Config Dhcp_Relay Port_Option_82 - D-Link DES-1210-52/ME Cli Reference Manual

Restrictions
Example usage:
To disable the DHCP relay option 82 on the Switch:
DES-1210-52/ME:5# config dhcp_relay option_82 state disable
Command: config dhcp_relay option_82 state disable
Success.
DES-1210-52/ME:5#

config dhcp_relay port_option_82

Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To configure vendor3 circuit_id of port 1 to "12345678":
DES-1210-28/ME:5# config dhcp_relay port_option_82 1 circuit_id
vendor3 12345678
DES-1210-52/ME L2 Metro Ethernet Switch CLI Reference Guide
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.
circuit_id [default | user_define <desc 32>] -
Only Administrator, operator or power user-level users can issue this
command.
To configure DHCP relay agent option 82 information of each port.
config dhcp_relay port_option_82 {<portlist>} [ circuit_id |
remote_id ] vendor3 <desc 32>
The config dhcp_relay port_option_82 is used to configure DHCP
relay agent option 82 information of each port.
<portlist> – Specifies the ports' option 82 information.
circuit_id – Specifies the content in the Circuit ID.
remote_id – Specifies the content in the Remote ID.
vendor3 <desc 32> – To configure a apecific ports' vendor3 user
define string.
Only Administrator, operator or power user-level users can issue this
command.
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