how to forward a port to local hosts.

[mashhur]

hello everyone!

im experiencing a problem with port forwarding.

I have 2 routers hold static global IPs (given by ISP). For each routers, there are local hosts behind.
Let's say, routers' ips are R1_IPAddr and R2_IPAddr where local machines R1_IPAddr_localIP1, R2_IPAddr_localIP1 etc...

I wanna send a message from R1_IPAddr_localIP1 to R2_IPAddr_localIP1 on 5000 port.

Here is what I did:
1) went to the router setting and set the port forwarding for R1_IPAddr_localIP1 on 5000 port number.
2) created a socket binds 5000 port with R2_IPAddr_localIP1 and tries to connect to R1_IPAddr and run it on R2_IPAddr_localIP1 host.

I was supposed to connect to R1_IPAddr_localIP1 but nothing happened.
NOTE: forwarding global port 4000 where local is 5000 and also im certainly using TCP/IP connection and forward TCP port.

Please share if somebody has any ideas!

Thanks in advance.

 

[gajen.bala]

port forwarding is done to allow incoming connections to a particular local host ip, you have done the port forwarding on the wrong router.

if you want to make a connection from R1_IPAddr_localIP1 to R2_IPAddr_localIP1 on port 5000 . then R2 should be configured for port forwarding (to R2_IPAddr_localIP1:5000)

in order to check whether the port is forwarded properly on R2 to R2_IPAddr_localIP1 , you can try to access the following website from a computer connected to R2

**broken link removed**

enter 5000 and click check

you should get port open message, provided the port is open on R2_IPAddr_localIP1, by creating a socket binds.