Dhcp Overview; Introduction To Dhcp - H3C S5600 Series Operation Manual

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DHCP Overview

When configuring DHCP, go to these sections for information you are interested in:

Introduction to DHCP

DHCP IP Address Assignment
DHCP Packet Format
Protocol Specification
The function of removing DHCP snooping entries is added in this manual. For details, refer to
Displaying and Maintaining DHCP Snooping
The function of DHCP Inform Message Handling Feature Used in IRF System is added in this
manual. For details, refer to
System.
Introduction to DHCP
With networks getting larger in size and more complicated in structure, lack of available IP addresses
becomes the common situation the network administrators have to face, and network configuration
becomes a tough task for the network administrators. With the emerging of wireless networks and the
using of laptops, the position change of hosts and frequent change of IP addresses also require new
technology. Dynamic Host Configuration Protocol (DHCP) is developed to solve these issues.
DHCP adopts a client/server model, where the DHCP clients send requests to DHCP servers for
configuration parameters; and the DHCP servers return the corresponding configuration information
such as IP addresses to implement dynamic allocation of network resources.
A typical DHCP application includes one DHCP server and multiple clients (such as PCs and laptops),
as shown in Figure
Configuring DHCP Inform Message Handling Feature Used in IRF
1-1.
Configuration.
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