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    Unable to open ports

    Scheduled Pinned Locked Moved Firewalling
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    • D Offline
      Dennisunified
      last edited by

      Hi all,

      Im confused right now! I have a routed subnet to my PFsense box. Where the Wan of the modem = 66.x.x.105. My Pfsense WAN = 66.x.x.109. When connected to the Lan of my pfsense i can access internet all fine.

      The problem is i wanna open only the ports 80 and 443 at my Wan side of my PFsense. When i set a rule at wan to allow ANY. I test the port 80 on the site t1shopper.com. Port 80 is then open on 66.x.x.109. All the other ports are still blocked. When i set the allow any rule the block all the ports are still blocked inculed the port 80..

      How can it be i can not open al the ports?

      Thanks.

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      • marcellocM Offline
        marcelloc
        last edited by

        open all ports to where?

        pfsense has only port 80 and 443 open if you have enabled https on gui.

        It's not recommended in any way to leave pfsense gui open to everyone.

        If you want to redirect ports to internal servers, then go to firewall -> nat -> port forwarding.

        Treinamentos de Elite: http://sys-squad.com

        Help a community developer! ;D

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        • D Offline
          Dennisunified
          last edited by

          Oke thanks i whas already looking into the port forwarding!

          But now i have put a rule on WAN to allow ANY source, any destionation, any protocol. But i cant ping to my WAN ip..
          Even when i set a rule for ICMP i still cant ping the .109 addres..

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          • marcellocM Offline
            marcelloc
            last edited by

            Check wan interface netmask and subnet, also check default gateway, bogon network option on wan and gateway rule you applied on.

            Treinamentos de Elite: http://sys-squad.com

            Help a community developer! ;D

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            • D Offline
              Dennisunified
              last edited by

              Mask for WAN /29 wich is correct. Gateway for WAN rule is set to x.x.x.105 (Modem LAN). WAN interface aslo gateway x.x.x.105..

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              • D Offline
                Dennisunified
                last edited by

                I can PING again. Im now strugling with the NAT rules. I have set a rule to allow port 80 to my laptop.
                If i check with canyouseeme.org it still says the port is blocked. Here is the nat config:

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                • marcellocM Offline
                  marcelloc
                  last edited by

                  Change pfsense gui port to other then 80 to prevent conflicts.

                  Are you using 1.2.3 pfsense version?

                  Treinamentos de Elite: http://sys-squad.com

                  Help a community developer! ;D

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                  • D Offline
                    Dennisunified
                    last edited by

                    Changed it to port 28 in this case. Didnt work. Yes im using 1.2.3!

                    I have the NAT config and the rule.

                    The pfsense comes after my speedtouch modem. When i ping 77.x.x.105 (Modem WAN) Port 80 is also blocked. Do i maybe need to set port 80 open in the modem as wel?..

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                    • D Offline
                      Dennisunified
                      last edited by

                      But when is set a rule to allow any on the wan interface i can see that port 80 is open! So that cant be the problem.
                      When i add the nat config i have no rules on the wan interface. I setup my NAT has like the pic above. It auto adds the rule.

                      So when i delete the any rule on wan and at the NAT rule it is blocked. Must be something with my config i think..

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                      • marcellocM Offline
                        marcelloc
                        last edited by

                        Configure pfsense as a dmz server on your modem, this way all ports will be forwarded to pfsense

                        Treinamentos de Elite: http://sys-squad.com

                        Help a community developer! ;D

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                        • D Offline
                          Dennisunified
                          last edited by

                          Hmm oke. But i have an Server 2003 thats connected to the Routed subnet of my Modem.

                          Funny thing is when i set 2 rules at my WAN. 1 for allow everyting and one for my NAT rule to allow only port 80 then i still cant acces port 80. When i delete only the port 80 rule on my WAN side of pfsense. Then i can acces port 80 again. Seems like the Nat rule overrules the allow any rule? And that that rule with my NAT config for port 80 isnt working correctly…

                          Thanks for helping!

