DPtech FW1000 Series Firewall Products User Configuration Guide
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3.16.1.3 Gratuitous ARP
A gratuitous ARP reply is a reply to which no request has been made. Gratuitous ARP could mean both gratuitous
ARP request and gratuitous ARP reply. Gratuitous in this case means a request/reply that is not normally needed
according to the ARP specification but could be used in some cases. A gratuitous ARP request is an Address
Resolution Protocol request packet where the source and destination IP are both set to the IP of the machine issuing
the packet and the destination MAC is the broadcast address ff:ff:ff:ff:ff:ff. Ordinarily, no reply packet will occur.
To enter the gratuitous page, you can choose
Basic> Network > ARP > Gratuitous ARP
from navigation tree, as
shown in Figure3-121.
Figure3-121
Gratuitous ARP
3.16.1.4 Configure ARP probe period
To enter the configure ARP probe period page, you can choose
Basic> Network > ARP > Configure ARP probe
period
from navigation tree, as shown in Figure3-122.
Figure3-122
Configure ARP probe period
3.16.2 Anti-ARP-snooping
3.16.2.1 Anti-ARP-snooping
To enter the anti-ARP-snooping page, you can choose
Basic> Network > ARP > Anti-ARP snooping
from
navigation tree, as shown in
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