Configuration Task List 815
If a reply returned by the DHCP server contains Option 82, the DHCP relay agent
will remove the Option 82 before forwarding the reply to the client.
Configuration Task
List
Complete the following tasks to configure the DHCP relay agent:
Configuring the DHCP
Relay Agent
Enabling DHCP Enable DHCP before performing other DHCP-related configurations.
Follow these steps to enable DHCP:
Enabling the DHCP Relay
Agent on an Interface
With this task completed, upon receiving a DHCP request from the enabled
interface, the relay agent will forward the request to a DHCP server for address
allocation.
Follow these steps to enable the DHCP relay agent on an interface:
If a client’s
requesting
message has...
Handling
strategy
Padding
format The DHCP relay agent will...
Option 82 Drop Random Drop the message.
Keep Random Forward the message without changing Option 82.
Replace normal Forward the message after replacing the original
Option 82 with the Option 82 padded in normal
format.
verbose Forward the message after replacing the original
Option 82 with the Option 82 padded in verbose
format.
no Option 82 - normal Forward the message after adding the Option 82
padded in normal format.
- verbose Forward the message after adding the Option 82
padded in verbose format.
Task Remarks
“Enabling DHCP” on page 815 Required
“Enabling the DHCP Relay Agent on an Interface” on page 815 Required
“Correlating a DHCP Server Group with a Relay Agent Interface” on page 816 Required
“Configuring the DHCP Relay Agent to Send a DHCP-Release Request” on page
816
Optional
“Configuring the DHCP Relay Agent Security Functions” on page 817 Optional
“Configuring the DHCP Relay Agent to Support Option 82” on page 818 Optional
To do… Use the command… Remarks
Enter system view system-view -
Enable DHCP dhcp enable Required
Disabled by default.
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