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Reviewing SNMP Statistics

SecureStack B3 Configuration Guide 6-3

Using SNMP Contexts to Access Specific MIBs

Bydefault,whenoperatingfromtheswitchCLI,SecureStackB3devicesallowaccesstoallSNMP

MIBsorcontexts.AcontextisacollectionofMIBobjects,oftenassociatedwithaparticular

physicalorlogicaldevice.

Ifnooptionalcontextparametersareconfiguredforv1andv2“community”namesandv3

“user”

groups,thesegroupsareabletoaccessallSNMPMIBobjectswheninswitchmode.

SpecifyingacontextparameterwhensettingupSNMPusergroupwouldpermitorrestrictthe

group’sswitchmanagementaccesstotheMIB(s)specifiedbythecontext(MIBobjectID)value.

AllSNMPcontextsknownto

thedevicecanbedisplayedusingtheshowsnmpcontextcommand

asdescribedin“showsnmpcontext”onpage 6‐20 .

Example

Thisexamplepermitsthe“powergroup”tomanageallMIBsviaSNMPv3:

B3(su)->set snmp access powergroup security-model usm

Configuration Considerations

CommandsforconfiguringSNMPontheSecureStackB3deviceareindependentduringthe

SNMPsetupprocess.Forinstance,targetparameterscanbespecifiedwhensettingupoptional

notificationfilters—eventhoughtheseparametershavenotyetbeencreatedwiththesetsnmp

targetparamscommand.

Reviewing SNMP Statistics

Purpose

ToreviewSNMPstatistics.

v3 NoAuthNoPriv User name None Uses a user name match for

authentication.

AuthNoPriv MD5 or SHA None Provides authentication based on

the HMAC-MD5 or HMAC-SHA

algorithms.

authPriv MD5 or SHA DES Provides authentication based on

the HMAC-MD5 or HMAC-SHA

algorithms. Provides DES 56-bit

encryption in addition to

authentication based on the CBC-

DES (DES-56) standard.

Table 6-1 SNMP Security Levels (Continued)

Model Security Level Authentication Encryption How It Works

Enterasys SecureStack B3 User Manual

Questions and Answers: