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    [SOLVED] Site-to-site OpenVPN between pfSense and MikroTik

    Scheduled Pinned Locked Moved OpenVPN
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    • M
      marcelo.comtix
      last edited by

      Here are my settings that worked:
      PFSense 2.4.4-RELEASE-p3
      Mikrotik 6.45.3

      Follow the modifications:

      PFSENSE:

      System -> Cert Manager -> CAs
      Create new CA (vpn-tunnel-ca). Export "CA cert" file (my-ca.crt).

      System -> Cert Manager -> Certificates
      Create two certificates (use CA created above) - one for the VPN Server (vpn-tunnel) and one for the MikroTik client (mik-vpn). Export cert and key files for client certificate (mik-vpn.crt and mik-vpn.key).

      VPN -> OpenVPN -> Server
      Create new VPN server:
      Server Mode: Peer to Peer (SSL/TLS)
      Protocol: TCP
      Device Mode: tun
      Interface: WAN
      Local port: 24100
      TLS Authentication: (clear checkbox, MikroTik doesn't support shared TLS key)
      Peer Certificate Authority: vpn-tunnel-ca
      Server Certificate: vpn-tunnel
      Encryption algorithm: AES-256-CBC (256 bit key, 128 bit block)
      Auth Digest Algorithm: SHA1 (160-bit)
      Hardware Crypto: No Hardware Crypto Aceleration
      Certificate Depth: One (Client + Server)
      IPv4 Tunnel Network: 10.200.0.0/29
      IPv4 Local Network/s: 192.168.1.0/24
      IPv4 Remote Network/s: 192.168.2.0/24
      Compression: Omit Preference (Use OpenVPN Default)
      Topology: net30 - Isolated /30 network per client

      *Very important, fix the route of the remote network in PFSense
      Client Specific Overrides:
      +Add
      Server List: *select your server
      Common Name: "common name of certificate client"
      Advanced: iroute 192.168.2.0 255.255.255.0;

      MikroTik:
      Copy two certificate files and the key file to Files. Import all of them from System/Certificates.

      PPP -> Profiles - create new:
      Name: ovpn-profile
      Local address: 10.200.0.6
      Remote address: 10.200.0.5
      Change TCP MSS: yes
      *Protocols:
      Use Compression: no
      Use Encryption: yes

      PPP -> Interface
      create new OVPN Client:
      Name: ovpn-office
      Connect To: 1.1.1.1 (Your IP PFSense VPN Server)
      Port: 24100
      Mode: ip
      User: any
      Profile: ovpn-profile
      Certificate: mik-vpn.crt_0
      Auth: sha 1
      Cipher: aes 256
      Add Default Route: (do not check this)

      It is working perfectly with these settings.
      Remember that in PFSense the rules for the OpenVPN interface must be created.
      In Mikrotik, in firewall, check the lists of interface "LAN".

      R S 2 Replies Last reply Reply Quote 1
      • M
        marcelo.comtix @fabianoheringer
        last edited by

        @fabianoheringer , I posted the update of instructions.
        The version of mikrotik firmware is the problem. For the newest version, the update instructions worked fine.

        R 1 Reply Last reply Reply Quote 1
        • R
          Rodrigo Lucio @marcelo.comtix
          last edited by johnpoz

          @marcelo-comtix
          Boa noite marcelo!
          Estou usando dois PfSense ambos com a versão 2.4.4-RELEASE-p3, configurados exatamente iguais (192.168.1.0/24 e 192.168.2.0/24) como OVPN server para um Mikrotik como client de ambos (192.168.0.0/24). A conexão entre o PfSense server (192.168.1.0/24) está perfeita com o MK, fiz conforme o processo mensionado acima. Porém a outra conexão eu consigo "pingar" o tunel nas duas pontas (10.10.10.6 e 10.10.10.5), e do Mikrotik consigo "pingar" o PfSense e as maquinas da rede (192.168.2.0/24), mas ao contrário não funciona e de nenhuma máquina consigo "pingar" de ambos os lados.
          Consegue me ajudar?

          Obrigado!

          Mod Edit: If your going to post in an english section, you need to post in english.. I have done a google translate for you - I have no idea if correct... But please refrain from posting non english in the english boards. Thank you.

          translated:
          Good night Marcelo!
          I am using two PfSense both with version 2.4.4-RELEASE-p3, configured exactly the same (192.168.1.0/24 and 192.168.2.0/24) as OVPN server for a Mikrotik as client of both (192.168.0.0/24). The connection between PfSense server (192.168.1.0/24) is perfect with MK, I made according to the process mentioned above. But the other connection I can "ping" the tunnel at both ends (10.10.10.6 and 10.10.10.5), and from Mikrotik I can "ping" PfSense and network machines (192.168.2.0/24), but on the contrary not works and no machine can "drip" on both sides.
          Can you help me?

