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    openvpn client not connecting

    Scheduled Pinned Locked Moved OpenVPN
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    • GertjanG
      Gertjan @Cleetus Antony
      last edited by

      @Cleetus-Antony said in openvpn client not connecting:

      I wonder how this IPs r showing as origin.

      You are aware that every Internet device can access any IP ?
      You can go wherever you want, so can everybody else.
      What you are seeing are 'random' IP addresses that 'try' to connect to you WAN IP, protocol UDP, port 1194. They 'test' your OpenVPN.
      This looks scary if you've never seen this before, but don't worry, OpenVPN was created to handle this situation. You are probably using certificates as an access control mechanism :

      e840124b-2b44-42dd-b4c1-ffa080ce3c8b-image.png

      you can see these certificates - you saw them in the ovpn file you've exported to your client - and it's impossible to guess these.

      You Office PC is a PC that uses the Internet to go to you OpenVPN? right ?
      This Office PC should not be part of your pfSense LAN network.

      Normally, to test, you install this app on your phone (an iOS also exist) and you use your phone with the Wifi de activated. Use the data of your phone provider to connect to your ISP WAN IP.
      You know it works, as connections are already reaching your OpenVPN server ^^

      No "help me" PM's please. Use the forum, the community will thank you.
      Edit : and where are the logs ??

      C 2 Replies Last reply Reply Quote 0
      • C
        Cleetus Antony @Gertjan
        last edited by

        @Gertjan

        Ya I thought that "may" be some attack attempts. BUT:-
        I am in UAE now and my home is in India where pfsense is located.
        My home IP is 59.88.4.40
        but openvpn client from my office pc is trying to connect to 117.196.173.241:1194.

        I am using dyndns at my pfsense end. As per my research this ip 117.196.173.241 doesnt belong to my dyndns.

        This makes me kind of total confusions.

        I tried both User auth as well as TLS modes.

        Attached the latest openvpn log from pfsense. Plz chk if u can see anything interesting ?

        openvpnLog 18.11.24.txt

        3567444a-e2e0-453a-8c68-dc35f01165a3-image.png

        785c0a00-4146-4095-abea-434c33b955f6-image.png

        bf99a584-4d0f-4e04-b06c-2596e5f1fca8-image.png

        GertjanG 1 Reply Last reply Reply Quote 0
        • GertjanG
          Gertjan @Cleetus Antony
          last edited by Gertjan

          @Cleetus-Antony said in openvpn client not connecting:

          My home IP is 59.88.4.xx
          but openvpn client from my office pc is trying to connect to 117.196.173.241:1194.

          That makes no sense.
          If you know your that the IP you need to contact is is 59.88.4.xx then why would you (have it) use 117.196.a.b ?
          DynDNS issues ? Who cares. Handle that one later.
          For now, set up the IP like :

          85effcbf-0c0c-4d1a-b1d7-df75613ed0d9-image.png

          export the Client OpenVPN config.
          Import the config in the client.

          @Cleetus-Antony said in openvpn client not connecting:

          I tried both User auth as well as TLS modes.

          Starting testing the user auth possibilities when you are able to reach 59.88.4.xx

          No "help me" PM's please. Use the forum, the community will thank you.
          Edit : and where are the logs ??

          1 Reply Last reply Reply Quote 0
          • C
            Cleetus Antony @Gertjan
            last edited by

            @Gertjan
            Sorry that I couldn't respond to u after the last talk.

            I managed connect the opnvpn from my work place to home pfsense server.
            But I my open vpn adaptor is not getting gateway and dns.

            Please revert.

            05bcc778-cfd9-42a1-8aa8-48c9aa1825be-image.png

            GertjanG 1 Reply Last reply Reply Quote 0
            • GertjanG
              Gertjan @Cleetus Antony
              last edited by

              @Cleetus-Antony

              254600e5-f4bc-466a-a88e-024ada7e3bb6-image.png

              Really, TAP ?

              No "help me" PM's please. Use the forum, the community will thank you.
              Edit : and where are the logs ??

              C 2 Replies Last reply Reply Quote 0
              • C
                Cleetus Antony @Gertjan
                last edited by

                @Gertjan

                Yes sir, Thats what the adaptor is getting my tunnel network IP from 192.168.2.0 series when connected.

                1 Reply Last reply Reply Quote 0
                • C
                  Cleetus Antony @Gertjan
                  last edited by Cleetus Antony

                  @Gertjan
                  I set the Device Mode in server configuration as "tun" only no "tap" . So I shudnt get TAP adaptor in my connected clients rt ?

                  Is that matters for not getting GW and DNS in client ?

