D-Link DAS-3636 Cli Reference Manual page 85

Example usage:
To delete an IP destination from the DHCP relay table:
DAS-3626:admin#config dhcp_relay delete ipif System 10.58.44.6
Command: config dhcp_relay delete ipif System 10.58.44.6
Success.
DAS-3626:admin#
config dhcp_relay option_82 state
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To configure DHCP relay option 82 state:
DAS-3626:admin#config dhcp_relay option_82 state enable
Command: config dhcp_relay option_82 state enable
Success.
DAS-3626:admin#
DAS-3600 Series Ethernet over VDSL Switch CLI Reference Manual
Used to configure the state of DHCP relay agent information option 82 of the switch.
config dhcp_relay option_82 state [enable | disable]
This command is used to configure the state of DHCP relay agent information option 82 of
the switch.
enable − When this field is toggled to Enabled the relay agent will insert and remove DHCP
relay information (option 82 field) in messages between DHCP server and client. When the
relay agent receives the DHCP request, it adds the option 82 information, and the IP address
of the relay agent (if the relay agent is configured), to the packet. Once the option 82
information has been added to the packet it is sent on to the DHCP server. When the DHCP
server receives the packet, if the server is capable of option 82, it can implement policies like
restricting the number of IP addresses that can be assigned to a single remote ID or circuit
ID. Then the DHCP server echoes the option 82 field in the DHCP reply. The DHCP server
unicasts the reply to the back to the relay agent if the request was relayed to the server by
the relay agent. The switch verifies that it originally inserted the option 82 data. Finally, the
relay agent removes the option 82 field and forwards the packet to the switch port that
connects to the DHCP client that sent the DHCP request.
disable − If the field is toggled to disable the relay agent will not insert and remove DHCP
relay information (option 82 field) in messages between DHCP servers and clients, and the
check and policy settings will have no effect.
Only Administrator and Operator-level users can issue this command.
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