Daniel-Constantin Mierla writes:
Now, for TCP, I expect that the connection is not
established if the
lower layers forbid it, so there should be no real data traffic on it.
If you list tcp connections with rpc command, do you see the one you
noticed traffic for using ngrep but Kamailio does not get it?
OK, thanks, will try rpc next time when the problem appears. Also
better to use tshark to see also tcp layer acknowledgments.
-- Juha