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Knowledge document #106
FRITZ!Box 7390
This support document is available for the following products:
- FRITZ!Box 7690
- FRITZ!Box 7590 AX
- FRITZ!Box 7590
- FRITZ!Box 7583 VDSL
- FRITZ!Box 7583
- FRITZ!Box 7582
- FRITZ!Box 7581
- FRITZ!Box 7560
- FRITZ!Box 7530 AX
- FRITZ!Box 7530
- FRITZ!Box 7520
- FRITZ!Box 7510
- FRITZ!Box 7490
- FRITZ!Box 7430
- FRITZ!Box 7360
- FRITZ!Box 6890 LTE
- FRITZ!Box 6690 Cable
Setting up the FRITZ!Box for use with another router
The FRITZ!Box can use the existing internet connection of another router. This allows you to 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 telephone system and 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.
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.
- computers, smartphones, and other devices connected to the FRITZ!Box still obtain their IP settings from the existing router.
- all devices have unrestricted access to the internet and all other 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.
- computers, smartphones, and other devices connected to the FRITZ!Box no longer obtain their IP settings from the other router. Instead, they obtain them from the FRITZ!Box.
- it is not possible to access devices connected to the FRITZ!Box from the internet or the other router's network.
- the parental controls and guest access functions are available.