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

    Scheduled Pinned Locked Moved OpenVPN
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    • 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.

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                            • 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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