{snmpUnknownSecurityModels, {snmp_standard_mib, variable_func, [snmpUnknownSecurityModels]}}. {snmpInvalidMsgs, {snmp_standard_mib, variable_func, [snmpInvalidMsgs]}}. {snmpUnknownPDUHandlers, {snmp_standard_mib, variable_func, [snmpUnknownPDUHandlers]}}.