Chapter 12
| Security Measures
ARP Inspection
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◆ DAI Status – Enables Dynamic ARP Inspection for the selected VLAN.
(Default: Disabled)
◆ ACL Name – Allows selection of any configured ARP ACLs. (Default: None)
◆ Static – When an ARP ACL is selected, and static mode also selected, the switch
only performs ARP Inspection and bypasses validation against the DHCP
Snooping Bindings database. When an ARP ACL is selected, but static mode is
not selected, the switch first performs ARP Inspection and then validation
against the DHCP Snooping Bindings database. (Default: Disabled)
Web Interface
To configure VLAN settings for ARP Inspection:
1. Click Security, ARP Inspection.
2. Select Configure VLAN from the Step list.
3. Enable ARP inspection for the required VLANs, select an ARP ACL filter to check
for configured addresses, and select the Static option to bypass checking the
DHCP snooping bindings database if required.
4. Click Apply.
Figure 211: Configuring VLAN Settings for ARP Inspection
Configuring
Interface Settings for
ARP Inspection
Use the Security > ARP Inspection (Configure Interface) page to specify the ports
that require ARP inspection, and to adjust the packet inspection rate.
Parameters
These parameters are displayed:
◆ Interface – Port or trunk identifier.
◆ Trust Status – Configures the port as trusted or untrusted. (Default: Untrusted)
By default, all untrusted ports are subject to ARP packet rate limiting, and all
trusted ports are exempt from ARP packet rate limiting.
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