WebGate WebEye A10 Guía de usuario descargar pdf (Pagina 43)

- 43 –

WebEye SPD User’s Guide

(Appendix 3)

Utilizing IP Addresses on Local Network

1. Introduction

Most of our businesses are done via Internet, lately. We play with information by transmitting through

e-mails and searching the world of Internet. IP address is what we utilize to access to the Internet.

Currently used IP addresses are limited. And there are 5 classes networks in the world for now, and a

network contains lots of IP addresses. A network can hold limited IP addresses. The numbers depend

on network class. 5 classes are from A to E, and the most common one is C class network.

2. IP construction and Network class

1) IP construction

(xxx (xxx: 0 – 255)

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

Total number of A-class networks is 128 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

Total number of B-class networks is 65,534 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

It is the most common network in the world, and the total number of C-class networks is 2,097,152

D class: A network that contains IP addresses from 224 to 239 at room ‘X1’. D-class network is for

multicasting, and it is not allowed to use for common users.

E class: A network that contains IP addresses from 240 to 225 at room ‘X1’. E-class network is

reserved.

3. C-class Network

1) Features of Addresses

IP address: Three digits number in room ‘X4’ are for Host ID, and the numbers are from 0 to 255.

Among the numbers, 0 is used for Network ID, 1 is used for Router IP(Gateway address) and 255 is

used for Broadcast address. Therefore the numbers from 2 to 244 are IP addresses that can be assigned

to WebEye, i-Rec Cam104, PC etc.

Network ID: It is to identify a network. Generally the first number is assigned as Network ID.

Gateway address: It is an IP address of router that is connecting Internet and local network. Remote

users can access local network over Internet through the gateway (router). Generally the second

number is assigned as Gateway address.

xxx xxx xxx xxx

X1 X2 X3 X4

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Comentarios a estos manuales

Sin comentarios

WebGate WebEye A10 Guía de usuario Pagina 43

Comentarios a estos manuales

Relacionado con productos y manuales para Cámaras De Seguridad WebGate WebEye A10