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A. If a DHCP request is with Opt82 Agent information and then the Managed Switch will drop it
because it is not marked as a trust port.
B. If a DHCP request is without Opt82 Agent information and then the Managed Switch will add
Opt82 Agent information and then forward it.
4.4.12.2 IP Source Guard Settings
Select the option
IP Source Guard Settings
from the
Security Configuration
menu and then the
following screen page appears.
Source Guard:
To specify authorized access information for each port. There are three options
available.
Unlimited:
Non-Limited (Static IP or DHCP-assigned IP).
DHCP:
DHCP-assigned IP address only.
Fix-IP:
Only Static IP (You must create Static IP table first. Refer to
Static IP Table
Configuration
for further information.).
4.4.12.3 Filter Configuration
Select the option
Filter Configuration
from the
Security Configuration
menu and then the
following screen page appears.