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Allnet ALL-VPN20 Manual

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arp -d
arp -s Router LAN IP Router LAN MAC
For those internal network attacked by Arp, the source must be identified. Method: If the PC fails to
go online or there is packet loss of ping, in the DOS screen, input arp –a command to check if the MAC
address of the gateway is the same with the device MAC address. If not, the PC corresponding to the
MAC address is the source of attack.
Solutions for other device users are to make a two-way binding of the IP address and MAC address
from both of the PC and device ends in order to carry out the prevention work. However, this is more
complicated because the search for the IP and address and MAC increases the workload. Moreover,
there is greater possibility of making errors during the operation.
c) Bind the IP/MAC Address from Device End:
Enter “Setup” under DHCP page. On the down right corner of the screen, there is “IP and MAC Binding,”
where users may create IP and MAC binding. On “Enabled,” click on “√” and select “Add to List.” Repeat these
steps to add other IP addresses and MAC binding, followed by clicking “Apply” at the bottom of the page.
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