ip arp inspection trust
To configure a Layer 2 interface as a trusted ARP interface, use the ip arp inspection trust command. To
configure a Layer 2 interface as an untrusted ARP interface, use the no form of this command.
ip arp inspection trust
no ip arp inspection trust
Syntax Description
This command has no arguments or keywords.
Command Default
By default, all interfaces are untrusted ARP interfaces.
Command Modes
Interface configuration
Command History
ModificationRelease
This command was introduced.4.0(1)
Usage Guidelines
You can configure only Layer 2 Ethernet interfaces as trusted ARP interfaces.
This command does not require a license.
Examples
This example shows how to configure a Layer 2 interface as a trusted ARP interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip arp inspection trust
switch(config-if)#
Related Commands
DescriptionCommand
Displays the Dynamic ARP Inspection (DAI)
configuration status.
show ip arp inspection
Displays the trust state and the ARP packet rate for
a specified interface.
show ip arp inspection interface
Displays DHCP snooping configuration, including
DAI configuration.
show running-config dhcp
Cisco Nexus 7000 Series Security Command Reference
384
I Commands
ip arp inspection trust