This SNMP tool is so good, I'd buy an iPad for it alone. NetScanner is easier to use than many Windows and Mac SNMP query tools. Simply enter your SNMP credentials and scan the subnet. If you have multiple sets of credentials, NetScanner will try them all when you trigger a query. If you've made the move to SNMP 3, NetScanner will display a massive amount of information about your local network devices, and it will add devices outside your local network by IP, range, or subnet. Even without a full set of credentials, NetScanner will find all kinds of devices on your network and give you basic info such as manufacturer and device type.