|Why are you bothering to do this crosscompiling? I don't understand sorry. If it were me and I wanted to check packets flow I'd just run tcpdump on that computer instead of going to all the trouble you're going through. Try it and see if things don't improve.|
Using the "tee" command you could split the output and send one stream to the STDOUT and the other to a file if you wanted.
If you're testing this in a LAN situation, there's no reason for packet loss and I suspect yours is a problem with the core compile you've tried.