What is the purpose of SNMP_DISABLE_AUTHORIZATION ?

[teixemf]

Hi!
I am wondering what is the purpose of the env var SNMP_DISABLE_AUTHORIZATION .
I am currently sending SNMPv3 informs to snmptrapd with a custom PRIV user.
I can successfully receive the informs as long as SNMP_DISABLE_AUTHORIZATION is set to the default value (yes).
When I change it to "no", snmtrapd stops processing the informs.

Here is as an example the env vars I have set:
SNMP_ENGINEID=8000000001234567890ABC
SNMP_USER=NMS
SNMP_AUTH=1234567890AbCdEfG
SNMP_PRIV=GfEdCbA0987654321
SNMP_AUTH_PROTO=SHA
SNMP_PRIV_PROTO=AES-128
SNMP_SECURITY_LEVEL=priv
SNMP_DISABLE_AUTHORIZATION=yes