Hi,
I'm trying to restrict access to MIBs using SNMPv3 and VACM.
First of all I have created an administrator user with snmp daemon
turned off using the command

sudo net-snmp-create-v3-user -A auth_password -X priv_password -a MD5
-x DES administrator

It creates the user successfully and I have an entry "rwuser" in
/usr/local/share/snmp/snmpd.conf
and an entry "usmUser" in /etc/net-snmp/snmpd.conf (/etc/net-snmp has
been specificated as
persistent configuration directory at configure time).

After I have turned on the snmp daemon and tried to create a group
with the command

sudo snmpvacm -v 3 -u administrator -l authNoPriv -a MD5 -A
auth_password localhost createSec2Group 3 administrator adminGroup

This command fails with output:

Error in packet.
Reason: inconsistentValue (The set value is illegal or unsupported in some way)
Failed object: 
SNMP-VIEW-BASED-ACM-MIB::vacmSecurityToGroupStatus.3."administrator"

Sniffing some packets I've seen that snmpvacm is trying to set the
variable SNMP-VIEW-BASED-ACM-MIB::vacmSecurityToGroupStatus.3."administrator"
to value 4 (previous value is 1 = Active)
but the snmpd server considers this value (4) inconsistent and gets the error.

If I try

sudo snmpvacm -v 3 -u administrator -l authNoPriv -a MD5 -A
auth_password localhost createSec2Group 3 adminGroup administrator

snmpvacm doesn't fail but this is not what I want (the user adminGroup
does not exist).

Any help?

Regards Giuseppe.

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