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    OpenVPN Routing Issue

    OpenVPN
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    • M
      Mindesbunister
      last edited by

      i have pretty much the same setup. But i use openvpn instead of ipsec to connect the pfsense boxes and it works fine. Is this a possibility for you to switch from ipsec to openvpn ?

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      • N
        nirav.solanki
        last edited by

        IPSec tunnel is for site to site VPN connection for connectivity between our office and remote site.
        So we can connect to our servers with the local IP addresses.
        Home users need to connect through OpenVPN client to our OpenVPN server and then they want to connect to any of the servers that are connected through IPSec tunnel.

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        • DerelictD
          Derelict LAYER 8 Netgate
          last edited by

          So all your OpenVPN clients appear to the office network as tunnel network addresses on 10.0.8.0/24? Remote Access-style so no remote networks there?

          Did you add an IPsec Phase 2 for 10.0.8.0/24 <==> 192.168.55.0/24 on both sides of the IPsec tunnel?

          If the OpenVPN clients are not set with Redirect Gateway did you add 192.168.55.0/24 to the local networks in the OpenVPN server?

          Do the firewall rules on OpenVPN and IPsec pass the necessary traffic?

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

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          • N
            nirav.solanki
            last edited by

            So all your OpenVPN clients appear to the office network as tunnel network addresses on 10.0.8.0/24? Remote Access-style so no remote networks there?

            -> There are no remote networks there. We just want to connect from our home networks through our local PfSense.

            Did you add an IPsec Phase 2 for 10.0.8.0/24 <==> 192.168.55.0/24 on both sides of the IPsec tunnel?

            -> Have added Phase 2 entry for 10.0.8.0/24 on remote side. Local side I have already added Phase 2 entry for 192.168.55.0/24.

            If the OpenVPN clients are not set with Redirect Gateway did you add 192.168.55.0/24 to the local networks in the OpenVPN server?

            -> Have already added the network 192.168.55.0/24 in the local networks section in OpenVPN server

            Do the firewall rules on OpenVPN and IPsec pass the necessary traffic?

            -> The default rules are set for OpenVPN. No additional firewall rules have been configured as we can easily communicate with remote side from our local LAN ( 192.168.0.0/24 )

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            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by

              Then post up because if it is all as you say it would be working.

              Chattanooga, Tennessee, USA
              A comprehensive network diagram is worth 10,000 words and 15 conference calls.
              DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
              Do Not Chat For Help! NO_WAN_EGRESS(TM)

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              • N
                nirav.solanki
                last edited by

                Thank you for your reply.

                Do I need to add routes for VPN networks on the remote side or any extra configuration on OpenVPN server ?

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                • DerelictD
                  Derelict LAYER 8 Netgate
                  last edited by

                  As already discussed, there needs to be an IPsec phase 2 on the remote side for the OpenVPN tunnel network (so traffic from LAN to the OpenVPN tunnel network is "interesting" to IPsec) and there needs to be an OpenVPN "Local Network" for the remote side in the OpenVPN server (That adds a route to the client so it knows to route traffic for the remote side through OpenVPN.)

                  And the firewall rules need to pass the traffic.

                  Chattanooga, Tennessee, USA
                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

                  1 Reply Last reply Reply Quote 0
                  • N
                    nirav.solanki
                    last edited by

                    Have added Phase 2 entries for VPN network ( 10.0.8.0/24 ) and remote network ( 192.168.55.0/24 ) on both local and remote side.
                    Needed to add manual route for network 192.168.55.0/24 on windows system which is OpenVPN client.
                    Now I was able to communicate to the remote LAN systems.

                    PfSense doesn't push routes on client's machine. Is there any issue with the PfSense openvpn configuration ?

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                    • DerelictD
                      Derelict LAYER 8 Netgate
                      last edited by

                      pfSense OpenVPN pushes routes just fine. Has to use SSL/TLS mode though, not PSK, but that is how OpenVPN works.

                      Chattanooga, Tennessee, USA
                      A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                      DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                      Do Not Chat For Help! NO_WAN_EGRESS(TM)

                      1 Reply Last reply Reply Quote 0
                      • N
                        nirav.solanki
                        last edited by

                        Had used SSL/TLS mode but then also have to give manual routes in windows client machine to be able to get connected.

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                        • DerelictD
                          Derelict LAYER 8 Netgate
                          last edited by

                          Must've done something wrong.

                          Chattanooga, Tennessee, USA
                          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                          Do Not Chat For Help! NO_WAN_EGRESS(TM)

                          1 Reply Last reply Reply Quote 0
                          • N
                            nirav.solanki
                            last edited by

                            I have sent attachments of my configuration, openvpn rules, phase 2 entries in ipsec tunnel on local and remote site.

                            1.png
                            1.png_thumb
                            2.png
                            2.png_thumb
                            3.png
                            3.png_thumb
                            4.png
                            4.png_thumb
                            ![Local Site Phase 2.png](/public/imported_attachments/1/Local Site Phase 2.png)
                            ![Local Site Phase 2.png_thumb](/public/imported_attachments/1/Local Site Phase 2.png_thumb)
                            ![Remote Site Phase 2.png](/public/imported_attachments/1/Remote Site Phase 2.png)
                            ![Remote Site Phase 2.png_thumb](/public/imported_attachments/1/Remote Site Phase 2.png_thumb)

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                            • A
                              awair
                              last edited by

                              You don't seem to be consistent with your local/remote IPs:

                              Are you using 192.168.5.0/24 or 192.168.0.0/24? (See Phase 2 images)

                              2.4.3 (amd64)
                              and given up on the SG-1000

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                              • DerelictD
                                Derelict LAYER 8 Netgate
                                last edited by

                                Those examples don't show the Phase 2 in question (OpenVPN Tunnel <==> Far side LAN).

                                There are usually options to not pull routes on OpenVPN clients. It is Don't pull routes in pfSense.

                                Chattanooga, Tennessee, USA
                                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                1 Reply Last reply Reply Quote 0
                                • N
                                  nirav.solanki
                                  last edited by

                                  I have two PfSense firewalls running on the same versions 2.3.2
                                  I have entered IPSec 2nd Phase entries of VPN Network ( 192.168.5.0/24 ) and Remote Firewall ( 192.168.55.0/24 ) on both sides.
                                  When I connect to VPN, I can connect to all the systems behind the LAN.

                                  But the same process I am doing on the PfSense running version 2.2, I am not able to connect.
                                  Is PfSense versioning really a big concern ?

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                                  • DerelictD
                                    Derelict LAYER 8 Netgate
                                    last edited by

                                    Yes. Upgrade.

                                    Chattanooga, Tennessee, USA
                                    A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                    DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                    Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                    1 Reply Last reply Reply Quote 0
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