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    pfSense stops passing ARP across the bridge after some amount of time

    L2/Switching/VLANs
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    • 3
      321liftoff
      last edited by

      I have the following configuration:

      netgate.jpg

      After some amount of time, devices are not able to obtain the MAC address of the gateway. When I perform a normal reboot of the Netgate 5100, ARP is successful again and devices are able to get the MAC address.

      What steps can I take to help determine what is causing this problem?

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      • 3
        321liftoff @321liftoff
        last edited by

        UPDATE: Discovered that the upstream Cisco Switch connected to the Netgate 5100 had Cisco Port Security enabled, which was configured to only allow two MAC addresses for the port.

        Disabling that resolved the issue.

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