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    Upload not working on GW_Failover

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      I would test two things:

      Add a firewall rule that routes traffic via the 4G router only. No failover. Test that it also sees the low upload.

      Disable traffic shaping and retest.

      Also check the link between the 4G router and pfSense. Is it linked at the expected speed? Are there and errors on the interface? Is the MTU set to something odd?

      Steve

      GiaNNG 1 Reply Last reply Reply Quote 0
      • GiaNNG
        GiaNN @stephenw10
        last edited by GiaNN

        @stephenw10 Just by doing the first step this is the result:
        fa917640-872d-4c81-9b3c-0c56f7d88713-immagine.png
        i brutally copied the LAN rule and put there the backup gateway while also temporarely disabling the one with GW_failover so it looks like this:
        c2fe1b93-ea7e-4274-aa86-8783723a6546-immagine.png
        of course to get it working right i had to disable IPv6 on my computer ,
        by also disabling the limiter the result is the same
        08ff2c90-cae6-43b1-b251-a493d8ca36fe-immagine.png .
        The backup router it's not directly connected to PFsense, there's a switch in between (that's also my AP, a keenetic AP) and there's no error and the link speed is 1000/1000 with no errors..
        The MTU on my PPPoE is 1402, while on the backup connection is 1500 with MSS of 1460 (which was set automatically by the ZTE)

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          That should be OK.Then the next thing I would test is connecting the 4G router directly to pfSense to eliminate the switch as an issue.

          Throttling to that extent is usually something low level like a bad port or cable.

          GiaNNG 1 Reply Last reply Reply Quote 0
          • GiaNNG
            GiaNN @stephenw10
            last edited by GiaNN

            @stephenw10 ok i tried and it works right:
            eb2211d1-80fe-48d2-9d74-842e2859420d-immagine.png
            by connecting the ZTE directly in the WAN port and giving it the 192.168.8.3 IP address.
            Are you sure it's not something with some firewall rule? Because even trying on a different cable, port and switch it behaves the same
            now i had to give him an OPT1 interface and set it up in static IPv4, while in my config was setup as an IP address in my LAN network like this:
            2c4f14a9-82a7-48c3-98b4-18b21f4fc01a-immagine.png
            because i thought that by doing so i wouldn't need to set up VLANs

            GiaNNG 1 Reply Last reply Reply Quote 0
            • GiaNNG
              GiaNN @GiaNN
              last edited by

              I tried to reconfigure the GW-Failover as i did before, and it still behaves the same, but if i run a speedtest from the firewall it works just right...
              a9d5d61e-e605-42f0-b303-1dfa1075edef-immagine.png
              So i think it's something blocking traffic from LAN but i don't know what can be

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Oh it was in your LAN subnet?

                In that case it's almost certainly an asymmetric routing problem. You can't have two gateways and hosts all the same subnet like that.

                https://docs.netgate.com/pfsense/en/latest/troubleshooting/asymmetric-routing.html

                You need to put the 4G router on a separate interface. That could be a VLAN if you don't have any spare NICs.

                Steve

                GiaNNG 1 Reply Last reply Reply Quote 0
                • GiaNNG
                  GiaNN @stephenw10
                  last edited by GiaNN

                  @stephenw10 unfortunatelly i cannot use VLANs because the ZTE with stock firmware isn't capable of use them.
                  I try to see if the firewall fix works thanks ๐Ÿ‘
                  I don't know if it's this the rule that it's said in the documentation
                  027f5189-8a2f-4842-95a2-2f4cdfd278d0-immagine.png
                  If yes, then the automatic fix doesn't work, i try the manual.

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

                    The modem doesn't need to support VLANs as long as the switch does. The only part that would be VLAN tagged is between the pfSense LAN NIC and the switch.

