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Knowledge document #1089
FRITZ!Box 6840 LTE
This support document is available for the following products:
- FRITZ!Box 7690
- FRITZ!Box 7682
- 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 7390
- FRITZ!Box 7360
- FRITZ!Box 6890 LTE
- FRITZ!Box 6850 5G
- FRITZ!Box 6850 LTE
Identifying the address range of the IPv4 address for the internet connection
For computers, smartphones, and other network devices to communicate with each other, each device must be addressable via a unique IP address. When the FRITZ!Box connects to the internet, your LTE provider assigns it an IP address for communication on the internet.
When Internet Protocol version 4 (IPv4) is used, each IP address can be associated with one of the following address ranges:
- Private address ranges:
- IP addresses from private address ranges are intended exclusively for communication in private networks (for example the FRITZ!Box home network) and can therefore be used in an unlimited number of networks at the same time. Since they are never forwarded (routed) over the internet, devices with IP addresses from private IP address ranges cannot be accessed from the internet.
Note:For more information on "private addresses", see Wikipedia.
- IP addresses from private address ranges are intended exclusively for communication in private networks (for example the FRITZ!Box home network) and can therefore be used in an unlimited number of networks at the same time. Since they are never forwarded (routed) over the internet, devices with IP addresses from private IP address ranges cannot be accessed from the internet.
- Public address ranges:
- IP addresses from public address ranges are only used by a single device at a time worldwide. Since they make it possible to unequivocally identify network devices, they are forwarded on the internet (routed) and therefore allow the network devices to be accessed from the internet.
Identifying the address range of an IP address
- Open the FRITZ!Box user interface.
- Check which IP address is displayed in the section "Connections" on the "Overview" page.
- The FRITZ!Box is using an IP address from the private address range if an IP address from one of the following ranges is displayed:
- 10.0.0.0 - 10.255.255.255
- 100.64.0.0 - 100.127.255.255 (Carrier-grade NAT)
- 172.16.0.0 - 172.31.255.255
- 192.0.0.0 - 192.0.0.7 (dual-stack lite)
- 192.168.0.0 - 192.168.255.255
- The FRITZ!Box is using an IP address from the public address range if an IP address from a different range is displayed.