3Com 8760 User Guide - Page 144

CHAPTER 5: COMMAND LINE INTERFACE DHCP Relay Commands 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 16 DHCP Relay Commands Command dhcp-relay enable dhcp-relay show dhcp-relay Function Mode Enables the DHCP relay agent GC Sets the primary and secondary DHCP server GC address Shows current DHCP relay configuration Exec settings Page 5-42 5-43 5-43 dhcp-relay enable This command enables the access point's DHCP relay agent. Use the no form to disable the agent. Syntax [no] dhcp-relay enable Default Setting Disabled Command Mode Global Configuration Command Usage • 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. Example Enterprise AP(config)#dhcp-relay enable Enterprise AP(config)# 5-42