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3com WX3000 Manuel D’Utilisation

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DHCP Relay Agent Configuration 
When configuring the DHCP relay agent, go to these sections for information you are interested in: 
z 
z 
z 
z 
z 
 
 
Currently, the interface-related DHCP relay agent configurations can only be made on VLAN interfaces. 
 
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 
 illustrates a typical DHCP relay agent application.