This read-only object holds an IPv4 address carried as a variable binding within the COM21 NMAPS alert-message notification, identifying the device or interface the message pertains to. Since the NMAPS module logs alert messages system-wide, an administrator inspecting a logged alert relies on this address field to pinpoint exactly which cable-network element triggered it. For example, when a headend forwards an alert about a cable modem going offline, nmapsIpAddress would report that modem's IP so the operator can look it up without cross-referencing other tables.