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    pfsense doesn't block port on wan

    General pfSense Questions
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    • emammadovE
      emammadov
      last edited by

      I can show you exactly when I give teamviewer id to you. Do you have a teamviewer program in your computer?

      Elvin

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        I just explained it all.

        No, I won't teamviewer into your computer.

        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

          What I mean is: I have an Alias that should be blocked by pfsense.

          In WAN rules, Alias is in the top of page, above all the rules. I have chosen to block all requests from this Alias. Destination address is "WAN Address". It doesn't block requests from this Alias. But if I choose "Any" in Destination, then it blocks all requests from this Alias. That's what I mean. Because I have used this rule in 2.4.3p1 and it used to work. Please do the same steps in your pfsense and you will see what I mean.

          Elvin

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          • DerelictD
            Derelict LAYER 8 Netgate
            last edited by

            I explained exactly what is going on based on what you have posted.

            I cannot explain to you that which is not shown. You are posting rules/screen shots for one thing, getting a complete explanation, then saying something else isn't working.

            Does the table in Diagnostics > Tables contain the IP addresses you expect to be blocked?

            Please show everything about that alias and the rules in question.

            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

              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 2.7.2, 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 2.7.2, 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 2.7.2, 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 2.7.2, 24.11

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