          Thank you!

          M 1 Reply Last reply Reply Quote 0
          • D
            DavidBell
            last edited by

            Thanks for the tutorial
            I followed this and the VPN works. On the other hand, the tunnel does not route any traffic between the equipments. if I force a srcnat on an ip it works but temporally and not stable. Does one have a fire rule to add?
            PFSense 2.4.4-RELEASE-p3
            Mikrotik 6.45.6

            Can you help me?

            Thank you!

            M 1 Reply Last reply Reply Quote 0
            • M
              marcelo.comtix @DavidBell
              last edited by

              @DavidBell , I have 2 mikrotik router working with the mentioned setup. It may be that in your case there is some other configuration in pfsense or mikrotik. It would be interesting to better understand its structure.

              On the Mikrotik side it worked even not informing the IPS in openvpn profile.

              I will post again with this setting.

              If you can post how is your configuration, I help you.

              Tks

              1 Reply Last reply Reply Quote 0
              • M
                marcelo.comtix @Rodrigo Lucio
                last edited by

                @Rodrigo-Lucio

                Let me get this straight.
                You have 2 PFSense - OVPN Server.

                PFSense1 - 192.168.1.0/24
                PFSense2 - 192.168.2.0/24

                Mikrotik is a client of PFSense1 and PFSense2.

                That is:
                PFSense1 - 192.168.1.0/24 - OVPN Server
                PFSense2 - 192.168.2.0/24 - OVPN Server
                Mikrotik - 192.168.0.0/24
                OVPN Client1 -> PFSense1
                OVPN Client2 -> PFSense2

                That's right?

                If so, are you using different networks for your Tunnel Network?
                Example:
                PFSense1- 10.10.10.0/24
                PFSense2 -10.20.20.0/24

                In this case, the tunnel network must be different. Understanding is easier.

                tks.

                1 Reply Last reply Reply Quote 0
                • R
                  rfmendes
                  last edited by

                  Hi guys...
                  I have the same problem as the @marcelo.comtix
                  You resolved this?

                  Att;
                  Rafael Mendes
                  rafael@rmitsolucoes.com.br

                  –
                  Att;
                  Rafael
                  rafael.mendes@msn.com

                  1 Reply Last reply Reply Quote 0
                  • R
                    rubic @marcelo.comtix
                    last edited by

                    @marcelo-comtix said in [SOLVED] Site-to-site OpenVPN between pfSense and MikroTik:

                    Here are my settings that worked:

                    Thank you for some tips! My settings are almost the same. The only difference is that I use topology subnet on pfSense and default PPP profile on Mikrotik. As Mikrotik WIKI states that both 'use-compression' and 'use-encryption' do not work on OVPN tunnels and default PPP profile changes TCP MSS, you do not need separate profile for OVPN.

                    1 Reply Last reply Reply Quote 0
                    • S
                      Sidaum @marcelo.comtix
                      last edited by

                      @marcelo-comtix said in [SOLVED] Site-to-site OpenVPN between pfSense and MikroTik:

                      Here are my settings that worked:
                      PFSense 2.4.4-RELEASE-p3
                      Mikrotik 6.45.3

                      Follow the modifications:

                      PFSENSE:

                      System -> Cert Manager -> CAs
                      Create new CA (vpn-tunnel-ca). Export "CA cert" file (my-ca.crt).

                      System -> Cert Manager -> Certificates
                      Create two certificates (use CA created above) - one for the VPN Server (vpn-tunnel) and one for the MikroTik client (mik-vpn). Export cert and key files for client certificate (mik-vpn.crt and mik-vpn.key).

