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    Hostnames not showing in ARP Table

    Scheduled Pinned Locked Moved General pfSense Questions
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    • ARAMP1A
      ARAMP1
      last edited by

      I've assigned static IP addresses to most of the things on my home network.  How do I get the hostnames to display in the ARP table?  I've done a search here and come up short.  All the devices that are dynamically assigned are showing.

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      • JKnottJ
        JKnott
        last edited by

        Arp tables don't show host names.  They only show IP to MAC address mappings.

        PfSense running on Qotom mini PC
        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
        UniFi AC-Lite access point

        I haven't lost my mind. It's around here...somewhere...

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        • ARAMP1A
          ARAMP1
          last edited by

          Then why is there a column for them?  And why does it show them for the automatically assigned IP addresses?

          ![ARP Table.jpg](/public/imported_attachments/1/ARP Table.jpg)
          ![ARP Table.jpg_thumb](/public/imported_attachments/1/ARP Table.jpg_thumb)

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          • JKnottJ
            JKnott
            last edited by

            That's an arp table maintained withing pfsense.  It's not the arp cache as used by freeBSD.  Go to a command prompt and enter the command "arp -a", which will show the contents of the arp cache.  If a host name is there, it's because something did a host lookup on the IP address.  An arp cache is used when trying to reach an IP address on the local net, by providing the MAC address for it.  A host name has nothing to do with that function.

            PfSense running on Qotom mini PC
            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
            UniFi AC-Lite access point

            I haven't lost my mind. It's around here...somewhere...

            1 Reply Last reply Reply Quote 0
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