IPSec allows you to connect several FRITZ!Box networks and FRITZ!Repeater networks at different locations over a secure, encrypted VPN connection (LAN-LAN linkup).

To connect more than two FRITZ! networks with each other via IPSec, in each FRITZ! network you must set up a VPN connection to all other FRITZ! networks. You can set up individual VPN connections as described in the guide Setting up a VPN (IPSec) between two FRITZ! networks.

Example:
To connect the three FRITZ! networks "FRITZ!Box Headquarters", "FRITZ!Box Branch", and "FRITZ!Repeater" with each other via IPSec, set up the following VPN connections:
- In "FRITZ!Box Headquarters", configure a connection to "FRITZ!Box Branch".
- In "FRITZ!Box Headquarters", configure a connection to "FRITZ!Repeater".
- In "FRITZ!Box Branch", configure a connection to "FRITZ!Repeater".