Security
Dynamic ARP Inspection
357 Cisco Small Business 300 Series Managed Switch Administration Guide
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-NeverDisabled SYSLOG dropped packet messages.
STEP 2 Click Apply. The settings are defined, and the Running Configuration file is
updated.
Defining Dynamic ARP Inspection Interfaces Settings
Packets from untrusted ports/LAGs are checked against the ARP Access Rules
table and the DHCP Snooping Binding database if DHCP Snooping is enabled (see
the DHCP Snooping Binding Database page).
By default, ports/LAGs are ARP Inspection untrusted.
To change the ARP trusted status of a port/LAG:
STEP 1 Click Security > ARP Inspection > Interface Settings.
The ports/LAGs and their ARP trusted/untrusted status are displayed.
STEP 2 To set a port/LAG as untrusted, select the port/LAG and click Edit.
STEP 3 Select Trus ted or Untrusted and click Apply to save the settings to the Running
Configuration file.
Defining ARP Inspection Access Control
To add entries to the ARP Inspection table:
STEP 1 Click Security > ARP Inspection > ARP Access Control.
STEP 2 To add an entry, click Add.
STEP 3 Enter the fields:
ARP Access Control Name—Enter a user-created name.
MAC Address—MAC address of packet.
IP Address—IP address of packet.