SUPPORT

XBOX CONNECTIVITY FAQ http://www.xbox.com/en-GB/support/

PORT FORWARD .COM http://www.portforward.com/

XB CONNECT http://www.xbconnect.com/xbchelp/

ROUTER HELP http://www.xbconnect.com/xbchelp/router/

Port Forwarding

Software ports are numbered connections that a computer uses to sort types of network traffic. A port may support incoming traffic, outgoing traffic, or both. A few services, such as FTP (on port 21), and HTTP (on port 80), are assigned by default to open ports where operating systems can easily find them easily. When a port is opened a service is assigned to it, for example, an online game. For security, by default all ports to the Internet, and most LAN ports are closed so that traffic cannot flow through them.