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The fragmentation means that a total of 6 frames have to be sent:Īnd on my Windows 7 machine, that's what Wireshark shows.

Unfortunately, the exact same executable running on Windows 10 sends duplicate frames.Īn example: say I send 3x 1473-byte UDP packets. And it works perfectly from my Windows 7 machine. Has to fragment the packet as it goes out: fair enough. When I send 1473 bytes or more in a UDP packet, the IP stack As long as my UDP packets are less than or equal to the MTU (1472 bytes, accounting for UDP overhead), everything works. I'm communicating to an embedded target from my Windows machines using UDP. TCP : 0 UDP : 3 ICMP : 0 IGMP : 0 Others : 0 Total : 3 Outputting to a. pcap file is again just a case of modifying the code slightly more :-)

TCP : 0 UDP : 2 ICMP : 0 IGMP : 0 Others : 0 Total : 2 TCP : 0 UDP : 1 ICMP : 0 IGMP : 0 Others : 0 Total : 1 Initialising Winsock.Initialisedīinding socket to local system and port 0. |-IP Header Length : 5 DWORDS or 20 Bytes Change the log file and gethostbyname to newer versions and go from there. Start with the MemoryStatus example (which is targeted against the underlying NT kernel, not UWP) and replace the Main with code from the above example.

Wireshark has no binary for IoT and I'm not sure it would port that well.Ĭan be modified by changing just some of the code.