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    pfsense doesn't block port on wan

    Scheduled Pinned Locked Moved General pfSense Questions
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    • emammadovE
      emammadov
      last edited by

      Today I will have a screen recorder and will attach the link here for your review.

      Elvin

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        Just post the rule sets, the contents of the alias, and what you think should be happening. Not going to watch movies.

        Chattanooga, Tennessee, USA
        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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        • emammadovE
          emammadov
          last edited by emammadov

          Firewall / Rules / WAN Destionation is "any"
          0_1540205789571_1.jpg

          Alias
          0_1540205813433_2.jpg

          Firewall / NAT / Port Forward
          0_1540205862192_3.jpg

          Firewall / Rules / WAN
          0_1540205888101_4.jpg

          Port check
          0_1540206038237_5.jpg

          Firewall / Rules / WAN Destionation is "WAN Address"
          0_1540206083476_6.jpg

          0_1540206105305_7.jpg

          Port check
          0_1540206120514_8.jpg

          When Destination in WAN Rules is "any", pfsense blocks, but if Destionation is "WAN Address", pfsense doesn't block.

          Elvin

          GrimsonG 1 Reply Last reply Reply Quote 0
          • GrimsonG
            Grimson Banned @emammadov
            last edited by

            @emammadov said in pfsense doesn't block port on wan:

            When Destination in WAN Rules is "any", pfsense blocks, but if Destionation is "WAN Address", pfsense doesn't block.

            That is, as already explained above, because the NAT port forward has already changed the destination address.

            Btw. opening RDP to the WAN is plain stupid, use a VPN for remote administration.

            emammadovE 1 Reply Last reply Reply Quote 0
            • emammadovE
              emammadov @Grimson
              last edited by emammadov

              @grimson But it has been worked in 2.4.3p1 version.

              Elvin

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                No it didn't - atleast not the way you think it was..

                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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                • emammadovE
                  emammadov
                  last edited by

                  Then, you mean, if I want to block source ip, I have to choose "any" in Destination address and if I allow source ip to my pfsense, then i have to choose "WAN Address" in Destination address, right?

                  Elvin

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by johnpoz

                    Post your rules HOW they are set, and what is not happening.. Lan rules have ZERO to on what happens inbound to the WAN..

                    Your running pfblocker - and you have rules in floating that block traffic.. If so then they could be blocking access to your port forward..

                    Unless you are using a VIP address on your wan, port forward will always be to wan address - which is the default. It will auto create the firewall rule for you by default. If you to limit to a specific alias as source that has zero to do with the dest address and can be be used in your port forward rule.

                    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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                    • emammadovE
                      emammadov
                      last edited by emammadov

                      I have sent you private message. By the way, I am using pfblocker, but Action in pfblocker is "Alias Native". I don't use floating rules.

                      Elvin

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by johnpoz

                        Dude I am not going to watch a freaking movie.. You scrolling around your rules makes it IMPOSSIBLE to see what might or might not be wrong.

                        Its this simple post your port forward, post your wan rules. Post your floating rules. (if nothing in there - still post them).. State what doesn't work.
                        https://www.netgate.com/docs/pfsense/nat/port-forward-troubleshooting.html

                        Just because your port test says not open doesn't mean the port forward didn't work btw. Maybe your client not listening or sending back RST because it doesn't allow rdp from IP other than its local lan, etc.. Run through the troubleshooting guide..

                        Port forwarding to 3389 is this simple.

                        0_1540232262788_portforward.png

                        Once I remove the rule - bam its BLOCKED!! You have to kill any open states that might exist..

                        0_1540232625664_blocked.png

                        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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                        • emammadovE
                          emammadov
                          last edited by

                          You approached. Now create a rule on wan interface, select block in action, add a public ip address you know to the source, choose "wan address " in destination, save and drag it to the above of the rule you created for rdp. You will see that ip addresses in source still can access your server via rdp, but if you select "any" in destination in the rule of wan address, pfsense will block the traffic from that public ip address.

                          Elvin

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                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            Man. NAT HAPPENS BEFORE FIREWALL RULES ARE EVALUATED! WAN ADDRESS WILL NOT MATCH AS A DESTINATION ADDRESS FOR TRAFFIC MATCHING THE PORT FORWARD! THE DESTINATION ADDRESS HAS BEEN TRANSLATED TO THE SERVER ADDRESS!

                            Chattanooga, Tennessee, USA
                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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

                              As Derelict has been trying to tell you for this whole thread. Now create your firewall rule with dest of your IP of your nat, ie 192.168.x.x

                              Put that above your rule that allows it.. And that IP would be blocked.

                              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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