This read-write TruthValue controls the administrative state of whether the firewall sends an SNMP notification when a statically configured MAC address moves to a new port, which could happen either from a legitimate physical relocation of the device or from MAC address spoofing. An admin enables this to get alerted to potential spoofing attempts or unauthorized device moves on a transparent firewall's L2 segment. Turning this on for a segment with critical statically-pinned devices would let an admin catch a spoofing attempt targeting one of those devices as soon as it occurs.