H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 263)

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DHCP
NOTE:
•
After the DHCP client is enabled on an interface, the interface can dynamically obtain an IP address and
other configuration parameters from the DHCP server. This facilitates configuration and centralized
management. For more information about the DHCP client configuration, see the chapters "VLAN
interface configuration " and "Port management."
• For more information about DHCP, see H3C WX3000E Series Wireless Switches Switching Engine
Configuration Guide.
Overview
Introduction to DHCP
The Dynamic Host Configuration Protocol (DHCP) provides a framework to assign configuration
information to network devices.
DHCP uses the client-server model.
Figure 224 shows a typical DHCP application.
Figure 224 A typical DHCP application
Introduction to DHCP snooping
NOTE:
The DHCP snooping-enabled device must be either between the DHCP client and relay agent, or between
the DHCP client and server. It does not work if it is between the DHCP relay agent and DHCP server.
As a DHCP security feature, DHCP snooping can implement the following:
• Recording IP-to-MAC mappings of DHCP clients
• Ensuring DHCP clients to obtain IP addresses from authorized DHCP servers