xStack® DES-3200 Series Layer 2 Ethernet Managed Switch CLI Reference Manual
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config dhcp_relay option_82 check
enabl
e – 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.
Parameters
disable When the field is toggled to disable, the relay agent will not
check the validity of the packet’s option 82 field.
Only Administrator-level users
can issue this command.
Restrictions
Example usage:
To configure DHCP relay option 82 check:
DES-3200-28:4#config dhcp_relay option_82 check enable
Command: config dhcp_relay option_82 check enable
Success.
DES-3200-28:4#
config dhcp_relay option_82 policy
Used to co
nfigure the re-forwarding policy of the relay agent
information option 82 of the Switch.
Purpose
config d
hcp_relay option_82 policy [replace | drop | keep]
Syntax
This
command is used to configure the re-forwarding policy of DHCP
relay agent information option 82 of the Switch.
Description
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.
Only Administrator-level users
can issue this command.
Restrictions
Example usage:
To configure DHCP relay option 82 policy:
DES-3200-28:4#config dhcp_relay option_82 policy replace
Command: config dhcp_relay option_82 policy replace
Success.
DES-3200-28:4#
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