Thwack Post Title: NPM 10.0.0 SP1 Bug: Alert Action To Send SNMP Traps Actually BROADCASTS On Local Network
Many thanks to Mariusz from the Support team for helping me pin this down. I wanted to share with all since this might be happening under your nose!
We have Orion NPM 10.0.0 SP1 and have the "Alert me when a node goes down" alert configured with two trigger actions:
- Log Alert to NetPerfMon Event Log
- Send SNMP Trap to two hosts (Microsoft Operations Manager and Orion NCM).
With help from Mariusz and Wireshark, we found that the Orion NPM poller was actually broadcasting SNMP traps to 255.255.255.255! It seems that the workaround is to create a different trigger action for each SNMP Trap destination. In other words, we changed our trigger actions to this:
- Log Alert to NetPerfMon Event Log
- Send SNMP Trap to Microsoft Operations Manage
- Send SNMP Trap to Orion NCM
If you use this feature of Orion, I recommend you check your settings and maybe run Wireshark on your poller to be sure you're not spewing broadcasts out to your entire server subnet.
Mariusz is filing this as a bug, and I'm not sure what all versions of Orion are impacted. Feel free to add your comments to this thread.
http://thwack.com/forums/48/orion-family/9/network-performance-monitor/28193/npm-1000-sp1-bug-alert-acti/#118327