FRITZ!Box 3370 Service - Knowledge Base

FRITZ!Box 3370 Service

Setting up port sharing in the FRITZ!Box

By default, the FRITZ!Box's firewall protects all of the devices in the FRITZ!Box home network from incoming connections and unwanted data from the Internet.

If you configure port sharing, you can use online games, file-sharing software, and other Internet applications that accept incoming connections from the Internet, or allow users in the Internet to access web servers and remote maintenance servers as well as other server services in your home network.

The FRITZ!Box offers different options for sharing ports that can either be used separately or together.

1 Setting up automatic port sharing

  • Set up the FRITZ!Box for automatic port sharing if
    • you want to allow the application to set up all of the required port sharings in the FRITZ!Box on its own.
    • port sharing is not required for a server service.
    • the Internet application supports the UPnP standard (Universal Plug and Play).

      UPnP is supported by game consoles such as PlayStation or Xbox, for example. The manufacturer can provide you with information on the respective application.

    • the application requires you to share many ports, or different ports are used each time the application is used.

2 Setting up static port sharing

  • Set up static port sharing in the FRITZ!Box if
    • you want to allow access to a server service in the FRITZ!Box home network over the Internet, for example a remote maintenance server or VPN server.
    • the application does not support the UPnP standard.