I have checked this UDP packets not displayed in Wireshark and this UDP Packet not captured by Wireshark, but is captured by UDP application , but couldnt solve my issue.
I am using Wireshark to observe traffic on an adapter I have connected to some network device- no other traffic than the one I issue is there.
Then I am using Packet Sender application to send a UDP packet to an IP address I know is on the other side of the adapter (i.e. I am 10.10.10.34, the other device is 10.10.10.1).
I can correctly ping the other device and ICMP packets are visible in Wireshark. I can sent TCP or SSL packets and see them in Wireshark. Whenever I send UDP packet, it is not seen in Wireshark- I cannot figure out why. All my settings are default ones.
The other thing I suspect that the UDP packet is not sent by the Packet Sender application, but I am not sure how to validate that.