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DHCP leases are not being removed after lease expiration. Why?

John Blue

Q1: I have a 24 hour lease time set and as you can see in the screenshot several leases have expired (anything < 06/26/18) but the expired lease continues to be listed.

Any thoughts as to why this happening?

 

Q2: How does one get a complete listing of leases with reservations on the same page?



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  • +1

    Good questions, John...

    1. I've always assumed that it's 7 days before an entry is erased.  This corresponds to the time frame that the UTM counts the number of IPs that are protected.

    2. Copy and paste to a text file is the only way I know.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0

    Answer Q1: If the lease is expired it’s only part of the solution.

    From time to time, dhcpd removes obsolete information. I didn’t know which event triggers this, but give it some time. I’m sure it’s not the expire time of the lease.

    Maybe someone got more information.

    Best

    Alex

    -

  • +1 in reply to BAlfson

    Bib's answer makes srense.  It keeos track of the entry to remember that the MAC address counts against tbe license count.  

  • 0 in reply to DouglasFoster

    DouglasFoster said:
    It keeos track of the entry to remember that the MAC address counts against tbe license count.

    Okay gotcha .. was wondering what the protected status means.  License count via MAC makes sense.

    Will keep a closer eye on them to see if/when they drop off.

    Thanks!

    John

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