Creating a CommunityFor SNMPv1 and SNMPv2, create a community to enable the community-based security in DellNetworking OS.The management station generates requests to either retrieve or alter the value of a management objectand is called the SNMP manager. A network element that processes SNMP requests is called an SNMPagent. 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; SNMPagents 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 thefollowing message. You must specify whether members of the community may only retrieve values(read), or retrieve and alter values (read-write).22:31:23: %STKUNIT0-P:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMPWARM_START.To choose a name for the community you create, use the following command.• Choose a name for the community.CONFIGURATION modesnmp-server community name {ro | rw}Example of Creating an SNMP CommunityTo view your SNMP configuration, use the show running-config snmp command from EXEC Privilegemode.Dell(conf)#snmp-server community my-snmp-community ro22:31:23: %STKUNIT0-P:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMPWARM_START.Dell#show running-config snmp!snmp-server community mycommunity roSetting Up User-Based Security (SNMPv3)When setting up SNMPv3, you can set users up with one of the following three types of configuration forSNMP read/write operations.Users are typically associated to an SNMP group with permissions provided, such as OID view.• noauth — no password or privacy. Select this option to set up a user with no password or privacyprivileges. This setting is the basic configuration. Users must have a group and profile that do notrequire password privileges.• auth — password privileges. Select this option to set up a user with password authentication.• priv — password and privacy privileges. Select this option to set up a user with password and privacyprivileges.To set up user-based security (SNMPv3), use the following commands.• Configure the user with view privileges only (no password or privacy privileges).CONFIGURATION modesnmp-server user name group-name 3 noauth• Configure an SNMP group with view privileges only (no password or privacy privileges).CONFIGURATION modeSimple Network Management Protocol (SNMP) 841