                  GertjanG 1 Reply Last reply Reply Quote 0
                  • GertjanG
                    Gertjan @Cleetus Antony
                    last edited by

                    @Cleetus-Antony
                    When you set up a OpenVPN server using TUN, you have to create a corresponding (redo) your OpenVPN client side accordingly.
                    Actually, every time you change something on the server side, you have to redo your client config also.

                    Normally, you export the openvon config on pfSense to an opvn file, and you import this file on your OpenVPN client.

                    No "help me" PM's please. Use the forum, the community will thank you.
                    Edit : and where are the logs ??

                    C 1 Reply Last reply Reply Quote 0
                    • C
                      Cleetus Antony @Gertjan
                      last edited by Cleetus Antony

                      @Gertjan
                      Thank u. But my server conf was "tun" only since starting not tap. Hav any clue why I am not getting GW and DNS ?

                      GertjanG 1 Reply Last reply Reply Quote 0
                      • GertjanG
                        Gertjan @Cleetus Antony
                        last edited by

                        @Cleetus-Antony said in openvpn client not connecting:

                        But my server conf was "tun" only since starting not tap

                        Your client side ( ? ) as showing a tap connection.

                        No "help me" PM's please. Use the forum, the community will thank you.
                        Edit : and where are the logs ??

                        C 1 Reply Last reply Reply Quote 0
                        • C
                          Cleetus Antony @Gertjan
                          last edited by

                          @Gertjan
                          Yes sir, Thats what bit confusing. Please let me know if u need to see any particular configuration in server, I can show the screenshot. My "Device mode" conf is tun only.

                          V 1 Reply Last reply Reply Quote 0
                          • V
                            viragomann @Cleetus Antony
                            last edited by

                            @Cleetus-Antony
                            Did you even provide a DNS server in the OpenVPN server settings?

                            A Default Gateway is not meant to be set on the VPN interface, as far as I know. There is no need for it.

                            What's your actual issue now?

                            C 1 Reply Last reply Reply Quote 0
                            • C
                              Cleetus Antony @viragomann
                              last edited by Cleetus Antony

                              @viragomann
                              I assigned dns in server settings and client getting the same.
                              But issue is client is not getting internet.
                              I even added redirect-gateway def1 option also.

                              My conf file is as below:-

                              dev tun
                              persist-tun
                              persist-key
                              data-ciphers AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305:AES-256-CBC
                              data-ciphers-fallback AES-256-CBC
                              auth SHA256
                              tls-client
                              client
                              resolv-retry infinite
                              remote pallickal.duckdns.org 1194 udp4
                              setenv opt block-outside-dns
                              nobind
                              auth-user-pass
                              remote-cert-tls server
                              explicit-exit-notify
                              redirect-gateway def1

                              <ca>
                              -----BEGIN CERTIFICATE-----
                              MIIECDCCAvCgAwIBAgIIe52lR6T8wlowDQYJKoZIhvcNAQELBQAwXDETMBEGA1UE
                              AxQKT3BlbnZwbl9DQTELMAkGA1UEBhMCSU4xDzANBgNVBAgTBktlcmFsYTESMBAG
                              A1UEBxMJQWxhcHB1emhhMRMwEQYDVQQKEwpwYWxsaWNrYW5zMB4XDTI0MDYyNDA3
                              MTU1NFoXDTM0MDYyMjA3MTU1NFowXDETMBEGA1UEAxQKT3BlbnZwbl9DQTELMAkG
                              A1UEBhMCSU4xDzANBgNVBAgTBktlcmFsYTESMBAGA1UEBxMJQWxhcHB1emhhMRMw
                              EQYDVQQKEwpwYWxsaWNrYW5zMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC
                              AQEA+LbeHSX8vVylxArGi/TI5EZaoRqznasUZxXs2OdPSGtQ8k5sNS8IoRejyt+Y
                              FV1ujYY4gjSmnsZhRxcSAWVG1/amGUrK5HOGkAEaUcXQB5+T6KaLp4c3RRBwrBSD
                              IKmO9fuuKlTLPxt4m87TF9SejbQI47uVX82e8ff8jxxh6u8EC3WzhF25Gx7MbkjL
                              KuHrRohehyq97Nl+rWmLafDSrCyEktoemb6rSp1+sabHwiwEuZzDC4q5Td4gA/Jr
                              o/08jbHqiO1MC3FdLcLxslgL2tyc5XmNmE9GfBq1dYw9QodTqND29r0EaYTnpURc
                              HskHBftm7Ux2iIiVTspvmTGjGQIDAQABo4HNMIHKMB0GA1UdDgQWBBTf7XNYM7C8
                              ip1ZRfHinjhO6Ysi3zCBjQYDVR0jBIGFMIGCgBTf7XNYM7C8ip1ZRfHinjhO6Ysi
                              36FgpF4wXDETMBEGA1UEAxQKT3BlbnZwbl9DQTELMAkGA1UEBhMCSU4xDzANBgNV
                              BAgTBktlcmFsYTESMBAGA1UEBxMJQWxhcHB1emhhMRMwEQYDVQQKEwpwYWxsaWNr
                              YW5zggh7naVHpPzCWjAMBgNVHRMEBTADAQH/MAsGA1UdDwQEAwIBBjANBgkqhkiG
                              9w0BAQsFAAOCAQEA8TRPbTAteXxGFWs3Q/Z/29mcTFwp/GHaPDmQzaBaMQEqNAcG
                              0tRQm9kLmn+55oJ/liCj+RUBcdLMWvQvKEi/DiL1iBeujW5PpkyWMVV+QjWCYcKh
                              vu5TEmkgdzyTcYaftxg9861np/mldyVJclg7FUOOgtxjlMhpYBEbzaESJoUHZMbN
                              tMdY1EdIRsMLNt2yqyIV/3wQ+9EQ2MvbFx3gj/OSNPXMkkF6fX8PId/iSi3MFx2L
                              bskELM7t/R0vpuZXRLKuvbrGZJL315mhzliRbXWJIhzezJfTZIXfTsk+s1wOHgWw
                              RxBR4Y9rsipH9zEhPk/fe9WK5DaMqxF6amjqgg==
                              -----END CERTIFICATE-----
                              </ca>
                              setenv CLIENT_CERT 0
                              key-direction 1
                              <tls-auth>

