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    site-to-site, cannot ping from one lan to other lan

    Scheduled Pinned Locked Moved OpenVPN
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    • K
      Konstanti @A Former User
      last edited by

      @asdffdsa6131
      The problem , I think, is not routing
      According to the routing tables, it seems that everything is correct
      Look at the firewall logs on the Openvpn client side

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      • ?
        A Former User
        last edited by

        thanks, I tried I cannot find where to look for the logs for the firewall.
        and should I do someting like a continuous ping from the a computer on the server side to a computer on the client side, so as to trigger someting useful in the firewall logs?
        again thanks

        K 1 Reply Last reply Reply Quote 0
        • K
          Konstanti @A Former User
          last edited by Konstanti

          @asdffdsa6131
          What is host 10.0.0.1 ??
          How to set up routing from virtual machines ?
          They know, that network 192.168.62.0 / 24 need to seek through 10.0.0.7 ?
          And on wan interface 10.0.0.7 you need allow traffic to 192.168.62.0/24

          I think you should do this.
          1 configure static routes on virtual machines for network 192.168.62.0 / 24 through 10.0.0.7
          2. create rules on wan interface 10.0.0.7 to allow traffic for network 192.168.62.0 / 24

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          • ?
            A Former User
            last edited by

            thanks, this is not making sense, as I am no expert in linux and new to pfsense but all the settings look correct, the openvpn server settings, the openvpn client settings, the firewalls and routes.

            but what has me confused is that the pfsense server in azure, only has a single interface of WAN, but there is not a lan interface. for me that makes no sense and is confusing.

            0_1551043554856_75b89b9c-5563-429f-8e56-5f921c8c8983-image.png

            10.0.0.1, that is the default gateway for my azure virtual machines

            here is the ipconfig /all from a windows.10 virtual machine

            Ethernet adapter HyperV:

            Connection-specific DNS Suffix . : llb4b2ht4myejjazjx4yah4a0c.bx.internal.cloudapp.net
            Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter
            Physical Address. . . . . . . . . : 00-0D-3A-1C-73-51
            DHCP Enabled. . . . . . . . . . . : Yes
            Autoconfiguration Enabled . . . . : Yes
            IPv4 Address. . . . . . . . . . . : 10.0.0.4(Preferred)
            Subnet Mask . . . . . . . . . . . : 255.255.255.0
            Lease Obtained. . . . . . . . . . : Thursday, February 21, 2019 2:46:26 PM
            Lease Expires . . . . . . . . . . : Wednesday, April 2, 2155 10:51:01 PM
            Default Gateway . . . . . . . . . : 10.0.0.1
            DHCP Server . . . . . . . . . . . : 168.63.129.16
            DNS Servers . . . . . . . . . . . : 168.63.129.16
            NetBIOS over Tcpip. . . . . . . . : Enabled

            K 1 Reply Last reply Reply Quote 0
            • K
              Konstanti @A Former User
              last edited by Konstanti

              @asdffdsa6131
              As far as I understand , now PFSense - an internal host in a network 10.0.0.0/24 on which port 1194 from the main router is forwarded . Right ?

              I think you should do this.
              1 configure static routes on virtual machines for network 192.168.62.0 / 24 through 10.0.0.7

              2 create rules on wan interface 10.0.0.7 to allow traffic for network 192.168.62.0 / 24

              ? 1 Reply Last reply Reply Quote 0
              • ?
                A Former User @Konstanti
                last edited by

                @konstanti hi there,
                correct, pfsense server is an internal host of 10.0.0.0/24 and its ip address is 10.0.0.7
                and from my computer, 192.168.62.181, behind the sg1110, I can ping 10.0.0.7.

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                • ?
                  A Former User
                  last edited by

                  ok. can you please be a little more specific as to what needs to be done on the openvpn server and openvpn client.
                  I am new to linux, pfsense and azure, I have been many days getting this far and I am growing from the experience.
                  I am not asking you for exactly what needs to be done, in 100% detail but a more detailed outline?
                  thanks again.

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                  • K
                    Konstanti
                    last edited by

                    @asdffdsa6131
                    This is easily explained, it is a feature of PFSense, an icmp packet that has passed through The OpenVPN client interface rule , is considered good and it is not blocked . But you can not ping , for example, 10.0.0.4 from your local computer , because the computer 10.0.0.4 knows nothing about the network 192.168. and sends the answer to 10.0.0.1 ( if you create the NAT OUTBOUND rule on the wan interface 10.0.0.7 for the network 192.168 , you can ping the entire network 10.0.0.0/24.
                    And in the opposite direction there is no (10.0.0.0 - >192.168.)
                    As much as I did , I wrote above
                    1 static routes
                    2 an allow rule for the network 192.168 on the WAN interface 10.0.0.7

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                    • ?
                      A Former User
                      last edited by

                      ok. i will work on that thanks much

                      K 1 Reply Last reply Reply Quote 0
                      • K
                        Konstanti @A Former User
                        last edited by

                        @asdffdsa6131
                        what is the guest operating system on the virtual machines ? For example, 10.0.0.4 ?

