Ip Addressing Configuration; Ip Addressing Overview; Ip Address Classes - H3C S5820X Series Configuration Manual

4

IP Addressing Configuration

This chapter includes these sections:

IP Addressing Overview

Configuring IP Addresses
Displaying and Maintaining IP Addressing
IP Addressing Overview
This section covers these topics:

IP Address Classes

Special IP Addresses
IP Address Classes
On an IP network, a 32-bit IP address is used to identify a host. In general, IP addresses are written in
dotted decimal notation, for example, 10.1.1.1.
Each IP address has two parts:
Net ID: Identifies a network.
Host-id: Identifies a host on a network.
IP addresses are divided into five classes, as shown in the following figure (the blue parts represent
the address class fields).
Figure 4-1 IP address classes
0
Class A 0 Net-id
Class B 1 0
Class C 1 1 0
Class D 1 1 1 0
Class E 1 1 1 1 0
Table 4-1 describes the address ranges of these five classes.
7 15 23
Host-id
Net-id Host-id
Net-id
Multicast address
Reserved
31
Host-id
4-1