stop Capturing Packets button it throws me file not found error.

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Mon, 17 Aug 2020 09:43:12 GMT

Yes, this is good progress. Did you try to update the SEGGER J-link SW as suggested in 'Troubleshooting'? I would also suggest you try disabling the USB mass storage class as explained here in the NCS documentation: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.3.0/zephyr/guides/tools/nordic_segger.html#disabling-the-mass-storage-device-functionality.

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Fri, 14 Aug 2020 17:47:42 GMT

I feel this is progress. I installed the pyserial for python 3 and now I am able to view the interface and an option to select the nRF sniffer but the sniffer does not populate anything on the wireshark whatsoever. I have verified that the configuration is indeed proper i.e. my nRF51 dongle is between the central (phone) and the BLE peripheral and the peripheral is advertising and I also successfully connected to it in my device. But there were no packets displayed in Wireshark. Am I doing something wrong here?

I have added a screenshot

RE: nRF Sniffer option not available in Wireshark for Mac

SarthakJ — Fri, 14 Aug 2020 17:28:37 GMT

Running the command python3 nrf_sniffer_ble.py --extcap-interfaces did not produce any errors on my laptop.
I am guessing its the issue of multiple installation of python

RE: nRF Sniffer option not available in Wireshark for Mac

Vidar Berg — Thu, 13 Aug 2020 13:41:33 GMT

Hello,

Do you have one or multiple installations of Python 3, and are you sure the PyPi packages were installed to the same Python installation invoked by Wireshark? I'm wondering if you might be running into the problem I described in my answer here: https://devzone.nordicsemi.com/f/nordic-q-a/56137/nrf-sniffer-v3-0-0-on-mac-os-does-not-work/227839#227839

[quote user=""][/quote]

python nrf_sniffer_ble.py --extcap-interfaces

I got this error:

It looks like 'python' is pointing to python 2.7.x on your system. Try python3 nrf_sniffer_ble.py --extcap-interfaces

Best regards,

Vidar