Always use a native IPv6 connection: Connection Settings

For a native IPv6 connection the FRITZ!Box needs a global IPv6 address. The global IP address is required for internet communication. There are different ways of obtaining the global address.

If you have contracted with your internet service provider for static IPv6 data, the requested data were sent to you by the internet service provider. In this case, select the setting "Use static settings" and enter the static IPv6 addresses.

Automatically negotiate a global address

With this setting the FRITZ!Box attempts to receive the global IPv6 address in the following fixed sequence:

  • The FRITZ!Box attempts to determine the global IPv6 address from the internet service provider's router advertisement.
  • The FRITZ!Box attempts to acquire the global IPv6 address from the internet service provider's DHCPv6 server.
  • If the first two attempts were not successful, then the FRITZ!Box derives the global IPv6 address from the first /64 subnet of the prefix.

Obtain global address only via DHCPv6

With this setting the FRITZ!Box queries the global IP address from the internet service provider's DHCPv6 server. Select this option if your FRITZ!Box uses an internet connection via the TV cable line.

Derive global address using the assigned prefix

With this setting the FRITZ!Box first attempts to determine the global IPv6 address from the router advertisement. If this does not work, then the FRITZ!Box derives the address from the first /64 subnet of the prefix.

Use static settings

If you contracted with your internet service provider for static IPv6 data, the prefix for your IPv6 network was sent to you by the internet service provider.

  • LAN prefix

    Enter the prefix for your IPv6 network in this field. You received this prefix from your internet service provider.

  • WAN prefix

    The WAN prefix and WAN interface ID combine to make up the IPv6 address for the WAN interface of the FRITZ!Box. This globally unique IPv6 address is needed by the FRITZ!Box for internet communication. The WAN prefix is the part of the IPv6 address that designates the network.

    • Use first /64 prefix from the LAN prefix

      Determines the first network from the LAN prefix with a prefix 64 bits long.

    • Manual settings

      Enter an IPv6 network in this field. The IPv6 network must be derived from the LAN prefix and must have a prefix 64 bits long.

  • WAN interface ID

    Enter here the interface identifier for the WAN interface of the FRITZ!Box. The WAN prefix and WAN interface ID combine to make up the FRITZ!Box's globally unique IPv6 address for internet communication. Since the WAN prefix is 64 bits long, the WAN interface ID is also 64 bits long.

    • Create interface ID automatically

      The interface ID is generated automatically.

    • Manual settings

      Enter the interface ID in the field. The interface ID is 64 bits long.

  • First DNS server:

    You received the IPv6 address for the first DNS server from your internet service provider. Enter this address here.

  • Second DNS server:

    You received the IPv6 address for the second DNS server from your internet service provider. Enter this address here.

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