RE: Reaching Behind Router
- Posted by "Hance, Michael" <mhance at harris.com> May 25, 2004
- 402 views
CK - If a PC has IP addressing which is not advertised to the outside , which means it is typically setting behind a firewall OR router, than there isn't much one can do unless you can get the Firewall OR Router admin to " statically NAT " a public routable IP address to your PC's private IP. There's already a NAT type of action taking place, but its a dynamic one, probably with a POOL of public addresses. Of course , this now starts to unprotect your PC, as it becomes KNOWN to the outside world. But, if you NAT an address to a particular TCP PORT on your PC, pick one that your program opens the socket on, then you'll still be fairly protected. Good luck !!! -----Original Message----- From: cklester [mailto:guest at RapidEuphoria.com] Sent: Tuesday, May 25, 2004 12:16 PM To: EUforum at topica.com Subject: Reaching Behind Router I'm trying to get two programs to contact each other, but my PC is behind a router. So, the IP address I get is either for the internal network, which can't be used by someone outside to contact me, or the IP of the router, which won't necessarily know to route to my PC. So, how do I get two PCs communicating with TCP/IP when one or both are behind routers?