DHCP Screening Port Settings
The following window will allow users to enable ports on the switch to be used in DHCP Server Screening. To view
this window, click Security > DHCP Server Screening > DHCP Screening Port Settings:
Figure 6 - 11 DHCP Screening Port Settings window
The user may set the following parameters:
Parameter Description
Filte
Trap Log State
Click the Enabled or Disabled button to enable or disable the function which will record logs
and send traps when the switch detects the illegal DHCP server packets.
Suppress Duration
The DHCP server filtering function filters any illegal DHCP server packets. The DHCP server
who sends the illegal packets will be logged. This command is used to suppress the logging
of DHCP servers who continue to send illegal DHCP packets. The same illegal DHCP server
IP address that is detected will be logged only once regardless of how many illegal packets
are sent. The log can be suppressed by 1 minute, 5 minutes or 30 minutes. The default
value is 5 minutes.
From Port/To Port
A consecutive group of ports may be configured starting with the selected port.
State Choose Enabled to enable the DHCP server or Disabled to disable. The default is Disabled.
After setting the previous parameters, click Apply to allow your changes to be implemented. The DHCP Port
Information Table shows which ports are enabled or disabled for DHCP Sever Screening.
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