The management information definitions to extend the View-based Access Control Model (RFC3415) for SNMP. This MIB extends the 'SNMP-VIEW-BASED-ACM-MIB' to allow each combination of a 'securityModel' and a 'securityName' to be mapped into additional groupNames. The groups identified by these mappings are in addition to those identified by 'vacmGroupName' of the 'vacmSecurityToGroupTable'.