D-Link DAS-3626 Guida Al Software
DAS-3600 Series Ethernet over VDSL Switch CLI Reference Manual
config dhcp_relay option_82 check
Purpose
Used to configure the checking mechanism of DHCP relay agent information option 82 of the
switch.
switch.
Syntax
config dhcp_relay option_82 check [enable | disable]
Description
This command is used to configure the checking mechanism of DHCP/BOOTP relay agent
information option 82 of the switch.
information option 82 of the switch.
Parameters
enable – When the field is toggled to enable, the relay agent will check the validity of the
packet’s option 82 field. If the switch receives a packet that contains the option 82 field from a
DHCP client, the switch drops the packet because it is invalid. In packets received from
DHCP servers, the relay agent will drop invalid messages.
disable
packet’s option 82 field. If the switch receives a packet that contains the option 82 field from a
DHCP client, the switch drops the packet because it is invalid. In packets received from
DHCP servers, the relay agent will drop invalid messages.
disable
−
When the field is toggled to disable, the relay agent will not check the validity of the
packet’s option 82 field.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure DHCP relay option 82 check:
DAS-3626:admin#config dhcp_relay option_82 check enable
Command: config dhcp_relay option_82 check enable
Command: config dhcp_relay option_82 check enable
Success.
DAS-3626:admin#
config dhcp_relay option_82 policy
Purpose
Used to configure the reforwarding policy of relay agent information option 82 of the switch.
Syntax
config dhcp_relay option_82 policy [replace | drop | keep]
Description
This command is used to configure the reforwarding policy of DHCP relay agent information
option 82 of the switch.
option 82 of the switch.
Parameters
replace
−
The option 82 field will be replaced if the option 82 field already exists in the packet
received from the DHCP client.
drop
−
The packet will be dropped if the option 82 field already exists in the packet received
from the DHCP client.
keep
−
The option 82 field will be retained if the option 82 field already exists in the packet
received from the DHCP client.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure DHCP relay option 82 policy:
DAS-3626:admin#config dhcp_relay option_82 policy replace
Command: config dhcp_relay option_82 policy replace
Command: config dhcp_relay option_82 policy replace
Success.
DAS-3626:admin#
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