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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.

By setting up port sharing, you can use online games, file-sharing software, and other internet applications that accept connections from the internet, or allow users in the internet to access web servers, remote maintenance servers, and other server services in your home network.

The FRITZ!Box offers different ways to share ports that can be used separately or together.

Setting up automatic port sharing

  1. Set up the FRITZ!Box for automatic port sharing if
    • the application should be allowed 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 application supports the UPnP standard (Universal Plug and Play).

      UPnP is also supported by many game consoles (for example PlayStation, Wii U, Xbox). Information on on the respective application or device can be obtained from the manufacturer.

    • the application requires very many shared ports, or different ports are used each time the application is used.

Setting up static port sharing

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