D-Link xStack DGS-3120 Series Cli Reference Manual page 317

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xStack DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch CLI Reference Guide
Example
To configure the ciruit ID as vendor 2:
DGS-3120-24TC:admin#config dhcp_relay option_82 circuit_id vendor2
Command: config dhcp_relay option_82 circuit_id vendor2
Success.
DGS-3120-24TC:admin#
25-21 config dhcp_relay option_82 policy
Description
This command is used to specify the way to process the packets from the client side which have
the 82 option field, and are not dropped since the check function is disabled.
Format
config dhcp_relay option_82 policy [replace | drop | keep]
Parameters
replace - Replace the existing option 82 field in the packet. The Switch will use it's own Option 82
value to replace the old Option 82 value in the packet.
drop - Discard if the packet has the option 82 field. If the packet from the client side contains an
Option 82 value, the packet will be dropped. If the packet from the client side doesn't contain
an Option 82 value, it inserts it's own Option 82 value into the packet.
keep - Retain the existing option 82 field in the packet. If the packet from the client side contains
an Option 82 value, it keeps the old Option 82 value. If the packet from the client side doesn't
contain an Option 82 value, it inserts 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 DHCP relay option 82 policy:
DGS-3120-24TC:admin#config dhcp_relay option_82 policy replace
Command: config dhcp_relay option_82 policy replace
Success.
DGS-3120-24TC:admin#
25-22 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.
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