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DGS-3100 Series Gigabit Stackable Managed Switch User Manual
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Configuring SNMP
Simple Network Management Protocol (SNMP) provides a method for managing network devices. The device supports the
following SNMP versions:
• SNMP version 1
• SNMP version 2c
• SNMP version 3
SNMP v1 and v2c
The SNMP agents maintain a list of variables used to manage the device. The variables are defined in the Management
Information Base (MIB). The SNMP agent defines the MIB specification format, as well as the format used to access the
information over the network. Access rights to the SNMP agents are controlled by access strings.
SNMP v3
SNMP v3 applies access control and a new traps mechanism. In addition, User Security Model (USM) parameters are
defined for SNMPv3, including:
Parameters Description
Authentication
Provides data integrity and data origin authentication.
Privacy
Prevents message content disclosure. Cipher Block-Chaining (CBC) is used for encryption.
Either authentication is enabled on a SNMP message, or both authentication and privacy are
enabled on an SNMP message. However, privacy cannot be enabled without authentication.
Key Management
Defines key generation, key updates, and key use.
The device supports SNMP notification filters based on Object IDs (OIDs). OIDs are used by the system to manage device
features. SNMP v3 supports the following features:
• Security
• Feature Access Control
• Traps