Failed to configure tins sniffer however ethernet device is valid

[CFZeon]

I'm trying to replay a pcap to capture with ros2 bag. However, I get this error which is weird considering how ifconfig shows that it is working fine

[SteveMacenski]

CC @MattSYoung

[MattSYoung]

Hi there @CFZeon, I'm not sure what your exact problem is, as I can't reproduce this issue on my PC without more information. So let's try to get some more info out of the Tins API - can you please go to Line 189 of src/sensor.cpp and change that line

FROM:

_tins_sniffer_pointer = std::make_unique<Tins::Sniffer>(eth_device, _sniffer_config);

TO:

  try { 
    _tins_sniffer_pointer = std::make_unique<Tins::Sniffer>(eth_device, _sniffer_config);
  } catch (const std::exception & e) {
    std::cout << "Tins error is: " << e.what() << std::endl;
  }

Re-compile and re-run etc, then post the result back here. You should see something like [ouster_tins_driver-1] Tins error is: SIOCGIFHWADDR: No such device

[CFZeon]

Hi @MattSYoung the tins error that showed was

[MattSYoung]

Sounds like a permissions error. Are you using a virtual environment such as Docker or WSL by any chance?

Try re-running the launch file with sudo, that might give the Ouster driver the permissions it needs to access the ethernet device.

[CFZeon]

That did the trick! Thank you so much. It did not occur to me that it was a perms issue.

[MattSYoung]

No worries, glad it solved your problem!