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Chapter 12
| Security Measures
ARP Inspection
Configuring VLAN
Settings for ARP
Inspection
Web Interface
To configure global settings for ARP Inspection:
1.
Click Security, ARP Inspection.
2.
Select Configure General from the Step list.
3.
Enable ARP inspection globally, enable any of the address validation options,
and adjust any of the logging parameters if required.
4.
Click Apply.
Figure 198: Configuring Global Settings for ARP Inspection
Use the Security > ARP Inspection (Configure VLAN) page to enable ARP inspection
for any VLAN and to specify the ARP ACL to use.
Command Usage
ARP Inspection VLAN Filters (ACLs)
◆
By default, no ARP Inspection ACLs are configured and the feature is disabled.
◆
ARP Inspection ACLs are configured within the ARP ACL configuration page
(see
page
304).
◆
ARP Inspection ACLs can be applied to any configured VLAN.
◆
ARP Inspection uses the DHCP snooping bindings database for the list of valid
IP-to-MAC address bindings. ARP ACLs take precedence over entries in the
DHCP snooping bindings database. The switch first compares ARP packets to
any specified ARP ACLs.
◆
If Static is specified, ARP packets are only validated against the selected ACL –
packets are filtered according to any matching rules, packets not matching any
rules are dropped, and the DHCP snooping bindings database check is
bypassed.
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