Configuration Guide 561
Configuring Network Security ARP Inspection Configurations
4.1.2 Configuring ARP Defend
With ARP Defend enabled, the switch can terminate receiving the ARP packets for 300
seconds when the transmission speed of the legal ARP packet on the port exceeds the
defined value so as to avoid ARP Attack flood.
Choose the menu Network Security > ARP Inspection > ARP Defend to load the following
page.
Figure 4-2 ARP Defend
Follow these steps to configure ARP Defend:
1) Select one or more ports and configure the parameters.
Defend Enable the ARP Defend feature.
Speed (10-100)
pps
Specify the maximum number of the ARP packets that can be received on the
port per second. The valid values are from 10 to 100 pps (packet/second), and
the default value is 15.
Current Speed
(pps)
Displays the current speed of receiving the ARP packets on the port.
Status Displays the status of the ARP attack:
Normal: The forwarding of ARP packets on the port is normal.
Drop ARP300sec: The speed of receiving the ARP packets has exceeded the
specified value, and the port will drop the received ARP packets in the next 300
seconds.
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