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                        • ?
                          A Former User
                          last edited by

                          ms.windows.10

                          K 1 Reply Last reply Reply Quote 0
                          • K
                            Konstanti @A Former User
                            last edited by Konstanti

                            @asdffdsa6131
                            1.From windows cli
                            route add 192.168.62.0 mask 255.255.255.0 10.0.0.7
                            2 Create an allow rule for the network 192.168 on the WAN interface 10.0.0.7

                            0_1551045285954_ee6a2146-e192-4b1e-9c41-9696b8f5d7c1-image.png

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                            • ?
                              A Former User
                              last edited by

                              newbie question, on 10.0.0.7, the openvpn client, the outbound nat rule mode is automatic outbound nat rule generation and there is no option for adding rules, but I can add a mapping.
                              should I add a mapping or do I need to change the outbound nat mode?

                              K 1 Reply Last reply Reply Quote 0
                              • K
                                Konstanti @A Former User
                                last edited by Konstanti

                                @asdffdsa6131

                                Do not create a NAT OUTBOUND rule yet
                                Try to do as I wrote in the previous post

                                If I understand everything correctly, you will be able to ping 10.0.0.4 from a network 192.168.62.0 / 24 and Vice versa

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                                • ?
                                  A Former User
                                  last edited by

                                  on the openvpn client, I did
                                  0_1551046014656_63952d70-241c-4be7-b734-dc71f7e39b83-image.png

                                  on 10.0.0.7, the openvpn client, the outbound nat rule mode is automatic outbound nat rule generation and there is no option for adding rules, but I can add a mapping.
                                  should I add a mapping or do I need to change the outbound nat mode?

                                  K 1 Reply Last reply Reply Quote 0
                                  • ?
                                    A Former User
                                    last edited by

                                    are you running a different version of pfsense, as your screenshot look visually different

                                    0_1551046402857_50d8e7a9-724b-4e42-aed4-3c306b8fffa7-image.png

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                                    • K
                                      Konstanti @A Former User
                                      last edited by Konstanti

                                      @asdffdsa6131

                                      1. 10.0.0.7 already knows about this network
                                        0_1551046307753_1b7cad08-5ae7-4f73-80e1-cf16e971e152-image.png

                                      No need to create another static route on 10.0.0.7 for network 192.168.62.0 / 24
                                      Don't need to configure OUTBOUND NAT now
                                      Need to, for example

                                      1. on host 10.0.0.4, run the route add command ( see previous post)
                                      2. create allow rule (see previous post)

                                      Then you can ping the host 10.0.0.4 from the network 192.168.62.0/24
                                      and the host 10.0.0.4 will be able to ping the network 192.168.62.0/24

                                      https://forum.netgate.com/topic/140925/site-to-site-cannot-ping-from-one-lan-to-other-lan/17

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                                      • ?
                                        A Former User
                                        last edited by

                                        thanks but i added the firewall rule in openvpn client and the route add 192.168.62.0 mask 255.255.255.0 10.0.0.7 on 10.0.0.4
                                        but no pinging.

                                        0_1551047356628_12f59c89-b642-4194-bdbf-3809f59ecddd-image.png
                                        and added the "route add 192.168.62.0 mask 255.255.255.0 10.0.0.7"

                                        C:\Users\user01>route print

                                        Interface List
                                        7...00 0d 3a 1c 73 51 ......Microsoft Hyper-V Network Adapter
                                        8...00 ff e3 05 f1 eb ......TAP-ProtonVPN Windows Adapter V9
                                        6...00 ff d6 ca 59 0c ......TAP-Windows Adapter V9
                                        1...........................Software Loopback Interface 1

                                        IPv4 Route Table

                                        Active Routes:
                                        Network Destination Netmask Gateway Interface Metric
                                        0.0.0.0 0.0.0.0 10.0.0.1 10.0.0.4 10
                                        10.0.0.0 255.255.255.0 On-link 10.0.0.4 266
                                        10.0.0.4 255.255.255.255 On-link 10.0.0.4 266
                                        10.0.0.255 255.255.255.255 On-link 10.0.0.4 266
                                        127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
                                        127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
                                        127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
                                        168.63.129.16 255.255.255.255 10.0.0.1 10.0.0.4 11
                                        169.254.169.254 255.255.255.255 10.0.0.1 10.0.0.4 11
                                        192.168.62.0 255.255.255.0 10.0.0.7 10.0.0.4 11
                                        224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
                                        224.0.0.0 240.0.0.0 On-link 10.0.0.4 266
                                        255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
                                        255.255.255.255 255.255.255.255 On-link 10.0.0.4 266

                                        Persistent Routes:
                                        None

                                        IPv6 Route Table

                                        Active Routes:
                                        If Metric Network Destination Gateway
                                        1 331 ::1/128 On-link
                                        1 331 ff00::/8 On-link

                                        Persistent Routes:
                                        None

                                        K 1 Reply Last reply Reply Quote 0
                                        • K
                                          Konstanti @A Former User
                                          last edited by Konstanti

                                          @asdffdsa6131
                                          Hmmm.
                                          Let's check.
                                          I see that packets went in the direction 192.168.62.0/24
                                          Check to see if the numbers appear in this place ?
                                          This is a rule on the OpenVpn server interface
                                          0_1551048928252_d553ef14-0f5b-449a-bd0d-09c2b6214446-image.png

                                          Can host 10.0.0.4 ping 192.168.62.1 ?
                                          Can host 192.168.62.1 ping 10.0.0.4 ?

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                                          • ?
                                            A Former User
                                            last edited by

                                            hi again,
                                            I have a continuous ping from 10.0.0.4 to 192.168.62.1 and it is 'request time out'

                                            K 1 Reply Last reply Reply Quote 0
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