Netrics Built-In: Number of Connected Devices

[marcwitasee]

Port the number of connected devices module from Netrics v1 to v2.

The module should identify the subnet, use nmap to update the arp table, and then query the arp table to identify all active devices, which the module should then count to determine the total number of active devices connected to the subnet.

The module should produce the following data fields:

• Number of active devices
• Number of total devices
• Number of devices in last 1 day
• Number of devices in last week