LevelOne NVR-0432, User Manual

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2. Enter the IP address, subnet mask, default gateway address and
DNS server address for the recorder
3. Enable “DHCP Server” under “DHCP Server” if you wish to use the
recorder as a DHCP server, or leave it disabled if there is already a
DHCP server in the network
4. Click Apply for the settings to take effect
* The recorder can detect the presence of a DHCP server upon startup.
It sets itself to use static IP address if there is no DHCP server
currently presented in the network. Its DHCP server function is also
turned on at the same time to assign IP addresses to cameras that are
later connected to the network or you can manually turn off the DHCP
server function if you wish to use a separate DHCP server
DDNS Service
DDNS, which stands for “Dynamic DNS”, is a method, protocol, or
network service that provides the capability for a networked device,
such as a router or computer system (in this case, the NVR) using the
Internet Protocol Suite, to notify a domain name server to change, in
real time, the active DNS configuration of its configured hostnames,
addresses or other information stored in DNS.
A popular application of dynamic DNS is to provide a residential user’s
Internet gateway that has a variable, often changing, IP address with
a well known hostname resolvable through standard DNS queries.
This is useful if the NVR is placed on the Internet with a dynamic
public IP, which once the DDNS is properly setup, users can access the
NVR remotely with the DDNS domain name without worrying if the IP
hs changed or not.