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    4G LTE Modem Routing Questions

    Scheduled Pinned Locked Moved General pfSense Questions
    8 Posts 3 Posters 864 Views
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    • S
      simpic
      last edited by

      Hello,

      I have spun up an old pfSense box running 2.4.2 in a new location.

      I am using a Netgear AC800S Aircard on Optus 4g in Australia. Connected to the pfSense machine via UBS.

      pfSense is on 192.168.1.2

      All is well in pfSense recognising the USB device and giving it an interface at ue0. I have created a new assignment called MOBILE on this interface with IPv4 & 6 as DHCP.

      In System > Routing changed the newly created GW's to default for IPv4 & IPv6.

      The IP for MOBILE_DHCP is showing as 10.201.69.1 I'm not sure what IP this is from the network carrier.

      On the dashboard I am showing as green for the MOBILE interface and an IP of 10.201.69.94.

      All of this seems to indicate that the AC800S via USB is working and the IP Passthrough working correctly.

      But no internet access from a machine connected to the LAN side.

      In the logs I am getting the following...

      arpresolve: can't allocate llinfo for 10.201.69.1 on ue0

      I'm sure this is a routing / firewall issue with pfSense. Really stuck as I'm at the far end of my knowledge.

      Can anyone suggest a course of action?

      K 1 Reply Last reply Reply Quote 0
      • K
        Konstanti @simpic
        last edited by Konstanti

        @simpic
        Hey
        https://www.freebsd.org/cgi/man.cgi?query=arp&apropos=0&sektion=4&manpath=FreeBSD+11.2-RELEASE&arch=default&format=html

        arpresolve: can't allocate llinfo for %d.%d.%d.%d The route for the ref-
        erenced host points to a device upon which ARP is required, but ARP was
        unable to allocate a routing table entry in which to store the host's MAC
        address. This usually points to a misconfigured routing table. It can
        also occur if the kernel cannot allocate memory.

        1 Reply Last reply Reply Quote 0
        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          What subnet mask are you being given on ue0 when it's connected? Check status > interfaces.

          Steve

          S 1 Reply Last reply Reply Quote 0
          • S
            simpic @stephenw10
            last edited by

            @stephenw10 got this...

            c018e346-5a4b-4086-9d06-a5dfbc827844-image.png

            1 Reply Last reply Reply Quote 0
            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Ok, there you go. The gateway is outside the WAN subnet, which is /32, so it cannot ARP for it.

              Try editing the gateway and checking 'Use non-local gateway'.

              Steve

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              • S
                simpic
                last edited by

                Great, thanks, that worked. Would not have thought of that for my life!

                GW up and online now. pfSense can connect to the internet as I have just upgraded to 2.4.4

                No browser traffic though. Could be a DNS issue. I will check that.

                d608c164-3300-4ee9-b4e4-bf22d77fa0d2-image.png

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Nice!

                  Must have some DNS since the upgrade happened. Maybe you are policy routing all traffic from the clients so they can't hit pfSense for DNS?

                  Steve

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                  • S
                    simpic
                    last edited by

                    Works now.

                    I applied the MOBILE GW to the DNS servers in System / General and checked the Disable DNS Forwarder tickbox.

                    All working now.

                    Thank you for your help.

                    1 Reply Last reply Reply Quote 0
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