ISC DHCP monitoring with Netdata

Monitors the leases database to show all active leases for given pools.

Requirements

• dhcpd leases file MUST BE readable by Netdata
• pools MUST BE in CIDR format
• python-ipaddress package is needed in Python2

It produces:

1. Pools utilization Aggregate chart for all pools.

   • utilization in percent

2. Total leases

   • leases (overall number of leases for all pools)

3. Active leases for every pools

   • leases (number of active leases in pool)

Configuration

Edit the python.d/isc_dhcpd.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory, if different

sudo ./edit-config python.d/isc_dhcpd.conf

Sample:

local:

leases_path: '/var/lib/dhcp/dhcpd.leases'

pools:

office: '192.168.2.0/24' # name(dimension): pool in CIDR format

wifi: '192.168.3.10-192.168.3.20' # name(dimension): pool in IP Range format

192.168.4.0/24: '192.168.4.0/24' # name(dimension): pool in CIDR format

wifi-guest: '192.168.5.0/24 192.168.6.10-192.168.6.20' # name(dimension): pool in CIDR + IP Range format

The module will not work If no configuration is given.

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