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    PFSense rewriting all traffic?

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @dgarner
      last edited by

      @dgarner said in PFSense rewriting all traffic?:

      I don't know guidelines on photos

      screenshots are always better - please post screenshots of your portforward and wan rules. Also let us know if you have any rules in floating.

      An intelligent man is sometimes forced to be drunk to spend time with his fools
      If you get confused: Listen to the Music Play
      Please don't Chat/PM me for help, unless mod related
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        dgarner @johnpoz
        last edited by

        @johnpoz Sounds perfect, sir.

        cbd30671-e1f2-4b93-8152-380bbc8cd3ef-image.png

        This is an example, as there are roughly 60 ports open at the moment.

        f8fe55eb-794b-4023-8fc8-af0ad7e096f3-image.png

        Rules
        920137e7-16d9-4229-80c4-8a351d400c4b-image.png

        And here is one thing in particular I am attempting to work out ...

        DHCP
        1c32fefc-885b-4842-84a6-cb68e349a85f-image.png

        e8c24ee8-afa6-4d7e-8f5d-5af8f104876d-image.png

        4bf4aa94-fcbd-4631-9524-6b3e189a95d7-image.png

        I think this is perhaps a good beginning?

        johnpozJ 1 Reply Last reply Reply Quote 0
        • johnpozJ
          johnpoz LAYER 8 Global Moderator @dgarner
          last edited by johnpoz

          @dgarner what are you wanting to do here

          what.jpg

          That makes no sense to me..

          edit: these make no sense either

          either.jpg

          Why would you forward something that is hitting your pfsense wan address to pfsense lan address? Are you trying to get haproxy to reverse proxy something to inside your network?

          if your running nginx as reverse proxy somewhere behind pfsense, the forward would go to that specific IP..

          An intelligent man is sometimes forced to be drunk to spend time with his fools
          If you get confused: Listen to the Music Play
          Please don't Chat/PM me for help, unless mod related
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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            @dgarner said in PFSense rewriting all traffic?:

            Redirect target IP: LAN Address

            Yup that's almost certainly incorrect.

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            • D
              dgarner @johnpoz
              last edited by

              @johnpoz The whitelisting IP was an attempt to get connectivity to my phone to the network in a rush before I had time to properly install Twingate or a VPN.
              This will be deleted now.
              Thank you for making me notice this again. :D

              Yes, as I believe I said above, that's exactly the objective.
              I am using Nginx by F5 (Not NPM or whatever with the red gem logo) along with Apache as a reverse proxy and am attempting to allow clients to connect on the outside via "web ports."

              80 = duh
              443 = duh
              8080 = Ports on which Apache AND Nginx are running same server, Nginx (80) and Apache (8080) should be serving web content to clients, which almost all of my servers have some sort of web content, even if it's something such as an administrative "CPanel" type web interface.

              I know I have attempted to not use LAN Address before, but I will change back to specific host and see if that resolves it now that things are more configure that previously.

              Thank you for the for confirmation @stephenw10 -- it genuinely means a lot from both of you guys, thank you. :D

              johnpozJ 1 Reply Last reply Reply Quote 0
              • johnpozJ
                johnpoz LAYER 8 Global Moderator @dgarner
                last edited by johnpoz

                @dgarner what do you think these do exactly?

                wrong.jpg

                Those are not doing anything..

                How many more like that do you have? You mention something about 60 ports?

                Not sure why your running a reverse proxy inside your network, why would you not just run haproxy right on pfsense? Much cleaner way to do it imho.

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 24.11 | Lab VMs 2.8, 24.11

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                • D
                  dgarner @johnpoz
                  last edited by

                  @johnpoz said in PFSense rewriting all traffic?:

                  @dgarner what do you think these do exactly?

                  wrong.jpg

                  Those are not doing anything..

                  How many more like that do you have? You mention something about 60 ports?

                  Not sure why your running a reverse proxy inside your network, why would you not just run haproxy right on pfsense? Much cleaner way to do it imho.

                  Because I have been running a reverse proxy much longer than I have been using PFSense.
                  I will look into HA but as NGinx is already set up, it's at least preferable to have it working momentarily until I can make time to switch to HA.

                  Those ports were not originally "LAN/LAN" and "WAN/WAN" --those were spaghetti against the wall trying to make this work. Haha.

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                  • D
                    dgarner @johnpoz
                    last edited by

                    @johnpoz As an example, most of my Port Fowarding/Rules look like this,
                    668269f2-5636-4697-b1be-09c4da62a6ce-image.png

                    11343e3e-de3d-491d-b9af-1074063d0083-image.png

                    johnpozJ 1 Reply Last reply Reply Quote 0
                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator @dgarner
                      last edited by johnpoz

                      @dgarner those look normal - not sure why any reason to hide rfc1918 space? Are those public IPs you obfuscated? Are you routing public IP space to behind pfsense? If so there would be no need for any port forwards.

                      If they are rfc1918, as long as that .10 address isn't pfsense address, then those should work unless you had blocking in floating, or in wan that blocked?

                      When troubleshooting port forwards.. Normally couple of minutes running through the troubleshooting guide will find the source of the problem right away.

                      https://docs.netgate.com/pfsense/en/latest/troubleshooting/nat-port-forwards.html

                      spaghetti against the wall trying to make this work. Haha.

