Hi all,
some information upfront:
- SNMP v1/v2 is working ok (APC UPS units)
- firewall is turned off on management servers
- SNMP v3 is properly configured on target system and can be queried ok using Paessler SNMP Tester
All of our APC UPS units are monitored via SCOM 2019 UR1 using SNMP v1/v2. Now the devices should be reconfigured for v3 to make them more secure. However, SCOM is not able to discover them. As mentioned, the credentials and setup have been confirmed using SNMP Tester from the very same machine as the discovery runs from.
I can see events 120xx in the OpsMgr event log stating that the discovery is running:
Event 12008
Discovery Completed
Discovery type: FullDiscovery
Devices discovered: 0
Windows computers filtered: 0
Devices in pending list: 1
Devices excluded: 0
Duration Total (sec): 23
Duration of Probing (sec): 23
Duration of Processing (sec): 0
Workflow name: discovery09f29983.328e.48b1.9878.bec925cf1530
Instance name: APCv3
Instance ID: {823D56A6-EBA9-72AB-F1EA-1525D0AB636C}
I've used the OpsMgr traces but couldn't see anything in there. Using Microsoft NetMonitor shows that data packets are sent to the APC device, but no response is received:
Using SNMP Test I can see the following communication (taken from the same management server):
I've tried a lot but are currently at a loss. Has anybody run into a similar issue ?
Thanks
Thorsten