Guides# Task-oriented guides for using the EtherLyzer command-line interface. Vendor Identification Single MAC address Read MAC addresses from a file Interactive input Command reference Inspect IEEE Assignments Basic usage Example output Registry categories Command reference Validate MAC Addresses Basic usage Bulk validation Output controls Command reference Format MAC Addresses Basic usage Convert separators Cisco-style blocks Uppercase output Correct supported typo-like input Bulk formatting Example Command reference Registry Database Supported registries Local data Synchronization Manual synchronization Automatic synchronization Offline operation Configuration Configuration options Example configuration Configuration precedence