Operation Manual – DHCPH3C S5600 Series Ethernet Switches Chapter 3 DHCP Relay Agent Configuration3-1Chapter 3 DHCP Relay Agent ConfigurationWhen configuring the DHCP relay agent, go to these sections for information you areinterested in:z Introduction to DHCP Relay Agentz Configuring the DHCP Relay Agentz Displaying and Maintaining DHCP Relay Agent ConfigurationDHCP Relay AgentConfiguration Examplez Troubleshooting DHCP Relay Agent ConfigurationNote:Currently, the interface-related DHCP relay agent configurations can only be made onVLAN interfaces.3.1 Introduction to DHCP Relay Agent3.1.1 Usage of DHCP Relay AgentSince the packets are broadcasted in the process of obtaining IP addresses, DHCP isonly applicable to the situation that DHCP clients and DHCP servers are in the samenetwork segment, that is, you need to deploy at least one DHCP server for eachnetwork segment, which is far from economical.DHCP relay agent is designed to address this problem. It enables DHCP clients in asubnet to communicate with the DHCP server in another subnet so that the DHCPclients can obtain IP addresses. In this case, the DHCP clients in multiple networks canuse the same DHCP server, which can decrease your cost and provide a centralizedadministration.3.1.2 DHCP Relay Agent FundamentalsFigure 3-1 illustrates a typical DHCP relay agent application.
