H3C Technologies H3C S10500 Series Switches - Manual (Page 68)

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If a client’s
requesting
message has…
Handling
strategy
Padding format The DHCP relay agent will…
— 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.
no Option 82
— user-defined
Forward the message after adding the
user-defined Option 82.
DHCP relay agent configuration task list
Complete the following tasks to configure the DHCP relay agent:
Task Remarks
Enabling DHCP Required
Enabling the DHCP relay agent on an interface Required
Correlating a DHCP server group with a relay agent interface Required
Configuring the DHCP relay agent security functions Optional
Enabling offline detection Optional
Configuring the DHCP relay agent to release an IP address Optional
Configuring the DHCP relay agent to support Option 82 Optional
Enabling DHCP
Enable DHCP before performing other configurations related to the DHCP relay agent.
Follow these steps to enable DHCP:
To do… Use the command… Remarks
Enter system view system-view —
Enable DHCP dhcp enable
Required
Disabled by default.
Enabling the DHCP relay agent on an interface
With the DHCP relay agent enabled, an interface forwards incoming DHCP requests to a DHCP server
for address allocation.
Follow these steps to enable the DHCP relay agent on an interface:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—