WebEye E10/E104
WebEye E10/E104
User’s Guide
64
(Appendix 4)
Utilizing IP Addresses on Local Network
1. Introduction
Increasingly, most of our businesses are done via Internet. IP addresses are what we utilize to
access to the Internet.
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.
2. IP Construction and Network Class
1) IP Construction
(xxx: 0 – 255)
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 127 to 191 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 225 at room ‘X1’. E-class networks are
reserved.
xxx
xxx
xxx
xxx
X1
X2
X3
X4
