Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
You could force a Gratuitous ARP in ASA with the following debug command:
debug menu ipaddrutl 6 <IP>
Example:
#debug menu ipaddrutl 6 1.1.1.1
Gratuitous ARP sent for 1.1.1.1
