CLI Guide

Layer 2 Switching Commands 555
Command History
Command introduced in version 6.6.0 firmware.
Example
This example globally enables IPDT and sets the transition delay to 10
seconds.
console(config)#ip device tracking
console(config)#ip device tracking probe delay 10
ip device tracking probe auto-source fallback
Use the ip device tracking probe auto-source fallback command to configure
the source IP address sent in ARP probes. Use the no form of the command
to use the default IP address in ARP probes.
Syntax
ip device tracking probe auto-source fallback host-ip mask override
no ip device tracking probe auto-source fallback
• host-ip—An IPv4 host address in dotted quad notation. Only non-masked
bits should be set in the IP address (e.g., 0.0.0.1).
• mask—An IPv4 mask used for source IP of the IPDT entries in dotted
quad notation (e.g., 255.255.0.0). The ARP probe destination IP address is
the inverse of the mask AND’d with the host-ip address parameter which is
then OR’d with the destination IP address AND’d with the mask.
Default Configuration
The source IP address in the probe packet for non-routing interfaces is set to
the 0.0.0.0 address.
Command Mode
Global Configuration mode
User Guidelines
This command only applies to non-routed interfaces.