This guide explains how to access a Fritzbox connected to the Internet with a dynamic IP via a domain name.

Prerequisites

• Have a Box that allows you to configure a custom dynamic DNS provider.
• A dynamic DNS must have been created on the domain in question.

Link a Fritz!Box to a domain name

To do this:

1. Open the Fritzbox management interface by activating the Advanced mode if necessary.
2. Go to Internet then Access Authorization.
3. Click on the Dynamic DNS tab:
   
    
4. Choose the provider: “Custom”.
5. Fill in the following fields:
   • Update URL (as shown below, or by replacing ipaddr with ip6addr if you want Fritzbox to replace the "placeholder" with the IPv6 address instead of the IPv4): https://infomaniak.com/nic/update?system=dyndns&hostname=<domain>&myip=<ipaddr>
   • Domain name: the "URL" configured in the Manager when adding the Dynamic DNS
   • Username: the "identifier" defined in the Manager when adding the Dynamic DNS
   • Password: the "password" defined in the Manager when adding the Dynamic DNS
6. Click on Apply to finish.