3Com WX3000 Configure a handling policy for Dhcp packets with Option, Dhcp-snooping information

To do…	Use the command…	Remarks
Enter system view	system-view	—
Enable DHCP-snooping Option	dhcp-snooping information	Required
		By default, DHCP snooping
82 support	enable
		Option 82 support is disabled.

Configure a handling policy for DHCP packets with Option 82

Follow these steps to configure a handling policy for DHCP packets with Option 82:

To do…	Use the command…	Remarks
Enter system view	system-view	Optional
Configure a global handling	dhcp-snooping information	Optional
policy for requests that contain		The default handling
	strategy { drop keep replace }
Option 82		policy is replace.
Enter Ethernet port view	interface interface-type	—
	interface-number
Configure a handling policy for		Optional
requests that contain Option 82	dhcp-snooping information
		The default policy is
received on the specified	strategy { drop keep replace }
		replace.
interface

If a handling policy is configured on a port, this configuration overrides the globally configured handling policy for requests received on this port, while the globally configured handling policy applies on those ports where a handling policy is not natively configured.

Configure the storage format of Option 82

The device supports the HEX or ASCII format for the Option 82 field.

Follow these steps to configure a storage format for the Option 82 field:

To do…	Use the command…	Remarks
Enter system view	system-view	—
Configure a storage format for	dhcp-snooping information	Optional
the Option 82 field	format { hex ascii }	By default, the format is hex.

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