I recently opened a ticket with support to find out if there is a way in IPAM to see device Layer 3 MAC addresses from a Palo Alto Firewall on IPAM. I was told there was not currently that capability because IPAM uses the IpNetToMediaTable to search for MAC addresses and currently this is not supported by Palo Alto. I would like to get the functionality added for IPAM to be able to retrieve the Layer 3 MAC addresses on subnet devices living on a Palo Alto Firewall.