                      Never a good idea ;) just makes a mess.. I taste my spaghetti to know if its the proper al dente hahah

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                      • D
                        dgarner @johnpoz
                        last edited by

                        @johnpoz No, I'm just hyper paranoid. :)

                        So, in recap, I have shifted NAT IP from LAN Address to Individual host with port and rules in place to support it, NAT reflection is on Pure NAT and DNS Split is enabled and set up along with DHCP entries to match -- and all machines use PFSense as primary DNS nameserver, including the machine in question.

                        Woohoo -- sorta. All of these have led to finally resolving on LAN side -- ... still not WAN from my phone, though? Hmm.

                        At least we're getting closer.

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator @dgarner
                          last edited by

                          @dgarner said in PFSense rewriting all traffic?:

                          still not WAN from my phone, though? Hmm.

                          First step for me would be to actually validate traffic hits your wan from outside via sniff, can you see me . org is good place to test tcp traffic from outside.

                          Then sniff on the lan side interface while doing the test traffic, does pfsense send it on? That would point to maybe a firewall issue on where your forwarding too? Pure nat would nat the source IP, which wouldn't be a local IP. With split dns the IP would be local so maybe the host your sending too allows its own network, but not remote networks, etc.

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                          • D
                            dgarner
                            last edited by

                            @johnpoz Great point. Thank you for the reminder.

                            Ports still remain closed to the outside world.

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                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator @dgarner
                              last edited by

                              @dgarner I would suggest we look at your forward that is not working, and your wan rules for this port.. If tcp send some traffic via say can you see me.. You should be able to track down the problem in couple of minutes..

                              An intelligent man is sometimes forced to be drunk to spend time with his fools
                              If you get confused: Listen to the Music Play
                              Please don't Chat/PM me for help, unless mod related
                              SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                dgarner @johnpoz
                                last edited by

                                @johnpoz So, this may be curious?

                                So, there is definitely something listening on all ports previously mentioned, not sure why it says closed and not filtered so much, but will build to it.

                                96527855-5b5b-4a94-9688-af1c576dac28-image.png

                                I've showed you P/F, but here is rule for 80.

                                f7c50b0b-67bd-4374-9194-d80cc7b399be-image.png

                                Destination is blank and not able to be edited - this is perhaps the main thing I could think of, but why would I not be able to edit it, if that is required to point to a specific host.. I guess another question would be, why it's not done automatically, so much.. but for our purposes ..

                                Is this perhaps why and how do I edit it, if it's locked out?

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                                • johnpozJ
                                  johnpoz LAYER 8 Global Moderator @dgarner
                                  last edited by johnpoz

                                  @dgarner this is wrong that is for sure

                                  wrongagain.jpg

                                  That sure isn't the IP address of this caesar box is it? Your port forward should be to that IP on your lan, some rfc1918 address... Or you proxy your running, it sure isn't going to be pfsense lan IP.

                                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                                  If you get confused: Listen to the Music Play
                                  Please don't Chat/PM me for help, unless mod related
                                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                  • D
                                    dgarner @johnpoz
                                    last edited by

                                    @johnpoz omg, gahh..
                                    These are auto-generated rule matches for NAT P/F ... Why are they not matching exactly or editable?
                                    I guess the job for tonight is to delete all these rules and add them manually with correct IP ... :$

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                                    • johnpozJ
                                      johnpoz LAYER 8 Global Moderator @dgarner
                                      last edited by

                                      @dgarner in your port forward set the destination, and then yes the firewall rule would be auto created.. If your port forward is set to lan address, then yeah that is what the the firewall rule would be.. Pfsense tries to keep you from shooting yourself in the foot in a lot of ways.. But in the long run its still just going to do what you tell it to do.

                                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                                      If you get confused: Listen to the Music Play
                                      Please don't Chat/PM me for help, unless mod related
                                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                      • D
                                        dgarner @johnpoz
                                        last edited by

                                        @johnpoz I mean, this makes sense and I am thankful it attempted to.
                                        Perhaps this was created during the initial rule set up and does not automatically update.

                                        So, if I may ask you one or two more questions I hope.. lol.
                                        If I delete the associated rule and ask it to create a new rule, will that one reflect the IP?

                                        Instead of having to manually create all new rules for everything, perhaps I could delete the rules and have them regenerate.

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                                        • johnpozJ
                                          johnpoz LAYER 8 Global Moderator @dgarner
                                          last edited by johnpoz

                                          @dgarner if your firewall rule is associated with the port forward, then it would update, or be removed if you deleted the port forward. But if the firewall is not associated then no it wouldn't update nor would it be removed on removal of the port forward.

                                          By default pfsense would auto create an associated rule for you when you create the forward. But when you start throwing spaghetti about - who knows that happened.

                                          edit: here I created a forward to my lan address.. Then I corrected it just in the port forward, as you can see the wan firewall rule was updated all on its own

                                          test.jpg

                                          Then when I delete the forward, the wan firewall rule goes away as well.

                                          This should be default when you create a port forward

                                          default.jpg

                                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                                          If you get confused: Listen to the Music Play
                                          Please don't Chat/PM me for help, unless mod related
                                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                          • D
                                            dgarner @johnpoz
                                            last edited by

                                            @johnpoz Strange ... I autogenerated new rules, which fixed that issue.
                                            Still nod dice. Hmm.

                                            a719ed72-e91a-4efd-a2b3-7eb31bd98b08-image.png

                                            24df8861-385d-4fb8-8cfe-965fc4f7dba1-image.png

                                            8465abfc-25a1-44d6-b72d-676a2f3c3a3d-image.png

                                            Port closed, site unreachable.

                                            johnpozJ 1 Reply Last reply Reply Quote 0
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