TP-LINK TL-ER6120 User Manual Page 148

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Choose the menu FirewallAnti ARP SpoofingIP-MAC Binding to load the configuration page.
To add the host with IP address of 192.168.1.20 and MAC address of 00-11-22-33-44-aa to the list,
you can follow the settings below:
Settings:
IP Address: 192.168.0.20
MAC Address: 00-11-22-33-44-aa
Status: Activate
Click the <Add> button to apply. The other entries can be added in the same way.
3) Set Attack Defense
Choose the menu FirewallAnti ARP SpoofingIP-MAC Binding to load the configuration page.
Select all the items for General and set the GARP packets sending interval to be 1ms as the following
figure shows. Then click the <Save> button to apply.
Figure 4-21 IP-MAC Binding
4.3.4.2 WAN ARP Defense
To prevent the WAN ARP attack, you can bind the default gateway and IP address of WAN port.
Obtain the MAC address of WAN port by ARP Scanning first.
Choose the menu FirewallAnti ARP SpoofingARP Scanning to load the configuration page.
Enter the default gateway of the WAN port such as 58.51.128.254 in the Scanning Range field and
click the <Scan> button, the MAC address of the WAN port will display in the Scanning Result table.
After obtaining the MAC address of WAN port from Scanning Result table, select this entry, then click
the <Import> button to finish the binding operation.
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