DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
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Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
When DHCP Option 82 is enabled, the DHCP packet received from the client will be inserted with an
Option 82 field before being relayed to the server. The DHCP Option 82 contains two sub-options
respectively the circuit ID sub-option and remote ID sub-option.
Administrators can use the
ip dhcp relay information option remote-id
command to specify a user-
defined string for the remote ID sub-option.
Example
This example shows how to enable the insertion of Option 82 during the relay of DHCP request packets.
Switch# configure terminal
Switch(config)# ip dhcp relay information option
Switch(config)#
21-5 ip dhcp relay information option-insert
This command is used to enable or disable the insertion of Option 82 for an interface during the relay of
DHCP request packets. Use the
no
command to remove the configuration of the insert function for the
interface.
ip dhcp relay information option-insert [none]
no ip dhcp relay information option-insert [none]
Parameters
none
(Optional) Specifies to disable insertion of Option 82 in the relayed
packet.
Default
None.
Command Mode
Interface Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
This command takes effect when the DHCP service is enabled.
Example
This example shows how to enable the insertion of Option 82 during the relay of DHCP request packets
and disables the insertion of Option 82 for interface VLAN 100. The insertion of Option 82 is disabled for
VLAN 100 but enabled for the remaining interfaces.
Switch# configure terminal
Switch(config)# ip dhcp relay information option
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