Cisco 300 Series Cli Manual page 567

Stackable managed switches

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preference {[maximum {

no preference [maximum] [minimum]

set by the value argument. Range 0-255. A value of the high boundary must

be equal to or greater than a value of the low boundary.

maximum disable—Disables verification of the high boundary of the

advertised preference value.

value argument. Range 0-255.

minimum disable—Disables verification of the lower boundary of the

advertised preference value.

Default Configuration

Policy attached to port or port channel: the value configured in the policy attached

to the VLAN.

Policy attached to VLAN: global configuration.

Command Mode

DHCP Guard Policy Configuration mode

User Guidelines

Use this command to change the global configuration specified by the

guard preference

command on the port to which this policy applies.

Use the disable keyword to disable verification in both global or VLAN

configuration.

The following example defines a DHCPv6 Guard policy named policy1, places the

switch in DHCPv6 Guard Policy Configuration mode, and defines a minimum

preference value of 10:

switchxxxxxx(config)#

| disable}] [minimum {

—Advertised preference value is lower or equal than that

—Advertised preference value is greater than or equal to the

ipv6 dhcp guard policy policy1

OL-32830-01 Command Line Interface Reference Guide

IPv6 First Hop Security

| disable}]}