SNMPv3

SNMP (Simple Network Management Protocol)v3 also applies access control and a new traps mechanism to SNMPv1 and SNMPv2 PDUs. In addition, the USM (User-based Security Model) is defined for SNMPv3 and includes:

• Authentication: Provides data integrity and data origin authentication.
• Privacy: Protects against disclosure of message content. Cipher-Bock-Chaining (CBC) is used for encryption. Either authentication is enabled on an SNMP message, or both authentication and privacy are enabled on an SNMP message. However privacy cannot be enabled without authentication.
• Timeliness: Protects against message delay or message redundancy. The SNMP agent compares incoming message to the message time information.
• Key Management: Defines key generation, key updates, and key use.

The device supports SNMP notification filters based on Object IDs (OID). OIDs are used by the system to manage device features. SNMP v3 supports the following features:

• Security
• Feature Access Control
• Traps

Authentication or Privacy Keys are modified in the SNMPv3 USM.

Use the SNMP page to define SNMP parameters. To display the SNMP page, click System > Advanced Configuration > SNMP in the navigation menu.