FRITZ!Box 4020
52
Port Forwarding: Making Computers Accessible from the Internet
Configuring Port Forwarding in the FRITZ!Box
•
IPv4:
–
Port forwarding is configured in the “Internet / Per-
mit Access” menu, on the “Port Forwarding” page.
•
IPv6:
–
Port forwarding is configured in the “Internet / Permit
Access” menu, on the “IPv6” page.
Determining the IPv4 Address for Accessing the FRITZ!Box
If you have enabled ports for forwarding in the FRITZ!Box, oth-
er Internet users can access your computers at the IP address
assigned to your FRITZ!Box by the Internet service provider.
This is a public IPv4 address.
Here is how to determine the public IPv4 address of the
FRITZ!Box:
1.
Open any Internet page in order to establish an Internet
connection.
2.
Open the FRITZ!Box user interface.
3.
The FRITZ!Box’s public IPv4 address is displayed on the
“Overview” page in the “Connections” area.
Exposed host
(Open firewall
completely)
IPv4:
Within IPv4 networks you can open the firewall
completely for one computer. This computer is
then no longer protected by the FRITZ!Box fire-
wall. If individual ports are already open for other
computers, then data packets for these ports are
not forwarded to the exposed host, but to the
other computer instead.
IPv6:
Within IPv6 networks you can open the firewall
completely for each computer. These computers
are then no longer protected by the FRITZ!Box
firewall.
