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DHCP shows device offline but I can ping it

Scheduled Pinned Locked Moved DHCP and DNS
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  • S
    SteveITS Galactic Empire
    last edited by Feb 3, 2021, 3:21 PM

    This seems like it should be obvious but what does Offline mean in the Status/DHCP Leases page?

    We're trying to troubleshoot a tenant connection that is using a static DHCP mapping based on the MAC address. DHCP logs show the IP was assigned. I can ping it. But twice today that I've noticed the DHCP Leases status page shows it offline, but other times it is shown as online. The ARP table doesn't list the IP or MAC address but that is expected as my traffic to that router would go through a switch and not get to pfSense.

    Does that page only see it "online" if there is traffic from it to the pfSense? I just pinged it from the pfSense and it shows online now and is in the ARP table.

    Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
    When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
    Upvote 👍 helpful posts!

    G 1 Reply Last reply Feb 3, 2021, 4:01 PM Reply Quote 0
    • G
      Gertjan @SteveITS
      last edited by Feb 3, 2021, 4:01 PM

      @teamits said in DHCP shows device offline but I can ping it:

      Does that page only see it "online" if there is traffic from it to the pfSense?

      You mentioned the answer in your question 😊 👍
      The "offline" just means that there is no trace of the IP in the Diagnostics > ARP Table.

      Ping it, " WOL" it, make it awake and aware, and you'll see the ARP table contains the IP => the device will show as "online".

      No "help me" PM's please. Use the forum, the community will thank you.
      Edit : and where are the logs ??

      S 1 Reply Last reply Feb 3, 2021, 4:03 PM Reply Quote 0
      • S
        SteveITS Galactic Empire @Gertjan
        last edited by Feb 3, 2021, 4:03 PM

        OK thanks just needed confirmation. :)

        Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
        When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
        Upvote 👍 helpful posts!

        1 Reply Last reply Reply Quote 0
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