Ip Helper Dhcp-Snooping Option-82 Data-Insertion - Alcatel-Lucent OmniSwitch 6250 Cli Reference Manual

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DHCP Relay Commands

ip helper dhcp-snooping option-82 data-insertion

Globally enables or disables DHCP Option-82 data insertion for DHCP packets. When this feature is

enabled, the relay agent inserts the Option-82 field into DHCP packets before forwarding them to the

DHCP server.

ip helper dhcp-snooping option-82 data-insertion {enable | disable}

Syntax Definitions

By default, this feature is disabled.

Platforms Supported

OmniSwitch 6250

Usage Guidelines

When DHCP Snooping is enabled at the switch level, Option-82 data insertion and MAC address veri-

fication are enabled by default. In addition, the trust mode for all ports is set to the DHCP client only

Using this command to change the operational status for Option-82 data insertion is only allowed when

DHCP Snooping is globally enabled for the switch.

Note that disabling the Option-82 data insertion operation is not allowed when the binding table func-

tionality is enabled.

-> ip helper dhcp-snooping option-82 data-insertion enable

-> ip helper dhcp-snooping option-82 data-insertion disable

Release History

Release 6.6.1; command was introduced.

Related Commands

ip helper dhcp-snooping

option-82 format

ip helper dhcp-snooping

show ip helper

OmniSwitch 6250 CLI Reference Guide

Enables inserting the DHCP Option-82 field into DHCP packets.

Disables inserting the DHCP Option-82 field into DHCP packets.

Configures the type of information that is inserted in both the Circuit ID

and Remote ID suboption of the Option-82 field.

.Globally enables or disables DHCP Snooping for the switch.

Enables or disables the DHCP Snooping binding table functionality

Displays the current DHCP configuration for the switch.

November 2009