bitwisexor: Well, I'm not sure how the NAT (network Address Translation) works, But I do know that two computers behind a router will appear to the internet as having the same IP address. That is, they will both appear to have to IP address of the router. For example: If you have a Linksys wireless router, the computers behind it will have private IP address (192.68.x.x). If you connect to a server on the internet, the server will see them as the public IP assigned to the router (usually assigned by your ISP).