Chapter 12: Configuring Snmp - Linksys SFE1000P Administration Manual

Configuring SNMP
The Simple Network Management Protocol (SNMP) provides a method for managing network
devices. The device
supports the following SNMP versions:
SNMP v1 and v2
SNMP agents maintain a list of variables that 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 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) is 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
Either authentication is enabled on an SNMP message, or both authentication
encryption.
and privacy are enabled on a SNMP message. However privacy cannot be enabled without
authentication.
•
Timeliness — Protects against message delay or message redundancy. The SNMP agent compares the
incoming message to the message time information.
•
Key Management — Defines key generation, key updates, and key use.
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
The device generates copy traps.
The SNMP section contains the following sections:
• Configuring SNMP Security
• Defining Trap Management

Chapter 12: Configuring SNMP

SFE1000P Gigabit Ethernet Switch Administration Guide
The device supports SNMP
Chapter
12
85