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C h a p t e r 7
An IP address assigned by DHCP is
called a
dynamic IP address
®
because it may change automatically as
devices are added to or removed from the
network. An IP address you specify is
considered a
static IP address
will not change until you specify a new
one.
90
Basic TCP/IP Concepts
This section describes a few basic TCP/IP concepts. If you are familiar with home
networking, you can skip to "Begin TCP/IP Settings" on page 91.
IP Address. TCP/IP settings are used to manage IP addresses on a network. An IP address
is a number that identifies a single device on a network (in much the same way that a
home address identifies a single home in the US). IP addresses use four numbers separated
by periods. Each number can be from 0 to 255. Some example IP addresses are:
192.168.0.1 and 10.8.3.25
DHCP and Static IP Addresses. DHCP automatically assigns IP addresses to devices on a
network. Most home networks include a router or home gateway that has DHCP. If your
network has DHCP, or you are creating a peer-to-peer network, your DVR can obtain its
IP address automatically.
, because it
If your network does not have DHCP, you must assign an IP address for your DVR. If you
assign an IP address to your DVR, remember that:
•
The first three sets of numbers in the IP address usually must match the first sets of
numbers in the IP address used by another device on the network (for example, a
computer). The first three sets of numbers for IP addresses on a home network are
usually: '192.168.0' or '192.168.1.'
•
If the first three sets of numbers match those of another IP address, the last set of
numbers has to be unique.
For example, two IP addresses for devices on the same network might be '192.168.1.5'
and '192.168.1.6'.
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