Specifications

Basic System Administration
98 VMware, Inc.
Configuring SNMP Management Client Software
TouseyourSNMPmanagementsoftwarewiththeESXServer3orESXServer3iagents,
takethestepsneededtoaccomplishthefollowing:
 Inyourmanagementsoftware,specifytheESXServermachineasanSNMP‐based
manageddevice.
 Setupappropriatecommunitynamesinthemanagementsoftware.Thesemust
correspondtothevaluessetinthemasterSNMPagent’sconfigurationfile,for
example,rocommunity,trapcommunity,andtrapsink.
 LoadtheESXServerMIBsintothemanagementsoftwaresoyoucanviewthe
symbolicnamesfortheESXServervariables.YoucanfindtheMIBfileson
ESX ServerSW,inthe/usr/lib/vmware/snmp/mibsdirectory.
Configuring SNMP Security for ESX Server 3
TheESXServerSNMPpackagetakesthesimplestapproachtoSNMPsecurityinthe
defaultconfiguration.Itsetsupasinglecommunitywithread‐onlyaccess.Thisis
denotedbytherocommunityconfigurationparameterintheconfigurationfileforthe
snmpd daemon,snmpd.conf.Youshouldchangethisfile.
Otherenhancementsto
theSNMPsecuritymechanismallowanadministratortosetup
amoreelaboratepermissionsscheme.Seethesnmpd.conf(5)manpagefordetails.
SNMP Diagnostics
YoucanusethefollowingtoolstodiagnoseproblemswithSNMPconfiguration.
 Typevicfg-snmp -Tattheremotecommand‐lineinterfacetoprompttheESX
Server3iagenttosendatesttrap.
 TheSNMPv2-MIBfileprovidesanumberofcounterstoaidindebuggingSNMP
problems.Table 5‐11listssomeofthesediagnosticcounters.
Table 5-11. Diagnostic Counters from SNMPv2-MIB
Variable ID Mapping Description
snmpInPkts snmp 1 Thetotalnumberofmessagesdeliveredto
theSNMPentityfromthetransportservice.
snmpInBadVersions snmp 3 ThetotalnumberofSNMPmessagesthat
weredeliveredtotheSNMPentityand
wereforanunsupportedSNMPversion.