Devices unreachable after device discovery in CiscoWorks LMS 3.2
I am having trouble with the device discovery using CiscoWorks LMS 3.2. I have 129/304 devices that are currently unreachable. I believe the issue is with the SNMP v3 encryption we are obligated to start using. We are using the SHA-1, and AES 128 options. All the devices that are still SNMP v2 enabled are able to be reached.
I have installed an SNMP tester program to assist me troubleshoot. With the help of this tester, I have found that when I enable SNMP v2, the cisco swith will answer SNMP queries. When I enable SNMP v3 auth no priv, the device will answer SNMP queries. However, when I enable SNMP v3 with auth priv, the device stops answering SNMP queries.
I have tried using different passwords for the two users. I have completely removed all groups and users and then re-entered them.
I have checked the ACL's and made sure they are not limiting traffic.
Just FYI, I have installed a second network management program, and I am having the same issue. The devices with SNMP v3 auth priv enabled will not respond to SNMP queries.
Any suggestions? I can upload our SNMP configuration if that may help troubleshoot.
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