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    NAT (Port Forwarding) and web failover

    Scheduled Pinned Locked Moved NAT
    27 Posts 4 Posters 9.3k Views
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    • marcellocM
      marcelloc
      last edited by

      What status you have on loadbalance for the web-slave?

      status -> loadbalancer

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

      Help a community developer! ;D

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      • S
        skipper
        last edited by

        the status is enable and accessible (green 100%) that's why i don't understand.

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        • S
          skipper
          last edited by

          i found out that when an https request is going to web-slave through the vpn, then the web-slave is trying to send the package through the wan interface and not back to vpn. can i somehow force this traffic to pass through the vpn connection?

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          • marcellocM
            marcelloc
            last edited by

            @skipper:

            i found out that when an https request is going to web-slave through the vpn, then the web-slave is trying to send the package through the wan interface and not back to vpn. can i somehow force this traffic to pass through the vpn connection?

            You will need an outbound nat to "masquerade" client internet ip. This way the server can return the package through vpn instead of forwarding it to it's wan

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

            Help a community developer! ;D

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            • S
              skipper
              last edited by

              thnx for your help marcelloc!!
              how must the outbound nat look?
              these are the vpn IPs
              pfsense1 ip : 10.4.0.1
              pfsense2 ip : 10.4.0.2

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              • marcellocM
                marcelloc
                last edited by

                It's on firewall -> nat -> outbound

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

                Help a community developer! ;D

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                • S
                  skipper
                  last edited by

                  i created an outbound nat but the traffic is still going to the wan interface and not back to vpn
                  here is my outbound nat rule

                  Interface webslavelan
                  Source      192.168.129.0/24
                  Source Port   443
                  Destination   10.4.0.0/30
                  Destination Port *
                  NAT Address *
                  NAT Port   443
                  Static Port   NO

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                  • marcellocM
                    marcelloc
                    last edited by

                    @skipper:

                    i created an outbound nat but the traffic is still going to the wan interface and not back to vpn
                    here is my outbound nat rule

                    Interface webslavelan
                    Source       192.168.129.0/24
                    Source Port    443
                    Destination    10.4.0.0/30
                    Destination Port *
                    NAT Address *
                    NAT Port    443
                    Static Port    NO

                    change source to any.
                    does webslavelan is the outgoing interface to reach 10.4.0.0/30?

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

                    Help a community developer! ;D

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                    • S
                      skipper
                      last edited by

                      thnx for your help man!
                      this is my network a bit more detailed,
                      i have tried to put different interfaces and IPs on the outbound configuration but the traffic goes still to my wan :/
                      now i put vpnsitetosite as interface and source any but it doesn't work.
                      what should the destination be? is there something else that i need to define? create a new gateway or something like that?

                      net.jpg
                      net.jpg_thumb

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                      • marcellocM
                        marcelloc
                        last edited by

                        Try to go to console and do some package capture to find what interface pfsense is using to send traffic to remote host.

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

                        Help a community developer! ;D

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                        • S
                          skipper
                          last edited by

                          the request is going from vpnsitetosite–>webslavelan-->webslave
                          and the reply is going from webslave-->webslavelan-->wan
                          i need to send it back to vpnsitetosite interface

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                          • marcellocM
                            marcelloc
                            last edited by

                            Can you select vpn interface on outgoing nat rule?

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

                            Help a community developer! ;D

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                            • S
                              skipper
                              last edited by

                              i can select OpenVPN but not the specific vpn interface.
                              do i need to create a virtual IP, a rule to 1:1, or something additional?
                              i have tried many combinations for the outbound rule but the http replies are keep going to the wan interface :/

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                              • marcellocM
                                marcelloc
                                last edited by

                                What you get when you select openvpn as interface on outbound nat for this server?

                                If you can't do it with load balance, consider using a reverse proxy like (varnish,squid-reverse,apache+mod_security)

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

                                Help a community developer! ;D

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                                • S
                                  skipper
                                  last edited by

                                  i get the same, nothing changes if i select openvpn as interface.
                                  i will try to find another solution as it seems that what i am trying to do it's not possible with load balance.
                                  thnx for your help!

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