If a hosting server is needed, use port forwarding instead. Protocol (see note 1)Īll protocols mentioned above are for clients running behind the NAPT. The following applications, when run behind NAPT, do not require any router user configuration. Port Triggering for Playing Games Behind NAPT GameĪpplications that Do Not Require Configuration Behind NAPT ** Net2Phone and SSH have not been tested yet Passing Applications Through NAPT Port Forwarding When Hosting Services Behind NAPT Protocol The Virtual Servers setup page allows you to add, remove, and save virtual server settings. (IP forwarding is another term for this.) In this method, a connection with the outside is redirected to a host (the virtual server) running the services on the private network. However, if you need to use public services such as Web, FTP, or e-mail servers from your private network, you can set up a virtual server to permit secured access. Under NAPT, all internal network computers are inaccessible from the outside. Nobody from the outside can latch onto your IP address and use it to connect to a port on your computer. Essentially, this means that a computer on an external network cannot connect to your computer unless your computer has initiated the contact. NAPT only allows connections that originate inside the internal network. Implementing dynamic NAPT automatically creates a firewall between your internal network and the Internet. This means that only a single unique IP address represents an entire group of devices to the outside world. Network Address and Port Translation (NAPT) allows a single device, such as a router, to be an agent between the Internet (or "public network") and a local (or "private") network. Network Address and Port Translation (NAPT) Please refer to your browser’s documentation for instructions on how to This browser either doesn’t support scripting or has scripting disabled. This USRobotics User Guide uses scripting to display its information correctly.
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