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4.4.14.1 DHCP Option 82 Settings
The Managed Switch can add information about the source of client DHCP requests that
relay to DHCP server by adding Relay Agent Information. This helps provide authentication
about the source of the requests. The DHCP server can then provide an IP address based
on this information. The feature of DHCP Relay Agent Information adds Agent Information
field to the Option 82 field that is in the DHCP headers of client DHCP request frames.
Configure Opt82 Port Setting:
Select the option
DHCP Option 82 Settings
from the
Security Configuration
menu and
then the following screen page appears.
DHCP Opt82 Relay Agent:
To enable or disable DHCP Option 82 Relay Agent Global
setting. When enabled, Relay Agent Information option is inserted by the DHCP relay agent
when forwarding client-originated DHCP packets to a DHCP server. Servers recognizing the
Relay Agent Information option may use the Information to implement IP address or other
parameter assignment policies. Switch or Router (as the DHCP relay agent) intercepting the
DHCP requests, appends the circuit ID + remote ID into the option 82 fields and forwards
the request message to DHCP server.
Opt82 Port:
By default, all ports (port 1~24) are Opt82-enabled ports.
Enable (V):
Add Agent information.
Disable:
Forward.
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