I've just built a Windows 2012 server. After installing the SNMP service I saw that the windows firewall already had two rules that allowed SNMP traffic enabled. However, they don't appear to work. I am unable to do an SNMP query on the server.
Only after I added a custom rule that opened port 161 for UDP was I able to SNMP query the windows 2012 server.
Question: Is there a known issue where the Windows default SNMP firewall rules don't work?
Milos lead me down the right path. The default firewall SNMP rule has a scope that limits the remote IP address to Local subnet. My management machine was on a different subnet. I switched it to Any IP address and everything works.
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