User's Manual

6. Start the SNMP services (service snmpd restart).

Troubleshooting Receiving SNMP Traps

If you encounter a problem receiving SNMP traps, perform the following steps to troubleshoot and fix the problem:

1. Check for network connectivity between the two systems. You can do this by pinging one system from another

using the ping <IP address> command.

2. Check the SNMP configuration on the managed node. Ensure that you have specified the OpenManage Essential

console IP address and the community string name in the SNMP services of the managed node.

For information on setting SNMP on a Windows system, see Configuring SNMP Services on Windows.

For information on setting SNMP on a Linux system, see Configuring SNMP Services on Linux.

3. Ensure that the SNMP Trap service services are running in the Open Manage Essentials system.

4. Check firewall settings to allow UDP 161, 162 ports.

Troubleshooting Discovery of Windows Server 2008–Based Servers

You also have to allow the server discovery. By default, the option is disabled in Windows Server 2008.

1. Click Start → Control Panel → Network and Internet → Network and Sharing Center → Advanced Sharing Setting.

2. Choose the drop-down arrow for the applicable network profile (Home or Work / Public) and under Network

Discovery

, select Turn on network discovery.

Troubleshooting SNMP Traps for ESX or ESXi Versions 3.5, 4.x, or 5.0

Details: To generate virtual machine and environmental traps from ESX or ESXi 3.5 or 4.

hosts, configure and enable the

embedded SNMP agent. You cannot use the Net-SNMP-based agent to generate these traps, although it can receive

GET transactions and generate other types of traps.

This represents a change in behavior from ESX 3.0.x, in which the configuration file for the Net-SNMP-based agent

controlled the generation of virtual machine traps

Solution: Use the vicfg-snmp command from the Remote CLI or vSphere CLI to enable the SNMP agent and

configure trap destinations. Each time you specify a target with the vicfg-snmp command, the settings you specify

overwrite all previously specified settings. To specify multiple targets, specify them in a single command, separated by

commas.

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