Linksys SRW2016 - Manual (Page 82)

72 Chapter 5: Using the Web-based Utility for Configuration
SNMP Tab
WebView Switches
SNMP Tab
Simple Network Management Protocol (SNMP) provides a method for managing network devices. The switches
supports the following SNMP versions:
• SNMP version 1
• SNMP version 2
• SNMP version 3
SNMP v1 and v2
The SNMP agents maintains a list of variables, which are used to manage the switches. 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 agents 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,
User Security Model (USM) are defined for SNMPv3 and includes:
• Authentication. Provides data integrity and data origin authentication.
• Privacy. Protects against disclosure message content. Cipher Bock-Chaining (CBC) is used for encryption.
Either authentication is enabled on a SNMP message, or both authentication and privacy are enabled on a
SNMP message. Privacy cannot be enabled, however, 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 switches support SNMP notification filters based on Object IDs (OID). OIDs are used by the system to manage
switch features. SNMP v3 supports the following features:
• Security
• Feature Access Control
NOTE: SNMP v3 is not supported on the SRW2016
or SRW2024 Switches and will not appear in the
utilities for these products.