Socket problem in java

**Miles Runner** · 24-02-2010

Hello,
I have a problem with my java program simple yet all I read every tutorial on the socket and yet nothing I can not solve my problem. My program has yet to connect a fixed ip as the website. I come carefree connect to google youtube etc. The concern comes when I try to connect to a computer located to router and provided with a dynamic ip address. I think I am have a socket problem in my code.
Here is my code:

Code:

public class securiter {
 
		
	Public static void hand(String[] args) {
	
                         Socket msoc = null ;
 
		try {
			msoc = new Socket("192.18.132.XX",8887) ;
                                      msoc.close() ;
		} catch (Exception e) {
			System.out.print("Unable to connect to the IP address") ;
		}
		
	}
 
}

**Windowed** · 24-02-2010

Hello,
You have posted the client code, if you need the server code, then here it is

Code:

Public class securiter {
	
	Public static void hand(String[] args) {
		Socket msoc = null ;
ServerSocket msersoc = null ;
		try {
			msersoc = new ServerSocket(8887) ;
msoc = msersoc.accept() ;
msersoc.close() ;
msoc.close() ;
		} catch (Exception e) {
			System.out.print("Can not open up the port 8887") ;
		}
		
	}
 
}

**Remedy** · 24-02-2010

Hello,
Even I am having a similar kind of a problem. When you say we must open port 8887 you mention the port on the router or the port on the pc? Sorry if my question is stupid. Please I know that I was able to connect to its router using port 80. But if I send it a message it does not respond while for both the pc there is a program to attend the connection on port 80. Any help on this is highly appreciated. Thanks in advance.

**NetworkeR** · 24-02-2010

Hello,
Must configure your friend's router to forward port 8887 on the computer running the server. Of course, it also requires the server is ready to receive a motion and must be launched and the firewall configured to accept incoming connections on that port. If you have any more queries regarding this topic then do post and we will help you solve your problem.

**Miles Runner** · 24-02-2010

Hello,
One more question is not there a door provided for that referral directly on the local pc without me is whatever has to be set.
What think you of this command in java (I can not make a walk):

Code:

msoc soc = new Socket (String host, int port, InetAdress adresseLocal, localPort int);

If someone could give me more than it would permission. For I will absolutely do my program without configuring the router.

**HardWeaR** · 24-02-2010

Hello,
this is not possible without touching the router's configuration, regardless of the program. The easiest way is to configure the router to return any default on the pc (DMZ). Nevertheless, we must configure the router and then offer it a usb modem. Hope you are understanding he problem and I would recommend you to read some basic of networking in java , then start the code part.