Fritz!Box 4040 - Enabling Dynamic DNS

Enabling Dynamic DNS
Overview
Every time the internet connection is interrupted, the internet service
provider reassigns the IP address. The IP address may change in the
process. Dynamic DNS is an internet service that makes it possible for
the FRITZ!Box to remain accessible from the internet at all times un-
der a fixed name, the domain name, even when the public IP address
changes.
You must register with a dynamic DNS provider to use this service.
Every time the IP address changes, the FRITZ!Box transmits the new IP
address to the dynamic DNS provider in the form of an update request.
Then the current IP address is assigned to the domain name by the dy-
namic DNS provider.
Dynamic DNS and MyFRITZ!
MyFRITZ! can be used as an alternative to dynamic DNS. The two ser-
vices can also be used in parallel. For more information on MyFRITZ!,
see page174.
Requirements
• You are registered with a dynamic DNS provider and have set up a
domain name.
Instructions: Enabling Dynamic DNS
1. Open the user interface; see page46.
2. Select “Internet / Permit Access / DynDNS”.
3. For instructions, open the online help .
FRITZ!Box4040 84
User Interface: Internet Menu
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