I have written a C++ tool for my linux machine which receives UDP (OSC) packets and sends them back immediately (thats the only thing it does). But it seems that there is some amount of dropped packets. When I send 100 packets to my linux (from another machine), mostly only 64 packets are returned. I have looked at the incoming packets with tcpdump. It tells me the following:
64 packets captured
64 packets received by filter
0 packets dropped by kernel
So where are they?