Reference Guide

192 | Simple Network Management Protocol (SNMP)
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Setting up SNMP
FTOS supports SNMP version 1 and version 2 which are community-based security models. The primary
difference between the two versions is that version 2 supports two additional protocol operations (informs
operation and
snmpgetbulk query) and one additional object (counter64 object).
Creating a Community
For SNMPv1 and SNMPv2, you must create a community to enable the community-based security in
FTOS. The management station generates requests to either retrieve or alter the value of a management
object and is called the
SNMP manager. A network element that processes SNMP requests is called an
SNMP agent. An SNMP community is a group of SNMP agents and managers that are allowed to interact.
Communities are necessary to secure communication between SNMP managers and agents; SNMP agents
do not respond to requests from management stations that are not part of the community.
FTOS enables SNMP automatically when you create an SNMP community and displays Message 1. You
must specify whether members of the community may retrieve values in read-only mode. Read-write
access is not supported.
To create an SNMP community:
View your SNMP configuration, using the command
show running-config snmp from EXEC Privilege
mode, as shown in Figure 16-1.
Figure 16-1. Creating an SNMP Community
Read Managed Object Values
You may only retrieve (read) managed object values if your management station is a member of the same
community as the SNMP agent.
Task Command Command Mode
Choose a name for the community. snmp-server community name ro CONFIGURATION
Message 1 SNMP Enabled
22:31:23: %STKUNIT0-M:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP WARM_START.
FTOS(conf)#snmp-server community my-snmp-community ro
22:31:23: %STKUNIT0-M:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP WARM_START.
FTOS#do show running-config snmp
!
snmp-server community mycommunity ro
FTOS#