Dhcp Relay Agent Configuration; Introduction To Dhcp Relay Agent; Application Environment; Fundamentals - H3C S5120-SI Series Configuration Manual

DHCP relay agent configuration

Introduction to DHCP relay agent

Application environment

Via a relay agent, DHCP clients can communicate with a DHCP server on another subnet to obtain
configuration parameters. DHCP clients on different subnets can contact the same DHCP server rather
than having a DHCP server on each subnet. This centralizes management and reduces cost.

Fundamentals

Figure 9 shows a typical application of the DHCP relay agent. DHCP relay agent application
Figure 9 DHCP relay agent application
DHCP client
DHCP client
No matter whether a relay agent exists or not, the DHCP server and client interact with each other in a
similar way. See Figure 10.
DHCP client
DHCP relay agent
DHCP client
IP network
DHCP server
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