                    GiaNNG 1 Reply Last reply Reply Quote 0
                    • GiaNNG
                      GiaNN @stephenw10
                      last edited by

                      @stephenw10 yes my keenetic AP supports VLAN tag.
                      I tried to do the manual fix with the LAN and the floating rule and it works
                      0c5dc2fc-959b-4b49-aee8-0d4c40e322fc-immagine.png ,
                      now i only need to try to set up codelQ to limit the speed to 30/30 so i can get decent bufferbloat even with the backup connection.
                      I tried to set up a VLAN this morning but i think i misconfigured something and it wasn't working ๐Ÿค”

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

                        It would be much better to use a separate VLAN interface than using the workaround firewall rule if you can. Without VLANs you are still using asymmetric routing just masking the issue. But I'd almost guaranty it will come back to bite you at some point.

                        Steve

                        GiaNNG 1 Reply Last reply Reply Quote 0
                        • GiaNNG
                          GiaNN @stephenw10
                          last edited by

                          @stephenw10 i know, but i've never used VLANs before and when i tried this morning i think i messed up something, i'll see some documentation/ tutorial on how to use them and i'll try.
                          Are you sure the static route problem won't cause problem even with a VLAN?
                          Thank You.

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

                            Using the VLAN eliminates the asymmetry. All traffic to and from the 4G router then has to go through pfSense via the LAN and VLAN interfaces. Currently traffic can go directly between the 4G router and LAN hosts without going through pfSense.

                            GiaNNG 2 Replies Last reply Reply Quote 0
                            • GiaNNG
                              GiaNN @stephenw10
                              last edited by GiaNN

                              @stephenw10 yes i think tomorrow i'll work on that, because right now my PPPoEv4 isn't letting any traffic through so i think i messed something. Even setting it up as gateway it doesn't work.
                              512bf57f-5bb9-4a0e-8172-b4176c5a7066-immagine.png
                              (my v6 PPPoE comes from the v4)
                              luckily i had a backup and restored it LOL.

                              1 Reply Last reply Reply Quote 0
                              • GiaNNG
                                GiaNN @stephenw10
                                last edited by GiaNN

                                @stephenw10 Hi, i resume this thread to say that i configured correctly the VLAN and now the failover works perfectly also i configured CodelQ with a 30Mbit limiter (BTW Thank You), there's only a little thing that annoys me: my backup Sim changes IP every 4 hours so the firewall sends me 2 messages like these:
                                82712a7e-3f07-44ae-80a5-18ec4ba14742-immagine.png
                                Is there a way to turn off notifications on that gateway and at the same time keeping the monitoring on to detect if it works or not?

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                                • stephenw10S
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  Not within the pfSense GUI. It always notifies about gateway events. And you need the gateway monitoring and actions enabled to make sure failover works correctly.
                                  You could assume it's always up and disable monitoring actions on the 4G router gateway. That might be acceptable.

                                  GiaNNG 1 Reply Last reply Reply Quote 0
                                  • GiaNNG
                                    GiaNN @stephenw10
                                    last edited by

                                    @stephenw10 said in Upload not working on GW_Failover:

                                    Not within the pfSense GUI

                                    is it possible via CLI?
                                    Otherwise i can see if i can do something through the telegram bot or i'll do the always up.

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

                                      Anything is possible with code! ๐Ÿ˜‰

                                      But it not something I'm familiar with. There have been calls for better granularity in notifications. There might be some examples in the forum.

                                      GiaNNG 1 Reply Last reply Reply Quote 1
                                      • GiaNNG
                                        GiaNN @stephenw10
                                        last edited by GiaNN

                                        @stephenw10 well, guess i have to find what's the code PFsense uses to send telegram messages. Thank You
                                        I did it!
                                        I added the string if (str_contains($data["text"],"LTE_Backup_VLAN")) return 0 to the etc/inc/
                                        /notices.inc file and it works, it doesn't send me messages about that gateway but still monitors it, but still checking if everything works.

                                        GiaNNG 1 Reply Last reply Reply Quote 1
                                        • GiaNNG
                                          GiaNN @GiaNN
                                          last edited by

                                          @GiaNN i'll do some other testing because it seems that so It won't send any message besides the test one

                                          1 Reply Last reply Reply Quote 0
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