Ensure the following packages are installed:

 net-snmp
 
 hponcfg-4.5.0-0.x86_64
 hpsmh-7.5.0-4.x86_64
 hpssacli-2.20-11.0.x86_64
 hpdiags-10.34.1914-1896.x86_64
 hpsum-7.2.1-6.rhel6.x86_64
 hp-snmp-agents-10.20-2789.26.rhel6.x86_64
 hp-ams-2.2.0-1688.44.rhel6.x86_64
 hp-smh-templates-10.2.0-1429.26.noarch
 hp-health-10.20-1723.28.rhel6.x86_64

(versions vary)

Set up /etc/snmp/snmpd.conf configuration as follows:

 # First, map the community name "public" into a "security name"
 
 #       sec.name  source          community
 com2sec localRO         127.0.0.1       public
 com2sec localRW         127.0.0.1       private
 com2sec hpsim_ro       YOUR_IP  public
 
 
 ####
 # Second, map the security name into a group name:
 
 #       groupName      securityModel securityName
 group   group_localRO   v1      localRO
 group   group_localRO   v2c     localRO
 group   group_localRW   v1      localRW
 group   group_localRW   v2c     localRW
 group   group_hpsimro     v1      hpsim_ro
 
 ####
 # Third, create a view for us to let the group have rights to:
 
 # Make at least  snmpwalk -v 1 localhost -c public system fast again.
 #       name           incl/excl     subtree         mask(optional)
 view    all             included        .1
 
 ####
 # Finally, grant the group read-only access to the systemview view.
 
 #       group          context sec.model sec.level prefix read   write  notif
 access  group_localRO   ""      any     noauth  exact   all     none    none
 access  group_localRW   ""      any     noauth  exact   all     all     none
 access  group_hpsimro     ""      any     noauth  exact   all     none    none
 
 ## Extra's
 dlmod cmaX /usr/lib64/libcmaX64.so
 dontLogTCPWrappersConnects 1
 trapcommunity public
 trapsink YOUR_IP  public
 syscontact someone@localhost
 syslocation DATACENTER

Finally run /sbin/hpsnmpconfig and reply y to keep current config