                      VPN -> OpenVPN -> Server
                      Create new VPN server:
                      Server Mode: Peer to Peer (SSL/TLS)
                      Protocol: TCP
                      Device Mode: tun
                      Interface: WAN
                      Local port: 24100
                      TLS Authentication: (clear checkbox, MikroTik doesn't support shared TLS key)
                      Peer Certificate Authority: vpn-tunnel-ca
                      Server Certificate: vpn-tunnel
                      Encryption algorithm: AES-256-CBC (256 bit key, 128 bit block)
                      Auth Digest Algorithm: SHA1 (160-bit)
                      Hardware Crypto: No Hardware Crypto Aceleration
                      Certificate Depth: One (Client + Server)
                      IPv4 Tunnel Network: 10.200.0.0/29
                      IPv4 Local Network/s: 192.168.1.0/24
                      IPv4 Remote Network/s: 192.168.2.0/24
                      Compression: Omit Preference (Use OpenVPN Default)
                      Topology: net30 - Isolated /30 network per client

                      *Very important, fix the route of the remote network in PFSense
                      Client Specific Overrides:
                      +Add
                      Server List: *select your server
                      Common Name: "common name of certificate client"
                      Advanced: iroute 192.168.2.0 255.255.255.0;

                      MikroTik:
                      Copy two certificate files and the key file to Files. Import all of them from System/Certificates.

                      PPP -> Profiles - create new:
                      Name: ovpn-profile
                      Local address: 10.200.0.6
                      Remote address: 10.200.0.5
                      Change TCP MSS: yes
                      *Protocols:
                      Use Compression: no
                      Use Encryption: yes

                      PPP -> Interface
                      create new OVPN Client:
                      Name: ovpn-office
                      Connect To: 1.1.1.1 (Your IP PFSense VPN Server)
                      Port: 24100
                      Mode: ip
                      User: any
                      Profile: ovpn-profile
                      Certificate: mik-vpn.crt_0
                      Auth: sha 1
                      Cipher: aes 256
                      Add Default Route: (do not check this)

                      It is working perfectly with these settings.
                      Remember that in PFSense the rules for the OpenVPN interface must be created.
                      In Mikrotik, in firewall, check the lists of interface "LAN".

                      Hy, so many time after this post, I had this porblem on my work, following @marcelo-comtix updated instruction I was able to put the tunnel up, but only on PFsense Open VPN Status and MK Interface Traffic page. I cant ping any side to any side, Can u help me with this old post? R u Brazilian?

                      M 1 Reply Last reply Reply Quote 0
                      • M
                        marcelo.comtix
                        last edited by

                        UPDATE

                        My setup:
                        PFSense 2.4.4-RELEASE-p3
                        Mikrotik 6.44.x, 6.45.x, 6.46.x
                        PFSense LAN (Office): 192.168.1.0/24
                        Mikrotik LAN (Client): 192.168.2.0/24

                        PFSENSE

                        • CERTIFICATES

                          1. System > Cert Manager > CAs
                            Create new CA (OVPN-CA)
                            Export "CA cert" file (OVPN-CA.crt)

                          2. System -> Cert Manager -> Certificates
                            Create two certificates (use CA created above):
                            One for the VPN Server (OVPN-SERVER), set the option "Certificate type: Server Certificate"
                            One for the VPN Client (OVPN-MK), set option "Certificate type: User Certificate"
                            ATENTION! In the VPN Client creation (OVPN-MK), set "Common name: site1.example.com" and save for later use.
                            Export cert and key files for client certificate (OVPN-MK.crt and OVPN-MK.key).

                        • OPENVPN

                          1. VPN -> OpenVPN -> Server
                            +Add
                            Create new VPN server:
                            Server Mode: Peer to Peer (SSL/TLS)
                            Protocol: TCP
                            Device Mode: tun
                            Interface: WAN
                            Local port: 24100
                            Description: OVPN-MK
                            TLS Authentication: (clear checkbox, MikroTik doesn't support shared TLS key)
                            Peer Certificate Authority: OVPN-CA
                            Server Certificate: OVPN-SERVER
                            Encryption algorithm: BF-CBC (128-bit)
                            Auth Digest Algorithm: SHA1 (160-bit)
                            Hardware Crypto: No Hardware Crypto Aceleration
                            Certificate Depth: One (Client + Server)
                            IPv4 Tunnel Network: 10.100.0.0/29
                            IPv4 Local Network/s: 192.168.1.0/24
                            IPv4 Remote Network/s: 192.168.2.0/24
                            Compression: Omit Preference (Use OpenVPN Default)
                            (Mikrotik have limitations, one is about LZO compression, this explaned in Mikrotik Profile section)
                            Topology: net30 and Subnet works

                          2. VPN -> OpenVPN -> Client Specific Overrides
                            ATENTION 1!
                            Fix the route of the remote network in PFSense, this is mandatory to work.
                            +Add
                            Server List: OVPN-MK (select your vpn server configuration)
                            Common Name: site1.example.com
                            Advanced: iroute 192.168.2.0 255.255.255.0;
                            ATENTION 2! After adding or changing the "Client Specific Overrides" restart de OVPN Server to activate the configurations. To do this, Status -> OpenVPN and click "restart icon" in your OPVN server.

