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9.5.4
DDNS
If you are not planning on connecting to the network camera over a remote connection, but
only in your local network, you can skip this section.
Dynamic DNS is a network service that provides the capability for a networked device, such
as a router or computer system, to notify a domain name server to change, in real time
(ad-hoc) the active DNS configuration of its configured host names, addresses or other
information stored in DNS.
In simpler terms: Users of private Internet services are often faced with a problem: The ISP
typically changes the IP address assigned to the user based on a time interval. This may be
as often as once every 24 hours or as seldom as once every 30 days. For the average user this
is not a problem. However, if you want to be able to connect to the local camera (e.g., in your
house) from a remote location (e.g., the office), you need to know under which Internet
address the camera can be reached. However, you don’t know what the current Internet IP
address is. So you are beginning to see the problem.
DDNS solves this problem by allowing you to create a domain name for your home network,
which you can always use to access the camera. To use the DDNS function, you will need to
do the following two things.
First, create a DDNS hostname with a DDNS service provider
Secondly, set up a DDNS client in the home network that contacts the DDNS service provider
and updates the IP information.
If the router in your home network is equipped with a DDNS client, we recommend using the
router instead of the camera. Most SOHO routers are equipped with a DDNS client and since
the router is in direct control of handling the Internet connection, it’s the device best suited
