Cisco Catalyst 3750-X Command Reference Manual page 288

Cisco ios release 15.2(1)e and later

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ip arp inspection validate

Usage Guidelines

You must specify at least one of the keywords. Each command overrides the configuration of the

previous command; that is, if a command enables src-mac and dst-mac validations, and a second

command enables IP validation only, the src-mac and dst-mac validations are disabled as a result of the

second command.

The allow-zeros keyword interacts with ARP access control lists (ACLs) in this way:

The no form of the command disables only the specified checks. If none of the options are enabled, all

checks are disabled.

This example show how to enable source MAC validation:

Switch(config)# ip arp inspection validate src-mac

You can verify your setting by entering the show ip arp inspection vlan vlan-range privileged EXEC

Related Commands

show inventory

Catalyst 3750-X and 3560-X Switch Command Reference

If you configure an ARP ACL to deny ARP probes, they are dropped even if the allow-zero keyword

is specified.

If you configure an ARP ACL that specifically permits ARP probes and configure the ip arp

inspection validate ip command, ARP probes are dropped unless you enter the allow-zeros

Displays the configuration and the operating state of dynamic ARP

inspection for the specified VLAN.

Catalyst 3750-X and 3560-X Switch Cisco IOS Commands

Catalyst 3560-x