configure ip dad

configure ip dad [off | on | {on} attempts max_solicitations] {{vr} vr_name | vr all}


Configures the operation of the duplicate address detection (DAD) feature on the specified VR.

Syntax Description

max_solicitations Specifies the number of times the DAD feature tests for a duplicate address. The range is 1 to 10, and the default value is 1.
vr_name Specifies a VR on which to enable this feature.


DAD status: Off on VR-Default.

Maximum solicitations: 1 on VR-Default.

If you do not specify a VR or VRF, the current VR context is used.

Usage Guidelines

This command can be entered in a configuration file for execution at switch startup, or it can be entered at the CLI prompt.

Changes to the number of solicitations configuration take affect the next time the DAD check is run.

By default, this command applies to the current VR context, if no VR name is specified. If vr all is specified, the command applies to all user VRs and VR-Default.


The following command enables the DAD feature on all user VRs and VR-Default:

configure ip dad on vr all


This command was first available in ExtremeXOS 12.6.

Platform Availability

This command is available on BlackDiamond X8, BlackDiamond 8800 series switches and Summit family switches.