Click on the "Apply" button to save your settings. If you leave the page without saving, all of your changes will be discarded.

Operating Mode in the Home Network

The FRITZ!Box can be deployed in the home network either as an internet router or as an IP client. Under "Home Network / Network / Network Settings" you can set the operating mode of the FRITZ!Box.

Internet router

When the FRITZ!Box is operated as an internet router, the following apply:

• The FRITZ!Box makes the internet connection available to the devices in the home network.
• The FRITZ!Box disposes over its own IP address range in the home network.
• The firewall of the FRITZ!Box is enabled.

The internet router operating mode is configured under "Internet / Account Information" in the FRITZ!Box user interface.

IP client

When the FRITZ!Box is operated as an IP client, the following apply:

• The FRITZ!Box is a network device in the home network of a different router. The other router can be a FRITZ!Box or a router from another manufacturer.
• The FRITZ!Box receives an IP address from the router.
• The firewall of the FRITZ!Box is disabled.

If you want to configure the FRITZ!Box as an IP client with a network cable via LAN, follow these instructions: Configuring the FRITZ!Box as an IP Client via LAN.

If you want to configure the FRITZ!Box as an IP client via Wi-Fi, follow these instructions: Configuring the FRITZ!Box as an IP Client via Wi-Fi.

Guest Access

You can configure the "LAN 4" port as a guest access. Using the guest access you can allow your guests to access the internet via your FRITZ!Box.

• Guests have access only to the internet.
• Guests have no access to your home network or the user interface of the FRITZ!Box.

Prerequisites for Guest Access

The internet access of the FRITZ!Box must be configured so that the FRITZ!Box establishes the internet connection itself. If the FRITZ!Box is configured as an IP client, so that it uses the internet connection of another device, then no guest access can be configured.

The configuration of the internet connection can be viewed in the "Internet / Account Information" menu.

Restrictions on the Guest Access

For guest access the restrictions set for the "Guest" access profile apply. The "Guest" access profile also applies for the Wi-Fi guest access.

The "Guest" access profile can be viewed and edited in the "Internet / Filters / Access Profiles" menu. Since this access profile applies for all guest connections to the FRITZ!Box, any changes to the profile affect all guest access connections.

Important:
Restrictions can be configured when setting up the Wi-Fi guest access ("Wi-Fi / Guest Access" menu). The restrictions are adopted by the "Guest" access profile and thus also apply to the "LAN 4" guest access.

Enabling the LAN Guest Access

Check the "Guest access for LAN 4 enabled" checkbox if you would like to use the "LAN 4" port for guest connections.

Terms of Use for the Guest Access

You can make login with the guest access dependent on consent to the terms of use.

Enable the "Permit login with guest access only after consent to terms of use" checkbox if you want to allow login with the guest access only after consent to the terms of use.

When they login with the guest access, guests have to consent to the terms of use.

You determine the terms of use. You must also ensure that the guests can view the terms of use.

Preparing and Connecting a Network Device

1. Configure the network device (generally the computer's network adapter) to automatically obtain IP settings.
2. Use a network cable to connect the network device to the "LAN 4" port on the FRITZ!Box.

Multiple Network Devices at the LAN Guest Access

With a hub or switch you can connect several network devices with the FRITZ!Box's LAN guest access.

Access Settings in the Home Network

Allow access for applications

This setting allows programs on the network devices installed in your home network to read and edit the settings of the FRITZ!Box. This could include the following programs, for example:

• FRITZ!Apps for smartphones
• For communication with other FRITZ! devices in the home network, for instance to read and change the FRITZ!OS version
• Configuration software from your internet service provider or internet telephony provider.

Configuring Access

1. Under "System / FRITZ!Box Users", set up a user with all desired rights.

   For a user to be able to access the FRITZ!Box from the internet, the user settings must have the "Access from the internet allowed" option enabled.

2. Enable the setting "Allow access for applications" under "Additional Settings" in the "Home Network / Network / Network Settings" menu.
3. Click on "Apply".

   Programs can now log in to the FRITZ!Box by entering a user name and password and access the FRITZ!Box.

Transmit status information over UPnP

The Universal Plug & Play (UPnP) service included in your FRITZ!Box provides status information about the FRITZ!Box to all connected computers. Programs with UPnP support on these computers can receive this information and use it to display the status of the FRITZ!Box (e.g., connection status, data transmission). UPnP service thus allows you to monitor your FRITZ!Box from a connected computer.

Time Synchronization

With this function the FRITZ!Box can synchronize the date and time with time servers in the internet.

Time Server

The FRITZ!Box synchronizes time and date with time servers entered in the "Time server" field.

The following time server is preconfigured: 2.europe.pool.ntp.org

You can enter a different time server here. It is also possible to enter multiple time servers. The individual time servers then must be separated by semicolons or commas.

Make FRITZ!Box available as a time server in the home network

Enable this option if the FRITZ!Box is supposed to be used as a time server in your home network. This setting is enabled upon delivery of the FRITZ!Box.

Settings for time synchronization at the network devices:

The information on time synchronization in the internet is generally provided to the network devices automatically.

The timer service of the given operating system is responsible for time synchronization with the time server. In Windows operating systems the timer service is switched on by default.

If network devices connected with the FRITZ!Box are supposed to synchronize their time with the FRITZ!Box, then enter the local IP address of the FRITZ!Box in the timer service of the corresponding operating system.

In Windows operating systems this information is defined in "Control Panel / (Clock, Language and Region /) Date and Time / Internet Time". The entry for the time server is the local IP address of the FRITZ!Box or simply "fritz.box" ("time.windows.com" is entered by default).

DNS Rebind Protection

To guarantee the security of the computers in the FRITZ!Box home network, the FRITZ!Box suppresses DNS responses that refer to IP addresses in the home network. This is a security function of the FRITZ!Box to protect against so-called "DNS rebinding attacks".

If you would like to enable DNS resolution for domain names that refer to private IP addresses in the FRITZ!Box home network, you can specify exceptions. In this case DNS queries for domain names contained in the list of exceptions will receive a response even if the DNS response refers to an IP address in the FRITZ!Box home network.

If exceptions for DNS rebind protection are entered in the FRITZ!Box, the internet connection should be monitored with security software (firewall, virus scanner) on every computer in the FRITZ!Box home network.

Automatic Entries for myfritz.net Domain Names

If the FRITZ!Box is the Mesh Master, then an entry is made in the DNS Rebind Protection list automatically in the following case:

• In the home network there is a FRITZ!Box that is configured as an IP client and as a Mesh Repeater.
• The FRITZ!Box working as a Mesh Repeater is registered with its own MyFRITZ! domain from the home network of the FRITZ!Box that's the Mesh Master. The MyFRITZ! domain of the Mesh Repeater is different from that of the Mesh Master.

Since the DNS resolution of the MyFRITZ! domain name of the Mesh Repeater always refers to an IP address in the home network of the Mesh Master, for MyFRITZ! registration, the MyFRITZ! domain name of the Mesh Repeater is entered automatically in the list for DNS rebind protection.

IP Addresses

IPv4 Configuration

With the "IPv4 Configuration" button you open the "IPv4 Addresses" page. The IPv4 settings for the FRITZ!Box can be changed on this page.

IPv6 Configuration

With the "IPv6 Configuration" button you open the "IPv6 Addresses" page. There you can specify how the FRITZ!Box assigns Unique Local Addresses (ULAs) to local network devices if no IPv6 connection is active.