I'm having an issue with a tcp handshake that I can't find the answer to anywhere else.
I have a program running on my local device that posts data to port 50000. In a terminal on the same machine, I use netcat to connect to the port. However, while using tcpdump and wireshark, I can see that the SYN packets are sent but the SYN/ACK packets are never sent in response. My iptables have no rules for connections, and the default policy for all chains is to accept the connection. This happens every time I try to connect, and so far I can't see why the server is not responding to the SYN packets.