| ICMP and SNMP Firewall Rule Diagnostic | The following diagnostic determines if the firewall rules to enable ICMP/SNMP exist. | System.NetworkManagement.CheckNMFirewallRules.Diagnostic | System.NetworkManagement.NetworkDiscoveryServer | System.NetworkManagement.NetworkDevicesInPendingManagement | True | 300 | Error | Maintenance | true | Internal |
| Windows SNMP Trap Service Diagnostic | The following diagnostic determines if the Windows SNMP service is running. Operations Manager cannot receive SNMP traps while this service is running. | System.NetworkManagement.CheckSNMPTrapService.Diagnostic | Microsoft.SystemCenter.HealthService | System.NetworkManagement.SNMPTrapPortAlreadyInUse.Monitor | True | 300 | Error | Maintenance | true | Internal |