Jun 14th, 2006, 3:40 AM
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#8
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Professional Programmer
Join Date: May 2006
Location: UK - London
Posts: 330
Rep Power: 3 
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this is very simple program to accomplish in VB....don't worry if the program detects you IP as your local IP assign to you by your router hence the 192.168.1.100...because whatever you send out of this address goes to the router and the router would changes this address to your WAn address, and would also change your port to an external port.....with that out the way....now any router that gets the machine that you have just sended would rop that packet because it is unsolicited (routers don't route unsolicited packets). so to get that router to accept your packet you have to do what is called UDP/TCP Hole Punching......this is very simple and straight forward........i hope this help if you need help to do this then please post so then i can write a simple tutorial on it.
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