I installed the SLES 15 SP2 version beta of checkmk and i cannot get SNMP v3 to work when trying to use that when configuring connection to one of my hosts.
When i run the test connection i get the following error.
SNMP Error on x.x.x.x: Invalid security level specified after -3l flag: md5
USAGE: snmpbulkwalk [OPTIONS] AGENT [OID]
When i configured it i choose the following options.
Security Level: authentication but no privacy
Authentication protocol: MD5 (MD5-96)
Security name: myuser
Authentication password: ******
The version of snmpbulkwalk is 5.8.dev according to it’s own information, can find it in all of these locations.
/omd/sites/mysite/bin/snmpbulkwalk -V → NET-SNMP version: 5.8.dev
/omd/sites/mysite/version/bin/snmpbulkwalk -V → NET-SNMP version: 5.8.dev
/omd/versions/2.0.0b6.cre/bin/snmpbulkwalk -V → NET-SNMP version: 5.8.dev
/opt/omd/sites/mysite/bin/snmpbulkwalk -V → NET-SNMP version: 5.8.dev
So i guess it’s bundled with checkmk.
I have tried with all of the SHA as authentication protocol to, for SHA-96 i get the same message but for the others(SHA-224 → 512) i get the error “SNMP Error on x.x.x.x: snmpwalk: Unknown user name (Exit-Code: 1)” on my host i can only choose between MD5 or SHA, it’s an Synology NAS.
Tried with security level set to “authentication and encryption” but same errors.
Testing with SNMPv1/2 works, but is not secure and confirms that connection to the host is working.