title: Host unreachable admin prohibited
body: <p>Hi I wrote a simple chat server, which will forward the data between two clients. I run the server in a PUBLIC IP (OS Fedora), but when I am trying to connect with the listening port I am getting error "Host unreachable admin prohibited" (I used wireshark to capture the error). </p>
  
  <p>Can anybody say, what's going on here. A public IP should not be unreachable.</p>
  
  <p>Thanks in advance.</p>