Defining Snmp Parameters; Snmp V1 And V2; Snmp V3 - D-Link DWL-8600AP User Manual

D-Link UWS User Manual

Defining SNMP Parameters

Simple Network Management Protocol (SNMP) provides a method for managing network devices. The device
supports SNMP version 1, SNMP version 2, and SNMP version 3. The Web interfaces supports configuration of
SNMPv1 and v2; SNMPv3 is supported only in the CLI.

SNMP v1 and v2

The SNMP agent maintains a list of variables, which are used to manage the device. The variables are defined
in the Management Information Base (MIB). The MIB presents the variables controlled by the agent. 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 agent are controlled by access strings.

SNMP v3

SNMP v3 also applies access control and a new traps mechanism to SNMPv1 and SNMPv2 PDUs. In addition,
the User Security Model (USM) 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 User Security Model (USM).
Use the SNMP page to define SNMP parameters. To display the SNMP page, click LAN > Administration >
SNMP Manager in the navigation tree.
D-Link
Oct. 2015
Defining SNMP Parameters
Unified Wired and Wireless Access System
Page 125