ARP Inspection Interface Settings

Use the Interface Settings page to define trusted and untrusted interfaces. These settings are independent to the trusted interface settings defined for DHCP Snooping. ARP Inspection is enabled only on untrusted interfaces. To change the ARP trusted status of an interface:

Procedure

Step 1

Click Security > ARP Inspection > Interface Settings.

Step 2

Select the interface type (Port or LAG), and click Go.

Step 3

Select an interface, and click Edit.

Step 4

Enter the following information:

  • Interface—Select a port or LAG on which ARP Inspection trust mode can be enabled.

  • Trusted Interface—Click Yes to enable ARP Inspection trust mode on the interface, or click No to disable ARP Inspection trust mode on the interface

    • If enabled, the port or LAG is a trusted interface, and ARP inspection is not performed on the ARP requests or replies sent to or from the interface.

    • If disabled, the port or LAG is not a trusted interface, and ARP inspection is performed on the ARP requests or replies sent to or from the interface. By default, it is disabled.

  • Rate Limit (pps)—Enter the maximum rate that is allowed on the interface. The range is 1 to 50 pps and the default is 15.

Step 5

Click Apply. The ARP Inspection trusted interfaces are defined, and the Running Configuration is updated.