NetXMS Support Forum

In the v6.0 release notes, fixed issues there is:

NX-2437 (Ability to change MAC address on an interface)

How exactly would I do this?  I have a couple old devices with interface MACs coming in as 00:00:00:00:00:00 and would like to set manually.

NX-2437 only adds option to change MAC address for interfaces that were created manually, so guess this won't work in your case.