I would also like to know the scenarios where in my nic will drop the frames apart from erroneous crc. Is there a way to ensure that the promiscuous mode of the Wireshark is active on Windows 7 and it is not overridden (overridden by administrative rights)? I have promiscuous mode enabled for my interface. So i think we can drop the possibility of my nic dropping packets with wrong crc (unless it drops for some other reason). I do believe that the crc for the unicast and multicast frames are correct because i had the same test setup connected to an ixia and have seen that ixia is collecting and reporting those frames. Please let me know whether there is any setting particular for unicast or multicast frames so that they are captured. When you run an nmap scan from your device, its network card will run in promiscuous mode so it can utilize nmap scripts (ie sniffer-detect) in order to detect ports and services running. However, all my broadcast frames are captured properly by it. Stack Exchange Network Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I see that my unicast (and multicast) frames are not captured by the Wireshark. And when running 'ntopng -v -G /var/run/ntopng.pid -i 1 -s' I get: HTTPserver.cpp:350 H. Windows/Linux/Mac Wireshark Dongle Use ESP32 promiscuous mode to capture. As far as I know if NIC is in promisc mode it should send ICMP Reply. Cannot stop ntopng Issue 989 ntop/ntopng GitHub Notifications Fork Closed nksiddhant on 8 comments nksiddhant commented on Verify if the problem is related to the mysql connection ( -F flag) Disable alerts ( -H flag). You can also launch Wireshark, open the packet capture, and then specify the. This is one of the methods of detection sniffing in local network. I have a test set up in which my test board is connected to a machine on which Wireshark is installed. I've checked options 'Capture packets in promiscuous mode' on laptop and then I send from PC modified ICMP Request (to correct IP but incorrect MAC address).
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