Monitor and graph (Grafana) DHCP Scope utilization.

[MatthewDeSantos]

Is anyone using the API or another method to pull dhcp scope utilization? I'd like to pull these stats via API and graph utilization using Grafana?

[JimmyHolland · Accepted solution]

Hi @MatthewDeSantos, you can grab the lease information via API:

https://{{host}}/api/?key={{key}}&type=op&cmd=<show><dhcp><server><lease><interface>{{interface-name}}</interface></lease></server></dhcp></show>

 The response will look something like this:

<response status="success">
    <result>
        <interface name="ethernet1/2" id="17" allocated="11" total="51">
            <entry name="192.168.0.50">
                <ip>192.168.0.50</ip>
                <mac>00:00:00:00:00:00</mac>
                <state>reserved</state>
            </entry>
            <entry name="192.168.0.121">
                <ip>192.168.0.121</ip>
                <mac>00:00:00:00:00:00</mac>
                <state>reserved</state>
            </entry>
            <entry name="192.168.0.115">
            .
            .
            .

Where you would take allocated=11 and total=51, to derive the utilisation. In this case 22%.

Hope this helps!

[MatthewDeSantos]

Thanks for the reply, would you happen to know if this could be translated into a grafana query/graph?