User`s guide

NETWORK IP CAMERA User’s Guide
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D. Utilizing IP Addresses on Local Network
Introduction
What we utilize to access to the Internet are done via Internet IP addresses increasingly.
Currently, IP addresses are limited. There are 5 classes’ of networks, and each network contains IP
addresses. A network can only hold a limited number of IP addresses. The number of IP addresses
depends on the network class. The 5 classes are labeled “A” through “E” with the most common one
being the “C” class network.
IP Construction and Network Class
1) IP Construction
(xxx: 0-255)
X1 X2 X3 X4 e.g. 192.168.1.1
2) Network Class
A Class: A network that contains IP addresses from 0 to 127 at room ‘X1”
Network ID: X1
Host ID: X2, X3, X4
There are 128 A-Class networks in the world.
B Class: A network that contains IP addresses from 0 to 127 at room ‘X1”
Network ID: X1, X2
Host ID: X3, X4
There are 65, 534 B-Class networks in the world.
C Class: A network that contains IP addresses from 192 to 223 at room ‘X1’.
Network ID: X1, X2, X3
Host ID: X4
The most common network in the world; there are 2,097,152 C-class networks in the world.
D Class: A network that contains IP addresses from 224 to 239 at room ‘X1’. D-class networks are
used for multicasting, and are not allowed for common use.
E Class: A network that contains IP addresses from 240 to 255 at room ‘X1’. E-class network are
reserved.
xxx xxx xxx xxx