In a monitoring system for networked devices, a system, method, and computer program product for obtaining a globally-unique identifier for a network device, and sending the same to a central monitor responsible for monitoring devices on multiple networks. A remote monitoring workstation monitors devices connected to a network using IP-based SNMP commands and stores the device monitoring information in a database. The remote monitoring workstation queries the database to obtain an IP address and the collected monitoring information for a device, uses the IP address to request a globally-unique identifier (e.g., a MAC address) from a device using SNMP commands, then sends the monitoring information including the globally-unique device identifier to a central monitoring workstation via an e-mail message.