Alcatel-Lucent OmniSwitch 6250, Cli Reference Manual, Page: 1299 / 2018

DHCP Relay Commands
OmniSwitch 6250 CLI Reference Guide November 2009 page 32-23
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
enable Enables inserting the DHCP Option-82 field into DHCP packets.
disable Disables inserting the DHCP Option-82 field into DHCP packets.
Defaults
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
mode.
•
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.
Examples
-> 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 Configures the type of information that is inserted in both the Circuit ID
and Remote ID suboption of the Option-82 field.
ip helper dhcp-snooping .Globally enables or disables DHCP Snooping for the switch.
ip helper dhcp-snooping
binding Enables or disables the DHCP Snooping binding table functionality
show ip helper Displays the current DHCP configuration for the switch.