                              2048 bit OpenVPN static key

                              -----BEGIN OpenVPN Static key V1-----
                              88af59de8bc63d86f0d59f72994afbb3
                              1e5ff375edc4d460ff8c145afe254e03
                              f4e7b72a52a747485e9216f2cb04cd43
                              aa5139fbd0ce8f8e77c95be0f7344fce
                              46b31198e56896a328e1c55e69378be0
                              b8bf11a080bed79983d1863572f80943
                              ea1e24ed83278a2348c1fd0da536ccc5
                              f94ed219141ad36e87ef38261f5d42f1
                              b9a1514390e3a00f148f83980a5072e2
                              553a139ad06241ba7a8378f470dc3802
                              8dcb4f3fad3d15161af9487d3459e2d8
                              a96ae3048add2843d79935eb8c7e162b
                              3a2fd0d8b6e403f23561a926cdc0c94c
                              7fd01f4abff0c83c6edf9d7c032e5d0b
                              c36a0982f90181980d98eeb1109bbd23
                              dd69c02432a400e67a6ea971f80dfe20
                              -----END OpenVPN Static key V1-----
                              </tls-auth>

                              V 1 Reply Last reply Reply Quote 0
                              • V
                                viragomann @Cleetus Antony
                                last edited by

                                @Cleetus-Antony
                                You should not post your client certificate and TLS key in a public forum.

                                And the server config would be more interesting than the client.

                                In the server settings you have "Redirect gateway" checked, I guess?
                                And again the question: Did you even state a DNS server?

                                C 2 Replies Last reply Reply Quote 0
                                • C
                                  Cleetus Antony @viragomann
                                  last edited by

                                  @viragomann
                                  my mistake on certificate
                                  As I stated, I have stated dns in server settings and I am getting tunnel IP, subnet, DNS IPs and no GW in my TAP adaptor in client PC. and consequently NO internet. I can access home network.

                                  V 1 Reply Last reply Reply Quote 0
                                  • V
                                    viragomann @Cleetus Antony
                                    last edited by

                                    @Cleetus-Antony
                                    How do you want to access the internet?
                                    Do you want to pass internet traffic over the VPN, so that yor get the home WAN IP or do you want to access the home LAN and go to the internet using your local WAN (split tunneling)?

                                    Please post the server configuration and the clients log.

                                    C 1 Reply Last reply Reply Quote 0
                                    • C
                                      Cleetus Antony @viragomann
                                      last edited by

                                      @viragomann
                                      I realize that this thread was very long to fix this issue.
                                      Now I managed to fix the NAT side and OPENVPN rule to pass the traffic to outbound. Now I can get internet in my connected clients.
                                      Thank you very much all for the advises.

                                      1 Reply Last reply Reply Quote 0
                                      • C
                                        Cleetus Antony @viragomann
                                        last edited by

                                        @viragomann
                                        Now I managed to get full tunnel and get internet in connected devices.
                                        Sorry to make this a very long discussion.
                                        Thank you all.
                                        If you don't mind, could you please delete the certificate chat section in this discussion ?

                                        1 Reply Last reply Reply Quote 0
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