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Monitoring the DHCP Pool

  • 1.  Monitoring the DHCP Pool

    Posted 06-17-2021 05:26 PM
    We exhausted a DHCP pool and had a resulting outage from it.

    Has anybody written powershell to retrieve the pool to enable monitoring?  Is this even possible?

    Thanks in advance,

    -Rob

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    Robert Borowicz
    Zenoss Engineer
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  • 2.  RE: Monitoring the DHCP Pool

    Posted 06-18-2021 01:58 PM

    Hey, Rob!

    I did a spot of Googling and managed to find this:
    https://www.techrepublic.com/article/solutionbase-monitoring-dhcp-server-performance-statistics-in-windows-server-2003/

    It specifically calls out Win2k3, but I suspect the counters haven't changed much since then.  It should be easy enough to run a typeperf on the DHCP server to see what counters are exposed by more modern versions of Windows Server.

    Based on the article, some promising counters to threshold against might be:

    DHCP Server\Nacks/sec
    DHCP Server\Conflict Check Queue Length
    DHCP Server\Declines/sec

    Naturally, you'll want to confirm that those counters are still available 18 years later before you start building thresholds.

    I hope this helps!



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    Michael J. Rogers
    Senior Instructor - Zenoss
    Austin TX
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