                        • FIREWALL
                          Firewall -> Rules -> OpenVPN
                          Create a rule to allow interface OpenVPN traffic. This is a sample rule to allow any traffic in the OpenVPN interface.
                          +Add
                          Action: Pass
                          Interface: OpenVPN
                          Address Family: IPV4
                          Protocol: Any
                          Source: Any
                          Destination: Any
                          Description: OpenVPN interface traffic

                        MIKROTIK

                        • Certificates
                          Copy two certificate files and the key file to Files.
                          Import all of them from System -> Certificates.

                        • PROFILE
                          Mikrotik OpenVPN have limitations, as @rubic commented see below on MK Wiki: (UDP and LZO Compression)
                          https://wiki.mikrotik.com/wiki/OpenVPN#Unsupported
                          For most simplified scenarios, the default profile works without any modifications.
                          I have tested profiles with and without Encryption option set.
                          I recommend creating a separate profile, if you are going to use dual WAN in PFSense and up,down scripts in mikrotik profile.

                        • PPP Interface
                          PPP -> Interface
                          create new OVPN Client:
                          Name: ovpn-office
                          Connect To: 9.9.9.9 (Your IP PFSense VPN Server)
                          Port: 24100
                          Mode: ip
                          User: any
                          Profile: default (or custom ovpn-profile)
                          Certificate: OVPN-MK.crt_0
                          Auth: sha 1
                          Cipher: blowfish 128
                          Add Default Route: (do not check this)

                        R M 2 Replies Last reply Reply Quote 0
                        • R
                          rezance @marcelo.comtix
                          last edited by rezance

                          @marcelo-comtix
                          I follow your steps precisely, but i still having problem. It looks that connections is established, but mikrotik and pfsense can not ping each other, connections is reset every 60 seconds.

                          In pfsense dashboard I see that connection is up, but after 60 seconds it is reseted due in activity.
                          In mikrotik I see only rx packets. I see that routes are in place.

                          Also I was not able to made connection until I did not create own openvpn profile in mikrotik, where I assigned ip to local interface, otherwise connection was mikrotik with error "no ip address provided"
                          Any idea?

                          M 1 Reply Last reply Reply Quote 0
                          • A
                            andersonkiyoshi
                            last edited by andersonkiyoshi

                            @rezance
                            A solução para o Mikrotik se comunicar ao Pfsense é fazer um masquerade. É a única coisa que falta da última configuração acima do @marcelo-comtix
                            Chain: src-nat
                            Out-Interface: ovpn-office
                            Action: masquerade

                            The solution for Mikrotik to communicate with Pfsense is to make a masquerade. It's the only thing missing from the last configuration above @ marcelo-comtix
                            Chain: src-nat
                            Out-Interface: ovpn-office
                            Action: masquerade

                            H 1 Reply Last reply Reply Quote 0
                            • H
                              huutai1996 @andersonkiyoshi
                              last edited by huutai1996

                              @andersonkiyoshi i followed the your solution. i ping from mikrotik to pfsense ok but ping from pfsense to mik not ok

                              A 1 Reply Last reply Reply Quote 0
                              • M
                                marcelo.comtix @rezance
                                last edited by

                                @rezance what's your mikrotik version ?

                                Please, send your networks the both sides of tunnel.

                                1 Reply Last reply Reply Quote 0
                                • A
                                  andersonkiyoshi @huutai1996
                                  last edited by

                                  @huutai1996

                                  VPN -> OpenVPN -> Client Specific Overrides
                                  ATENTION 1!
                                  Fix the route of the remote network in PFSense, this is mandatory to work.
                                  +Add
                                  Server List: OVPN-MK (select your vpn server configuration)
                                  Common Name: site1.example.com
                                  Advanced: iroute 192.168.2.0 255.255.255.0;
                                  ATENTION 2! After adding or changing the "Client Specific Overrides" restart de OVPN Server to activate the configurations. To do this, Status -> OpenVPN and click "restart icon" in your OPVN server.

                                  This route has to be done correctly, you need to take the path to reach the destination.

                                  1 Reply Last reply Reply Quote 0
                                  • M
                                    mike8888 @marcelo.comtix
                                    last edited by

                                    @marcelo-comtix thanks bro, your configuration (march 7th) works for me

                                    i use pfsense 2.4.4 p3 as server
                                    and mikrotik RB750G3 (6.46.7) as client

                                    cheers

                                    mike

                                    1 Reply Last reply Reply Quote 1
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