D-Link xStack DGS-3420 Series Reference Manual page 297

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
drop - Specifies to discard if the packet has the Option 82 field. If the packet, that comes from the
client side, contains an Option 82 value, then the packet will be dropped. If the packet, that comes
from the client side doesn't contain an Option 82 value, then insert it's own Option 82 value into
the packet.
keep - Specifies to retain the existing Option 82 field in the packet. The default setting is replace. If
the packet, that comes from the client side, and contains an Option 82 value, then keep the old
Option 82 value. If the packet, that comes from the client side, doesn't contain an Option 82 value,
then insert it's own Option 82 value into the packet.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To configure the policy of DHCP relay agent information Option 82:
DGS-3420-28SC:admin#config dhcp_relay option_82 policy replace
Command: config dhcp_relay option_82 policy replace
Success
DGS-3420-28SC:admin#
21-14 config dhcp_relay option_82 remote_id
Description
This command is used to configure the remote ID string of the DHCP relay agent information Option
82 of the Switch.
Format
config dhcp_relay option_82 remote_id [default | user_define <desc 32>]
Parameters
default - Use the switch's system MAC address as remote ID.
user_define - Use the user-defined string as remote ID. Space characters are allowed in the string.
<desc 32> - The user-defined string can be up to 32 characters long.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To configure the remote ID string of the DHCP relay agent information Option 82:
DGS-3420-28SC:admin#config dhcp_relay option_82 remote_id user_define D-Link Switch
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