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The IP-MAC Binding function allows the switch to bind the IP address, MAC address, VLAN ID
and the connected Port number of the Host together when the Host connects to the switch. Based
on the predefined IP-MAC Binding entries, the ARP Inspection functions to detect the ARP packets
and filter the illegal ARP packet so as to prevent the network from ARP attacks.
The ARP Inspection function is implemented on the ARP Detect, ARP Defend and ARP
Statistics pages.
12.2.1 ARP Detect
ARP Detect feature enables the switch to detect the ARP packets based on the bound entries in
the IP-MAC Binding Table and filter the illegal ARP packets, so as to prevent the network from
ARP attacks, such as the Network Gateway Spoofing and Man-In-The-Middle Attack, etc.
Choose the menu Network Security →ARP Inspection →ARP Detect to load the following
page.
Figure 12-13 ARP Detect
The following entries are displayed on this screen:
ARP Detect
ARP Detect:
Enable/Disable the ARP Detect function, and click the Ap
ply
button to apply.
Trusted Port
Trusted Port:
Select the port for which the ARP Detect function is unnecessary
as the Trusted Port. The specific ports, such as up-
linked port,
routing port and LAG port, should be set as Trusted Port. To
ensure the norma
l communication of the switch, please
configure the ARP Trusted Port before enabling the ARP Detect
function.
Note:
ARP Detect and ARP Defend cannot be enabled at the same time.
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