3com WL-575 Manual De Usuario

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Dynamic Host Configuration Protocol (DHCP) can dynamically allocate an IP 
address and other configuration information to network clients that broadcast a 
request. To receive the broadcast request, the DHCP server would normally have 
to be on the same subnet as the client. However, when the access point’s DHCP 
relay agent is enabled, received client requests can be forwarded directly by the 
access point to a known DHCP server on another subnet. Responses from the 
DHCP server are returned to the access point, which then broadcasts them back 
to clients.

Table 15   DHCP Relay Commands

dhcp-relay enable
This command enables the access point’s DHCP relay agent. Use the no form to 
disable the agent.

[no] dhcp-relay enable

Disabled

Global Configuration

• For the DHCP relay agent to function, the primary DHCP server must be 

configured using the dhcp-relay primary command. A secondary DHCP 
server does not need to be configured, but it is recommended.

• If there is no response from the primary DHCP server, and a secondary 

server has been configured, the agent will then attempt to send DHCP 
requests to the secondary server.

Command

Function

Mode

Page

dhcp-relay enable

Enables the DHCP relay agent

GC

dhcp-relay

Sets the primary and secondary DHCP server 
address

GC

show dhcp-relay

Shows current DHCP relay configuration 
settings

Exec