You may include routers, printers, network attached storage (NAS), UPS systems, and other managed network devices on your map. Simply select SNMP and enter one or more SNMP community strings (or passwords) for the devices, separated by spaces or commas. Enter up to ten community strings and use the lock icon 
to hide the strings. If you do not know the community string, try "public", a common default access string.
Maps drawn without access to SNMP-based routers will not show connectivity between network segments.