Lantronix X300 Series X300 Series User Guide Rev B - Page 110

10: Services SNMPD Services > SNMPD The X300 series gateway uses Net-SNMP to implement SNMP v1, v2c, and v3 using both IPv4 and IPv6 to remotely manage and monitor network components and systems. The implementation includes an SNMP agent for responding to SNMP requests or actions from the SNMP manager, an SNMP-TRAP application for receiving and processing SNMP notifications (or traps), and support for a number of applications to retrieve information from an SNMP capable device (snmpget, snmpgetnext, snmpwalk), retrieve statistics (snmpstatus) or write configuration on the device (snmpset). The configuration of the SNMP agent and SNMP-TRAP application configuration files (mainly snmpd.conf and snmptrapd.conf) are done using the web interface. Likewise, operations such as enabling or disabling the agent and trap receiver are done using the web interface. Most management operations and monitoring, however, will be done through the SNMP manager. Prerequisites to use this feature include having knowledge of SNMP and having a network management system (NMS) with which to monitor the network. For more information about Net-SNMP or SNMP in general, please refer to the Net-SNMP web site. For information about using SNMP management systems, see the appropriate documentation for your NMS application. SNMP Architecture A typical SNMP implementation includes the following components:  Network management system (NMS) - a combination of hardware devices and software (SNMP manager) used to monitor and administer a network. The manager polls the devices on the network for information about network connectivity, activity, and events.  Managed device - any device on the network that is managed by the NMS.  SNMP agent - the SNMP process that resides on the managed device and communicates with the SNMP manager. It responds to requests for information or actions from the manager and generates SNMP notifications (traps). The agent also controls access to the agent's MIB.  Management Information Base (MIB) - collection of objects that specify the information that the agent provides to the SNMP manager. SNMP Versions The X300 series software supports the following versions of SNMP: SNMPv1, SNMPv2c and SNMPv3/USM.  SNMPv1 - Simple Network Management Protocol, defined in RFC 1157. Security is based on community strings.  SNMPv2c - The community string-based Administrative Framework for SNMPv2. SNMPv2c is defined in RFCs 1901, 1905, and 1906. Security is based on community strings.  SNMPv3/USM - SNMPv3 is defined in RFCs 3413-3415. It provides secure access to devices by authenticating and encrypting packets over the network. SNMPv3 provides message integrity, authentication, and encryption security features. X300 Series IoT Cellular Gateway User Guide 110