Reference Guide

Simple Network Management Protocol (SNMP) | 827
Setting up SNMP
As previously stated, Dell networking OS 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).
SNMP version 3 (SNMPv3) is a user-based security model that provides password authentication for user
security and encryption for data security and privacy. Three sets of configurations are available for SNMP
read/write operations: no password or privacy, password privileges, password and privacy privileges
A maximum of 16 users can be configured even if they are in different groups.
Creating a Community
For SNMPv1 and SNMPv2, you must create a community to enable the community-based security in Dell
networking OS. 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.
Dell networking OS enables SNMP automatically when you create an SNMP community and displays
Message 1. You must specify whether members of the community may only retrieve values (read), or
retrieve and alter values (read-write).
To create an SNMP community:
View your SNMP configuration, using the command
show running-config snmp from EXEC Privilege
mode, as shown in Figure 47-1.
Figure 47-1. Creating an SNMP Community
Task Command Command Mode
Choose a name for the community. snmp-server community name {ro | rw} CONFIGURATION
Message 1 SNMP Enabled
22:31:23: %STKUNIT0-M:CP:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP
WARM_START.
Dell(conf)#snmp-server community my-snmp-community ro
22:31:23: %STKUNIT0-M:CP:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP WARM_START.
Dell#show running-config snmp
!
snmp-server community mycommunity ro