SNMP agent software must be installed and enabled on any devices for which you want to receive SNMP information. Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 all provide an SNMP agent in their default installations. Network systems manufacturers provide an SNMP agent for their routers, hubs, and other network boxes.
For more information, see About the SNMP operations and Enabling SNMP on Windows devices.