Dhcp Relay Agent Configuration; Introduction To Dhcp Relay Agent; Usage Of Dhcp Relay Agent; Dhcp Relay Agent Fundamentals - H3C S5100-SI Operation Manual

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DHCP Relay Agent Configuration

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

Introduction to DHCP Relay Agent

Configuring the DHCP Relay Agent
Displaying and Maintaining DHCP Relay Agent Configuration
DHCP Relay Agent Configuration Example
Troubleshooting DHCP Relay Agent Configuration
Currently, the interface-related DHCP relay agent configurations can only be made on VLAN
interfaces.
The contents of this chapter are only applicable to the S5100-EI series among S5100 series
switches.
Introduction to DHCP Relay Agent

Usage of DHCP Relay Agent

Since the packets are broadcasted in the process of obtaining IP addresses, DHCP is only applicable to
the situation that DHCP clients and DHCP servers are in the same network segment, that is, you need
to deploy at least one DHCP server for each network segment, which is far from economical.
DHCP relay agent is designed to address this problem. It enables DHCP clients in a subnet to
communicate with the DHCP server in another subnet so that the DHCP clients can obtain IP addresses.
In this case, the DHCP clients in multiple networks can use the same DHCP server, which can decrease
your cost and provide a centralized administration.

DHCP Relay Agent Fundamentals

Figure 2-1 illustrates a typical DHCP relay agent application.
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