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    Routing multiple LAN-s in OpenVPN

    Scheduled Pinned Locked Moved OpenVPN
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    • N
      nijaz
      last edited by

      Hello,
      i Have this situation

      I have
      PC0 in network 172.16.0.0 that is connected to RouterA

      RouterA is connected to RouterB via OpenVPN

      PC1 in network 172.16.1.0 that is connected to RouterB
      PC2 in network 192.168.1.0 that is connected to RouterB

      PC0 and PC1 can ping one another
      PC1 and PC2 can ping one another

      PC0 and PC2 cant ping one another

      How to tell RouterA when some one ping 192.168.1.0 network that he send packages on RouterB?

      Thanks a lot!
      fpSense.JPG
      fpSense.JPG_thumb

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        Which end is the OpenVPN server and which is the client?

        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
          nijaz
          last edited by

          Router A is server and RouterB is client

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          • DerelictD
            Derelict LAYER 8 Netgate
            last edited by

            Add 192.168.1.0/24 to the Remote Networks on Router A and be sure traffic is allowed from 192.168.1.0/24 on Router A's OpenVPN tab or assigned interface.

            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
              nijaz
              last edited by

              Thanks mate,
              I did what you told me to do, tested Ping and tracert and it worked!

              When i tried to connect to database which is in 192.168.1.0/24 network i could not connect.

              I than started ping and tracert again, and it didnt worked anymore.

              I can still ping 172.16.1.0/24 network.
              I attached printscreen of my VPN / OpenVPN / Server / Tunel settings / IPv4 Remote Network settings on Server

              Is there any other thing that maybe blocking my traffic?
              Thanks again!
              PS: Sorry for my bad English :-[

              tunel.JPG
              tunel.JPG_thumb

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              • V
                viragomann
                last edited by

                Do you have more OpenVPN connections up than this one at server or client?

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                • N
                  nijaz
                  last edited by

                  Yes, i have 19 of them.
                  I manage to setup connection, ping and tracert is working now.

                  I now need to allow SQL connection from PC0 to PC2
                  SQL server is on PC2

                  If i understand this, i need to create port forwarding for SQL ports on RouterA?

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                  • V
                    viragomann
                    last edited by

                    19 vpn servers or clients?!

                    No, you don't need port forwarding there. The traffic is routed between the host over vpn.
                    If the routing is working you just need a firewall rule allowing the traffic on openvpn interface of router A, as Derelict mentioned above.

                    Do have set an outbound NAT rule for the vpn traffic on router B for the 192.168.1.0/24 networks interface?

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                    • N
                      nijaz
                      last edited by

                      Im sorry guys, but I still didnt make this work
                      This is My network topology.

                      Edi and Ted can ping one another
                      Ted and Maria can ping one another

                      Edi and Maria CANT ping one another

                      USA is my VPN server for 19 VPN clients. This is first time that i need to add 2 LAN networks on one VPN Client.

                      When i ping from Spain pfSense 192.168.1.1 /24 port on USA pfSense 172.16.0.1 /24 port it works.

                      When i ping PC to PC it doesnt work

                      I added Firewall rule to allow ICMP protocol any to any on all three networks.

                      How to allow them to ping.
                      What am i missing?
                      Thanks a lot

                      PfSense.JPG
                      PfSense.JPG_thumb

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                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Local software firewalls on the PCs?

                        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
                        • M
                          marvosa
                          last edited by

                          This appears to be a simple setup… post the openvpn configs from both sides (server1.conf and client1.conf respectively) and we'll have a better idea of what is happening.

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