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                          • D Offline
                            Dennisunified
                            last edited by

                            Got it!!!

                            Well. appearantly this is the problem:

                            External port range. Only from is configured. this way it does NOT work only when you also (in this case https) set to options to HTTPS for "from" and "to" the forwarding works.

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                            • johnpozJ Online
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              When you click the from, it auto fills the to with the same port.  Why would you of changed the to to other?  Your not forwarding a RANGE, your forwarding a PORT.  So if you changed to to other and then did not put in the other port – yeah it would not really be a valid forward, it would be from 443 to ? (what port)..

                              So yeah it would make sense that would be broken

                              portforwardfromto.png
                              portforwardfromto.png_thumb

                              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 25.07.1 | Lab VMs 2.8, 25.07.1

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                              • D Offline
                                Dennisunified
                                last edited by

                                Thing whas. When i clicked From to lets say HTTP then it auto fills indeed. But when i edit the rule it whas on other again. Changed it back to HTTP at the "To". And it worked.

                                But now i have a problem the other way around  ???
                                I cant block any ports on my LAN side. I put this rule on the LAN side:

                                When i do a port scan with Advanced Port Scanner i see that port 80, 53 and 21 are still open. And netsend results are this:

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                                • marcellocM Offline
                                  marcelloc
                                  last edited by

                                  What rules you have applied before this rule?

                                  Treinamentos de Elite: http://sys-squad.com

                                  Help a community developer! ;D

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                                  • johnpozJ Online
                                    johnpoz LAYER 8 Global Moderator
                                    last edited by

                                    Well I can tell you I have edit many a rule, and have never seen it flip the to other??  So not sure what your talking about there.

                                    As to not being able to block traffic from your lan??  Did you clear you states on pfsense after you made this rule - which is on the lan section of the firewall?

                                    At a loss to what showing netstat -an from a client has to do with what ports would be open on pfsense or what ports it would allow through its firewall?

                                    Rules would be processed in order, so if you have a rule above this rule that says allow any, which is the default rules created for the lan.. Then no this rule would never be hit.

                                    Post up a screenshot of your lan section showing this rule, and then clear your states, etc..  Keep in mind you don't want to lock yourself out of accessing the pfsense gui or ssh, etc.  See the top rule on my lan side.

                                    lanrules.png
                                    lanrules.png_thumb

                                    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 25.07.1 | Lab VMs 2.8, 25.07.1

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                                    • D Offline
                                      Dennisunified
                                      last edited by

                                      Pass. Allow any! For the lan side. When i do that i have internet. When i block i have no connection and cant ping like it supose to work. But when i check the ports they apear open!..

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                                      • johnpozJ Online
                                        johnpoz LAYER 8 Global Moderator
                                        last edited by

                                        What do you mean when you check the ports??  What you showed was a "netstat -an" from some windows client - not from pfsense..

                                        What would a firewall rule on pfsense have to do with ports listening on a windows client?

                                        "When i block i have no connection and cant ping like it supose to work."

                                        What do you think should happen when you block ALL protocols??  What do you think should ping??

                                        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 25.07.1 | Lab VMs 2.8, 25.07.1

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                                        • C Offline
                                          cmb
                                          last edited by

                                          @Dennisunified:

                                          But when i check the ports they apear open!..

                                          In netstat in Windows like you showed above? Yeah, they sure will be, no network firewall is going to your Windows system and turn off its services. netstat just shows what your Windows host is listening on, your firewall has 0 control over that.

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                                          • D Offline
                                            Dennisunified
                                            last edited by

                                            Thanks for the reactions. Indeed i discoverd that netstat does not show ports open on my PFsense… I do have managed to open ports with NAT now.

                                            The problem whas that i had to edit the NAT rule and reconfigure the "To" from "other" back to the port i wanted to open! After i edit a rule only then does the rule work!..

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