Automatic Network Discovery
Automatic Network Discovery
For SNMP based networks PRTG Traffic Grapher offers the option to scan your network for available SNMP devices and to automatically create SNMP based sensors for all devices found.
To start this process select Automatic Network Discovery from the Extras menu.
Click on Next to select the IP range:
Select the First IP Address and Last IP Address to scan for the test and – if you do not use the default values – edit the SNMP settings Community String and Port.
The Enable Highspeed Scan setting should be fine for most networks. If PRTG fails to discover one or more devices when scanning your network try to disable this setting (scanning will take about 5-10 times longer).
As soon as you click Next the scan is started, it will take about 3-10 seconds per IP address:
You can see the progress in the scan log. After the scan has finished click Next and you will get a list of devices and possible sensors found in your network.
Note that ports which are not connected and sensors that are already configured in PRTG will not be checked by default.
Choose the sensors you want to create by checking/unchecking the check boxes and click on Finish.
In the sensor list you will find a new top-level group with the title Auto Detection (at the bottom of the list) with one sub-group for each device that contains all the sensors for this device:
