title: Port forwarding (P2P connection)
body: <p>Im experiencing a strange situation which i was supposed to handle.</p>
  
  <p>The situation is: 2 routers (with static IPs by ISP) and 2 host computers behind each router. Let's say IP addresses are R1_IPAddr(router 1), R1_IPAddr_LocalH1(host 1 behind router 1) are 1st group and R2_IPAddr(router 2), R2_IPAddr_LocalH2(host 2 behind router 2) are belong to 2nd group.</p>
  
  <p>So, my aim is: To connect R1_IPAddr_LocalH1 with R2_IPAddr_LocalH2.
  Here what I did: My server code (C#) on R2_IPAddr_LocalH2 and R2_IPAddr router forwards port 5000 to R2_IPAddr_LocalH2 (configured but may require other settings). Server code binds R2_IPAddr_LocalH2 on 5000 port number and waits connection where R1_IPAddr_LocalH1 machine tries to connect to R2_IPAddr router on port 5000.</p>
  
  <p>NOTE: router hasn't any firewall options, means the cheapest one :) and tested my code on local LAN, working fine!</p>
  
  <p>If somebody has any ideas to share pls?
  Thanks in advance.</p>