D-Link DGS-3120-24TC - ARP Spoofing Prevention Settings

xStack® DGS-3120 Series Managed Switch Web UI Reference Guide
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Figure 8–40 Port Security Entries window
The fields that can be configured are described below:
Parameter Description
VLAN Name
The VLAN Name of the entry in the forwarding database table that has been
permanently learned by the Switch.
VID List
The VLAN ID of the entry in the forwarding database table that has been permanently
learned by the Switch.
Port List
Enter the port number or list here to be used for the port security entry search. When
All is selected, all the ports configured will be displayed.
MAC Address
The MAC address of the entry in the forwarding database table that has been
permanently learned by the Switch.
Lock Mode
The type of MAC address in the forwarding database table.
Click the Find button to locate a specific entry based on the information entered.
Click the Clear button to clear all the entries based on the information entered.
Click the Show All button to display all the existing entries.
Click the Clear All button to remove all the entries listed.
Click the Delete button to remove the specific entry.
ARP Spoofing Prevention Settings
The user can configure the spoofing prevention entry to prevent spoofing of MAC for the protected gateway. When
an entry is created, those ARP packets whose sender IP matches the gateway IP of an entry, but either its sender
MAC field or source MAC field does not match the gateway MAC of the entry will be dropped by the system.
To view this window, click Security > ARP Spoofing Prevention Settings as shown below:
Figure 8–41 ARP Spoofing Prevention Settings window
The fields that can be configured are described below:
Parameter Description
Gateway IP Address
Enter the gateway IP address to help prevent ARP Spoofing.