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Security for Servers Performing Network Discovery

 

Updated: May 13, 2016

Applies To: System Center 2012 R2 Operations Manager, System Center 2012 - Operations Manager, System Center 2012 SP1 - Operations Manager

You must ensure the following firewall configuration for network monitoring:

  • All firewalls between the management servers in the resource pool and the network devices need to allow SNMP (UDP) and ICMP bi-directionally, and ports 161 and 162 need to be open bi-directionally. This includes Windows Firewall on the management server itself.

  • If your network devices are using a port other than 161 and 162, you need to open bi-directional UDP traffic on these ports as well.

Important

Note for customers who used EMC Solutions for Microsoft System Center Operations Manager: EMC Smarts included tools to create an isolation layer to prevent denial of service attacks. In System Center 2012 – Operations Manager, you need to protect your network against packet storms by using external tools.