FRITZ!Box 7390 – Service - Knowledge Base

FRITZ!Box 7390 – Service

Setting up the FRITZ!Box for use with another router

The FRITZ!Box can share the Internet connection of another router. You can then do the following with the FRITZ!Box:

  • use it with an Internet connection where the Internet service provider requires the use of a special router they provide that contains preconfigured account information that cannot be changed (Integrated Access Device, IAD).
  • easily integrate it into an existing network infrastructure.
  • use it as a PBX and then use all of the telephones connected to the FRITZ!Box to conduct calls over the router.

The FRITZ!Box can be set up as an IP client or a cascaded router. Which operating mode is best depends on your requirements.

Important:If the other router is a FRITZ!Box, set up both of the FRITZ!Boxes for parallel use.

1 Setting up the FRITZ!Box as an IP client (recommended)

  • Set up the FRITZ!Box as an IP client if you want to easily integrate the FRITZ!Box into an existing network. When used as an IP client,
    • the firewall of the FRITZ!Box is disabled.
    • network devices (for example computers, smartphones) connected to the FRITZ!Box still obtain their IP settings from the other router.
    • all network devices have unrestricted access to the Internet and all other network devices, regardless of whether they are connected to the FRITZ!Box or the other router.
    • the functions parental controls and guest access are not available.

2 Setting up the FRITZ!Box as a cascaded router

  • Set up the FRITZ!Box as a cascaded router if the FRITZ!Box should make its own network available that is separate from the other router. When used as a cascaded router,
    • the firewall of the FRITZ!Box is enabled.
    • network devices (for example computers, smartphones) connected to the FRITZ!Box no longer obtain their IP settings from the other router; instead, they obtain them from FRITZ!Box.
    • it is not possible to access devices connected to the FRITZ!Box from the Internet or the other router's network.
    • the functions parental controls and guest access are available.