Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip arp inspection filter vlan
ip arp inspection filter vlan
To permit ARPs from hosts that are configured for static IP when DAI is enabled and to define an ARP
access list and apply it to a VLAN, use the ip arp inspection filter vlan command. To disable this
application, use the no form of this command.
ip arp inspection filter arp-acl-name vlan vlan-range [static]
no ip arp inspection filter arp-acl-name vlan vlan-range [static]
Syntax Description
Defaults No defined ARP ACLs are applied to any VLAN.
Command Modes Global configuration mode
Command History
Usage Guidelines When an ARP access control list is applied to a VLAN for dynamic ARP inspection, the ARP packets
containing only the IP-to-Ethernet MAC bindings are compared against the ACLs. All other packet types
are bridged in the incoming VLAN without validation.
This command specifies that the incoming ARP packets are compared against the ARP access control
list, and the packets are permitted only if the access control list permits them.
If the access control lists deny the packets because of explicit denies, the packets are dropped. If the
packets are denied because of an implicit deny, they are then matched against the list of DHCP bindings
if the ACL is not applied statically.
Examples This example shows how to apply the ARP ACL static hosts to VLAN 1 for DAI:
Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ip arp inspection filter static-hosts vlan 1
Switch(config)# end
Switch#
Switch# show ip arp inspection vlan 1
Source Mac Validation : Enabled
Destination Mac Validation : Disabled
IP Address Validation : Disabled
arp-acl-name Access control list name.
vlan-range VLAN number or range; valid values are from 1 to 4094.
static (Optional) Specifies that the access control list should be applied statically.
Release Modification
12.1(19)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E