H3C Technologies H3C S3100 Series Switches - Manual (Page 362)

Operation Manual – DLDP
H3C S3100-52P Ethernet Switch Chapter 3 DHCP/BOOTP Client Configuration
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Chapter 3 DHCP/BOOTP Client Configuration
3.1 Introduction to DHCP Client
As the network scale expands and the network complexity increases, the network
configurations become more and more complex accordingly. It is usually the case that
the computer locations change (such as the portable computers in wireless networks)
or the number of the computers exceeds that of the available IP addresses. The
dynamic host configuration protocol (DHCP) is developed to meet these requirements.
DHCP adopts the client/server model, where DHCP clients request DHCP servers
dynamically for configuration information, and the DHCP servers in turn return
corresponding configuration information based on policies.
A typical DHCP implementation usually involves a DHCP server and multiple clients
(such as PCs and portable computers), as shown in Figure 3-1.
LAN
DHCP Server
DHCP Client DHCP Client
DHCP Client DHCP Client
Figure 3-1
A typical DHCP implementation
The interactions between a DHCP client and a DHCP server are shown in Figure 3-2.