Establishment Fritzbox

In the menu item
Internet -> Releases -> Dynamic DNS
activate the option:

 
[x] Use dynamic DNS

Dynamic DNS-provider: User-defined

Update-URL:

Register identically, please! Do not change anything!

members.feste-ip.net/nic/update?system=dyndns&hostname=<domain>&myip=<ipaddr>

Name of the domain: YOUR-NAME.feste-ip.net
Username: HOST-ID (Is shown to you when name is created.)
Password: (Is shown to you when name is created.)

 

 

ATTENTION:
If you use a DS-Lite oder IPv6 only approach to the Internet, please use the following update-URL. Otherwise Fritzbox will not update:

v6.members.feste-ip.net/nic/update?system=dyndns&hostname=<domain>&myip=<ip6addr>

 

 

 

 

Instruction via video for Fritzbox: