![websocket - How can I connect client tcp ports behind router or firewall without NAT - Stack Overflow websocket - How can I connect client tcp ports behind router or firewall without NAT - Stack Overflow](https://i.stack.imgur.com/Hvw9q.png)
websocket - How can I connect client tcp ports behind router or firewall without NAT - Stack Overflow
![sockets - TCP's Welcome port vs connection port and the purpose of three way handshake - Stack Overflow sockets - TCP's Welcome port vs connection port and the purpose of three way handshake - Stack Overflow](https://i.stack.imgur.com/DwMk0.png)
sockets - TCP's Welcome port vs connection port and the purpose of three way handshake - Stack Overflow
Specifying client port (--cport) fails in bi-directional mode (--bidir) · Issue #1249 · esnet/iperf · GitHub
![Port configuration in client/server machines The following process has... | Download Scientific Diagram Port configuration in client/server machines The following process has... | Download Scientific Diagram](https://www.researchgate.net/publication/317690586/figure/fig3/AS:507355907321856@1497974483019/Port-configuration-in-client-server-machines-The-following-process-has-some.png)