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    Kernel: Arp moved from - to

    Scheduled Pinned Locked Moved General pfSense Questions
    26 Posts 10 Posters 19.4k Views
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    • B
      bardelot
      last edited by

      If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.

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      • J
        jasonlitka
        last edited by

        @joako:

        If we disable the sleep proxy "feature" on all the MACs will the errors go away?

        No. The issue is with the TC and AE, not the Macs, and you can't disable that feature on them.

        @bardelot:

        If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.

        I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.

        I can break anything.

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        • B
          bardelot
          last edited by

          @Jason:

          I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.

          Yes it sets the same tunable and also net.link.ether.inet.log_arp_wrong_iface="0" .

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          • T
            tojoski
            last edited by

            This is happening on my Home Server as well.. I have 2 Gigabit Ethernet ports that are teamed to a single connection.

            Feb 5 12:33:22

            kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c4 to 00:e0:81:ba:57:c5 on em0

            Feb 5 12:33:22

            kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c5 to 00:e0:81:ba:57:c4 on em0

            Will this create an issue? It seems to be working ok

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            • C
              cmb
              last edited by

              @tojoski:

              This is happening on my Home Server as well.. I have 2 Gigabit Ethernet ports that are teamed to a single connection.

              Feb 5 12:33:22

              kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c4 to 00:e0:81:ba:57:c5 on em0

              Feb 5 12:33:22

              kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c5 to 00:e0:81:ba:57:c4 on em0

              Will this create an issue? It seems to be working ok

              That's a different scenario, that's what you see when using certain types of NIC bonding. It's fine.

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              • J
                joako
                last edited by

                @Jason:

                @joako:

                If we disable the sleep proxy "feature" on all the MACs will the errors go away?

                No. The issue is with the TC and AE, not the Macs, and you can't disable that feature on them.

                @bardelot:

                If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.

                I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.

                I don't have any Time Capsule or Airport Express. Only Apple TV, 2x MacBook that are here sometimes and probably a few PCs with iTunes installed, if that matters.

                But I still get the errors in the pfSense log.

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                • C
                  cmb
                  last edited by

                  @joako:

                  I don't have any Time Capsule or Airport Express. Only Apple TV, 2x MacBook that are here sometimes and probably a few PCs with iTunes installed, if that matters.

                  But I still get the errors in the pfSense log.

                  You don't need either of those, anything with the sleep proxy does it.

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                  • X
                    xbipin
                    last edited by

                    isnt this arp moved thing related to using wifi repeaters?

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                    • C
                      cmb
                      last edited by

                      @xbipin:

                      isnt this arp moved thing related to using wifi repeaters?

                      Most often, no. It can be. Some of them will translate the source MAC, which if someone roams from one wifi repeater to another will generate this kind of log.

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                      • X
                        xbipin
                        last edited by

                        if so then wouldnt it cause issues with internet drops when a static dhcp lease is set with static arp for a client wifi mac id

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                        • C
                          cmb
                          last edited by

                          @xbipin:

                          if so then wouldnt it cause issues with internet drops when a static dhcp lease is set with static arp for a client wifi mac id

                          It shouldn't. The DHCP requests should be relayed so the DHCP server still gets the client's actual MAC. Otherwise only one client behind the repeater would work on DHCP.

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                          • X
                            xbipin
                            last edited by

                            well i have a problem with the same, i have bridged lan to wifi on pfsense and static mac id/ip pairs set with static arp and deny unknown client ticked, i use a tp link TL-WA850RE wifi range entender and wifi clients get the proper ip but with staic arp wifi clients r not able to surf at all untill i untick that, any solution to this

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