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    Issue Connecting pfsense as a client to OpenVPN Access Server

    Scheduled Pinned Locked Moved OpenVPN
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    • RicoR
      Rico LAYER 8 Rebel Alliance
      last edited by

      Hmmm no idea what this is. ;-)
      However please try to switch TLS Encryption and Authentication to TLS Authentication in your pfSense Client.

      -Rico

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      • S
        shahid3507
        last edited by

        @Rico Thanks a lot!! I was able to to connect after switching TLS Encryption and Authentication to TLS Authentication and than after that Added SHA1(160 bit)

        Now I am able to ping the AWS network from pfsense end but not able to ping the remote network (pfsense) side from the AWS end.

        I am not able to ping bidirectionally, Is this a normal behaviour in case of OpenVPN our some pfsense configuration needs to be done ?

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        • RicoR
          Rico LAYER 8 Rebel Alliance
          last edited by Rico

          You need to setup your Rules in the Firewall -> Rules -> OpenVPN tab (pfSense WebGUI).
          For testing just do any-any and check if everything works.

          -Rico

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by johnpoz

            @shahid3507 said in Issue Connecting pfsense as a client to OpenVPN Access Server:

            tls-crypt /var/etc/openvpn/client1.tls-crypt

            I am like 99% sure that openvpn-as does not support tls-crypt.. Atleast not current 2.6.1 version..

            The AS stores its config in a db, so its a bit harder to show - but there is zero place to turn on crypt for tls in the gui. And do believe reading something about it - they did a while back enable crypt for the connect client (ios and android) but I do not believe the AS server supports it as of yet.

            When you setup the client in pfsense - did you download the client config from the AS to validate what you need to set?

            example - just download my client config from my AS

             Automatically generated OpenVPN client config file
            # Generated on Mon Feb  4 07:15:51 2019 by ns1
            # Note: this config file contains inline private keys
            #       and therefore should be kept confidential!
            # Note: this configuration is user-locked to the username below
            

            Certs will all be inline

            And its just doing auth

            key-direction 1
            <tls-auth>
            #
            # 2048 bit OpenVPN static key (Server Agent)
            #
            -----BEGIN OpenVPN Static key V1-----
            12303adb7486e4ef9d4dae4742741a22
            10f785d43598499de66a7da89ee45221
            <snipped>
            235863ac6188180030d13ab6481e966c
            a8bd1f1b1c08bd009430af58ab3e0b88
            -----END OpenVPN Static key V1-----
            </tls-auth>
            

            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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            • S
              shahid3507
              last edited by

              @johnpoz I have just downloaded the config from AS and followed this document.
              https://www.netgate.com/docs/pfsense/vpn/openvpn/connecting-pfsense-to-an-openvpn-access-server.html

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by johnpoz

                Seems you didn't follow the part where it says
                " pfSense may be configured to use the info in the .ovpn file"

                โ˜บ

                0_1549286645395_validateyourauth.png

                And not encryption and auth. Double check all your other settings.

                example here is my client config form pfsense for my openvpn-as server

                dev ovpnc3
                verb 1
                dev-type tun
                dev-node /dev/tun3
                writepid /var/run/openvpn_client3.pid
                #user nobody
                #group nobody
                script-security 3
                daemon
                keepalive 10 60
                ping-timer-rem
                persist-tun
                persist-key
                proto udp4
                cipher AES-256-CBC
                auth SHA256
                up /usr/local/sbin/ovpn-linkup
                down /usr/local/sbin/ovpn-linkdown
                local 64.53.<snipped>
                engine rdrand
                tls-client
                client
                lport 0
                management /var/etc/openvpn/client3.sock unix
                remote <snipped> 1195
                ca /var/etc/openvpn/client3.ca 
                cert /var/etc/openvpn/client3.cert 
                key /var/etc/openvpn/client3.key 
                tls-auth /var/etc/openvpn/client3.tls-auth 1
                ncp-ciphers AES-128-GCM:AES-192-GCM:AES-256-GCM:AES-128-CBC:AES-192-CBC:AES-256-CBC
                comp-lzo no
                resolv-retry infinite
                route-nopull
                fast-io
                sndbuf 524288
                rcvbuf 524288
                [2.4.4-RELEASE][root@sg4860.local.lan]/var/etc/openvpn: 
                

                notice
                tls-auth /var/etc/openvpn/client3.tls-auth 1

                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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                • S
                  shahid3507
                  last edited by

                  @johnpoz
                  My bad, missed it.
                  By the way do you know anything regarding Bidirectional ping part ?
                  I have added any to any config in firewall for all interfaces still it dosen't work.

                  Can you please help me in this on how to do it ?
                  cc: @Rico

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    What are you trying to 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 24.11 | Lab VMs 2.8, 24.11

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                    • S
                      shahid3507
                      last edited by

                      The tunnel is connecting and I am able to ping the AWS side (Access server subnet) but when I am trying to ping the client side form the access server or the subnet than it's not reachable.

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                      • S
                        shahid3507
                        last edited by

                        Any Idea regarding this connectivity stuff @Rico ??

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                        • RicoR
                          Rico LAYER 8 Rebel Alliance
                          last edited by

                          Not atm, I don't have any experience with OpenVPN AS or AWS, sorry. ๐Ÿ˜‘
                          But my guess is @johnpoz will come back with some ideas. ๐Ÿ˜€

                          -Rico

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by

                            Ping what exactly? Can you ping the lan IP of pfsense from your aws side?

                            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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                            • S
                              shahid3507
                              last edited by

                              No I can't @johnpoz

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator
                                last edited by

                                What is your routing on your aws side show you how to get to your lan network?

                                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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                                • S
                                  shahid3507
                                  last edited by

                                  There was a need to add route for specific traffic and change the OpenVPN settings to act as site to site VPN.
                                  It is now working.

                                  Thanks for your help @johnpoz @Rico

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