(2)  Since the ARP request packet is broadcasted, all hosts in the LAN can receive it. However, 
only the Host B recognizes and responds to the request. Host B sends back an ARP reply 
packet to Host A, with its MAC address carried in the packet.   
(3)  Upon receiving the ARP reply packet, Host A adds the IP address and the corresponding 
MAC address of Host B to its ARP Table for the further packets forwarding. 
ARP Scanning function enables the switch to send the ARP request packets of the specified IP 
field to the Hosts in the LAN or VLAN. Upon receiving the ARP reply packet, the switch can get 
the IP address, MAC address, VLAN and the connected port number of the Host by analyzing 
the packet and bind them conveniently. 
Choose the menu Network Security→IP-MAC Binding→ARP  Scanning  to load the following 
page. 
 
Figure 12-4 ARP Scanning 
The following entries are displayed on this screen: 
  Scanning Option 
Specify the Start IP Address.   
Specify the End IP Address. 
Click the Scan button to scan the Hosts in the LAN. 
  Scanning Result 
 
Select the desired entry to be deleted or bound. It is 
multi-optional. 
Displays the Host Name here. 
Displays the IP Address of the Host. 
Displays the MAC Address of the Host. 
Displays the VLAN ID here. 
Displays the number of port connected to the Host. 
Displays the Protect Type of the entry. 
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