Users Guide

Table Of Contents
DHCP snooping commands
arp inspection
Enables Dynamic ARP Inspection (DAI) on a VLAN.
Syntax
arp inspection
Parameters None
Defaults Disabled
Command Mode INTERFACE VLAN
Usage
Information
Dell EMC Networking recommends enabling DAI before enabling DHCP snooping.
Example
OS10(conf-if-vl-230)# arp inspection
Supported
Releases
10.5.0 or later
arp inspection-trust
Configures a port as trusted so that ARP frames are not validated against the DAI database.
Syntax
arp inspection-trust
Parameters None
Defaults All interfaces are untrusted
Command Mode INTERFACE
Usage
Information
NOTE: Dell EMC Networking recommends configuring the arp inspection-trust command on
the DHCP snooping trusted interfaces when DAI is enabled for a VLAN.
This command is accessible to users with sysadmin and secadmin roles.
Example
OS10(conf-if-eth1/1/33)# arp inspection-trust
Supported
Release
10.5.0 or later
arp inspection violation logging
Enables Dynamic ARP Inspection (DAI) on a VLAN.
Syntax
arp inspection violation logging
Parameters
violation loggingEnter violation logging to enable DAI violation logging.
Defaults Disabled
Command Mode CONFIGURATION
Usage
Information
When you enable the violation logging option, each violated ARP request is logged with the source
IP address, source MAC address, and interface details.
Example
OS10(config)# arp inspection violation logging
Supported
Releases
10.5.0 or later
System management 237