only when users are not previously configured. This log message is provided to assist your systemsecurity auditing procedures.Configuration Task List for SNMPConfiguring SNMP version 1 or version 2 requires a single step.NOTE: The configurations in this chapter use a UNIX environment with net-snmp version 5.4. Thisenvironment is only one of many RFC-compliant SNMP utilities you can use to manage your DellNetworking system using SNMP. Also, these configurations use SNMP version 2c.• Creating a CommunityConfiguring SNMP version 3 requires configuring SNMP users in one of three methods. Refer to SettingUp User-Based Security (SNMPv3).Related Configuration Tasks• Managing Overload on Startup• Reading Managed Object Values• Writing Managed Object Values• Subscribing to Managed Object Value Updates using SNMP• Copying Configuration Files via SNMP• Manage VLANs Using SNMP• Enabling and Disabling a Port using SNMP• Fetch Dynamic MAC Entries using SNMP• Deriving Interface Indices• Monitor Port-channelsImportant Points to Remember• Typically, 5-second timeout and 3-second retry values on an SNMP server are sufficient for both LANand WAN applications. If you experience a timeout with these values, increase the timeout value togreater than 3 seconds, and increase the retry value to greater than 2 seconds on your SNMP server.• User ACLs override group ACLs.Set up SNMPAs previously stated, Dell Networking OS supports SNMP version 1 and version 2 that are community-based security models.The primary difference between the two versions is that version 2 supports two additional protocoloperations (informs operation and snmpgetbulk query) and one additional object (counter64 object).SNMP version 3 (SNMPv3) is a user-based security model that provides password authentication for usersecurity and encryption for data security and privacy. Three sets of configurations are available for SNMPread/write operations: no password or privacy, password privileges, password and privacy privileges.You can configure a maximum of 16 users even if they are in different groups.840 Simple Network Management Protocol (SNMP)
