In my environment we were using one IP range for an example (192.168.1.1-5). Then we removed this range of network from our entire production environment 6 months ago. But last week when we check the logs in firewall we getting an request to this IP's from solarwinds. Source is solarwinds application server and destination is this unused IP's. There is nothing related to this IP's in solarwinds nodes when I check the manage node.
How often are you seeing this request? Is it at a regular cadence like a polling interval? That could help track it down, or do you have a scheduled discovery that still contains the list of IPs or that subnet?
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