How to block read-write access to the default v3 users only

Suresh kumar <[email protected]>
Newsgroups gmane.network.net-snmp.user
Message-ID <[email protected]>
Hi Dave,
 
We have added around 2 default users in the snmp persist file to enable v3 user creation/cloning through snmpusm utility. The output of the SNMPUSM table is as follows:
 
C:\SnmpUtility>snmpwalk -v 2c -c public 172.16.3.151 1.3.6.1.6.3.15.1.2.2.1
SNMP-USER-BASED-SM-MIB::usmUserSecurityName.".....ê~..X`DP...."."deepti1" = STRING: deepti1
SNMP-USER-BASED-SM-MIB::usmUserSecurityName.".....ê~..X`DP...."."defaultUserMD5" = STRING: defaultUserMD5
SNMP-USER-BASED-SM-MIB::usmUserSecurityName.".....ê~..X`DP...."."defaultUserSHA" = STRING: defaultUserSHA
SNMP-USER-BASED-SM-MIB::usmUserCloneFrom.".....ê~..X`DP...."."deepti1" = OID: SNMPv2-SMI::zeroDotZero
SNMP-USER-BASED-SM-MIB::usmUserCloneFrom.".....ê~..X`DP...."."defaultUserMD5" = OID: SNMPv2-SMI::zeroDotZero
SNMP-USER-BASED-SM-MIB::usmUserCloneFrom.".....ê~..X`DP...."."defaultUserSHA" = OID: SNMPv2-SMI::zeroDotZero
SNMP-USER-BASED-SM-MIB::usmUserAuthProtocol.".....ê~..X`DP...."."deepti1" = OID: SNMP-USER-BASED-SM-MIB::usmHMACMD5AuthProtocol
SNMP-USER-BASED-SM-MIB::usmUserAuthProtocol.".....ê~..X`DP...."."defaultUserMD5" = OID: SNMP-USER-BASED-SM-MIB::usmHMACMD5AuthProtocol
SNMP-USER-BASED-SM-MIB::usmUserAuthProtocol.".....ê~..X`DP...."."defaultUserSHA" = OID: SNMP-USER-BASED-SM-MIB::usmHMACSHAAuthProtocol
SNMP-USER-BASED-SM-MIB::usmUserAuthKeyChange.".....ê~..X`DP...."."deepti1" = ""
SNMP-USER-BASED-SM-MIB::usmUserAuthKeyChange.".....ê~..X`DP...."."defaultUserMD5" = ""
SNMP-USER-BASED-SM-MIB::usmUserAuthKeyChange.".....ê~..X`DP...."."defaultUserSHA" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnAuthKeyChange.".....ê~..X`DP...."."deepti1" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnAuthKeyChange.".....ê~..X`DP...."."defaultUserMD5" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnAuthKeyChange.".....ê~..X`DP...."."defaultUserSHA" = ""
SNMP-USER-BASED-SM-MIB::usmUserPrivProtocol.".....ê~..X`DP...."."deepti1" = OID: SNMP-USER-BASED-SM-MIB::usmNoPrivProtocol
SNMP-USER-BASED-SM-MIB::usmUserPrivProtocol.".....ê~..X`DP...."."defaultUserMD5" = OID: SNMP-USER-BASED-SM-MIB::usmNoPrivProtocol
SNMP-USER-BASED-SM-MIB::usmUserPrivProtocol.".....ê~..X`DP...."."defaultUserSHA" = OID: SNMP-USER-BASED-SM-MIB::usmNoPrivProtocol
SNMP-USER-BASED-SM-MIB::usmUserPrivKeyChange.".....ê~..X`DP...."."deepti1" = ""
SNMP-USER-BASED-SM-MIB::usmUserPrivKeyChange.".....ê~..X`DP...."."defaultUserMD5" = ""
SNMP-USER-BASED-SM-MIB::usmUserPrivKeyChange.".....ê~..X`DP...."."defaultUserSHA" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnPrivKeyChange.".....ê~..X`DP...."."deepti1" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnPrivKeyChange.".....ê~..X`DP...."."defaultUserMD5" = ""
SNMP-USER-BASED-SM-MIB::usmUserOwnPrivKeyChange.".....ê~..X`DP...."."defaultUserSHA" = ""
SNMP-USER-BASED-SM-MIB::usmUserPublic.".....ê~..X`DP...."."deepti1" = ""
SNMP-USER-BASED-SM-MIB::usmUserPublic.".....ê~..X`DP...."."defaultUserMD5" = ""
SNMP-USER-BASED-SM-MIB::usmUserPublic.".....ê~..X`DP...."."defaultUserSHA" = ""
SNMP-USER-BASED-SM-MIB::usmUserStorageType.".....ê~..X`DP...."."deepti1" = INTEGER: nonVolatile(3)
SNMP-USER-BASED-SM-MIB::usmUserStorageType.".....ê~..X`DP...."."defaultUserMD5" = INTEGER: nonVolatile(3)
SNMP-USER-BASED-SM-MIB::usmUserStorageType.".....ê~..X`DP...."."defaultUserSHA" = INTEGER: nonVolatile(3)
SNMP-USER-BASED-SM-MIB::usmUserStatus.".....ê~..X`DP...."."deepti1" = INTEGER: active(1)
SNMP-USER-BASED-SM-MIB::usmUserStatus.".....ê~..X`DP...."."defaultUserMD5" = INTEGER: active(1)
SNMP-USER-BASED-SM-MIB::usmUserStatus.".....ê~..X`DP...."."defaultUserSHA" = INTEGER: active(1)
 
C:\SnmpUtility>
  
What VACM configuration should go into snmpd.conf to block read-write access to the default users ONLY? The user  for example “deepti1” should be accessible but not the users starting with “defaultXXXXXXX”.
 
 
Regards 
~Suresh

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