CLI Guide

Layer 2 Switching Commands 556
Command History
Command introduced in version 6.6.0 firmware.
Example
This example globally enables IPDT and sets the source IP address in the
ARP packet destined to 10.5.5.20 to 10.5.5.1.
console(config)#ip device tracking
console(config)#ip device tracking probe auto-source fallback 0.0.0.1
255.255.255.0 override
ip device tracking maximum
Use the ip device tracking maximum command to configure the maximum
number of IPDT table entries per interface. Use the no form of the command
to use the default limit.
Syntax
ip device tracking maximum number
no ip device tracking maximum
• number—The number of entries learned on an interface by IPv4DT. The
range is 0 to 10.
Default Configuration
There is no default limit.
Command Mode
Interface (Ethernet or Port-Channel) Configuration mode
User Guidelines
Invoking the normal form of the command (ip device tracking maximum
value) clears all the entries learned on a specified interface and sets the
maximum entries to be learned on that interface. Configuring the maximum
limit to 0 effectively disables IPDT on the interface.
For interfaces with an administrator-specified limit, if the number of entries
on an interface exceeds the configured limit, all entries associated with the
interface are deleted from the table.