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    Unable to ping from OpenVPN endpoint to LAN network

    Scheduled Pinned Locked Moved OpenVPN
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    • DerelictD
      Derelict LAYER 8 Netgate
      last edited by

      Did you check the firewall software on the hosts themselves?

      If that's not it I guess you'll have to post more details about how you set up the VPN.

      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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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        @ianc1215:

        Sorry I don't follow you? What additional info do you need?

        The subnet would be nice.

        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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        • S
          solignis
          last edited by

          Oh sorry…

          My LAN subnet is 10.0.0.0 / 24
          My OpenVPN subnet is 10.1.0.0 / 28
          My AJG subnet is 10.2.0.0 /24

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          • S
            solignis
            last edited by

            Here is what I am seeing in the firewall log.

            ![FW log.png](/public/imported_attachments/1/FW log.png)
            ![FW log.png_thumb](/public/imported_attachments/1/FW log.png_thumb)

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            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by

              And when you click the red X what does it say?  Obviously there's something else at play other than the rules you've posted.  Try not to crop so much so you give more context, like the interface the rules are on, etc.

              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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              • S
                solignis
                last edited by

                Wow first let me say… I had no idea the X was clickable...  :o

                Second here is what it said.

                ![2015-08-24 19_24_21-OneNote.png](/public/imported_attachments/1/2015-08-24 19_24_21-OneNote.png)
                ![2015-08-24 19_24_21-OneNote.png_thumb](/public/imported_attachments/1/2015-08-24 19_24_21-OneNote.png_thumb)

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                • S
                  solignis
                  last edited by

                  That does not make 100% sense to me since I thought I opened up the firewall on the OpenVPN interface 100%.

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                  • DerelictD
                    Derelict LAYER 8 Netgate
                    last edited by

                    Apparently not.  What OpenVPN tabs and assigned interface tabs do you have and what are the rules on them?

                    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
                    • S
                      solignis
                      last edited by

                      I found out what I was going wrong with the firewall. There was no explicit allow all so if it did not match it blocked it.

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                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Yeah that's generally how it 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
                        • S
                          solignis
                          last edited by

                          Normally I am pretty good at setting this stuff. Mind you I am a little rusty. But this one has me stumped.

                          My LAN can ping the OpenVPN interface on the router. But I cannot ping any VPN hosts. Also the VPN host while still connected cannot ping anything except itself. It can't even ping the router VPN endpoint.

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                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            You might not be able to ping the VPN tunnel interfaces.  That is normal.

                            Instead of giving gobbledygook like this:

                            My LAN can ping the OpenVPN interface on the router. But I cannot ping any VPN hosts. Also the VPN host while still connected cannot ping anything except itself. It can't even ping the router VPN endpoint.

                            Give us something we can work with.  Specific IP addresses, interface addresses, interfaces, etc.

                            I have NO IDEA what you are talking about when you say "VPN endpoint."

                            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
                            • S
                              solignis
                              last edited by

                              Ok I have made a huge leap in troubleshooting progress. I am now able to ping from my VPN client which is my laptop (10.1.0.2) to my desktop (10.0.0.101) on my LAN. Sadly my way of accomplishing this was to erase my OpenVPN server and client configurations and reload them. After re-configuring the OpenVPN server I noticed that it refused to start the service. I took a look at the log file and found it was stating it could create the interface it needed to host the server (ovpns1).

                              Part of the previous issue looks OpenVPN was not able to get access to the Windows routing table to add the VPN route. I ran the client in admin mode and it was able to add the route.

                              As it stands right now my laptop (10.1.0.2) is able to ping anything on 10.0.0.0/24 subnet. the issue now is nothing on 10.0.0.0/24 can ping my laptop over the VPN.

                              I have checked the firewall logs and I am no longer seeing any issues with the firewall actively blocking my ping attempts.

                              When I do a traceroute from my desktop the trace makes it to the gateway (10.0.0.1, pfSense) but stops after that.

                              C:\Users\Ian>tracert 10.1.0.2
                              
                              Tracing route to 10.1.0.2 over a maximum of 30 hops
                              
                                1    <1 ms    <1 ms    <1 ms  gateway.solignis.com [10.0.0.1]
                                2     *        *        *     Request timed out.
                                3     *        *        *     Request timed out.
                                4     *        *        *     Request timed out.
                                5     *        *        *     Request timed out.
                              
                              

                              Here is the ping test from my desktop (10.0.0.101);

                              C:\Users\Ian>ping 10.1.0.2 -t
                              
                              Pinging 10.1.0.2 with 32 bytes of data:
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              Request timed out.
                              
                              

                              Here is the traceroute from my laptop when connected to the VPN;

                              C:\WINDOWS\system32>tracert 10.0.0.101
                              
                              Tracing route to SPACECRATE [10.0.0.101]
                              over a maximum of 30 hops:
                              
                                1    99 ms    57 ms    52 ms  10.1.0.1
                                2    54 ms    53 ms    63 ms  SPACECRATE [10.0.0.101]
                              
                              Trace complete.
                              
                              

                              Here is the ping test from my laptop when connected to the VPN;

                              C:\WINDOWS\system32>ping 10.0.0.101
                              
                              Pinging 10.0.0.101 with 32 bytes of data:
                              Reply from 10.0.0.101: bytes=32 time=65ms TTL=127
                              Reply from 10.0.0.101: bytes=32 time=68ms TTL=127
                              Reply from 10.0.0.101: bytes=32 time=51ms TTL=127
                              Reply from 10.0.0.101: bytes=32 time=50ms TTL=127
                              
                              Ping statistics for 10.0.0.101:
                                  Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
                              Approximate round trip times in milli-seconds:
                                  Minimum = 50ms, Maximum = 68ms, Average = 58ms
                              
                              

                              I have attached my current firewall rules.

                              WAN.png_thumb
                              WAN.png
                              LAN.png
                              LAN.png_thumb
                              VPN.png
                              VPN.png_thumb

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                              • DerelictD
                                Derelict LAYER 8 Netgate
                                last edited by

                                Check the firewall on your laptop.

                                In most cases, the assets on the main, server LAN will not have to make connections to 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)

                                1 Reply Last reply Reply Quote 0
                                • D
                                  doktornotor Banned
                                  last edited by

                                  Disable the goddamn Windows "firewall" before testing.

                                  1 Reply Last reply Reply Quote 0
                                  • M
                                    MisterIX
                                    last edited by

                                    Hello ianc1215, I'm also stuck with the OpenVPN connected but unable to ping any hosts or gateways. You wrote:

                                    I found out what I was going wrong with the firewall. There was no explicit allow all so if it did not match it blocked it.

                                    Could you specify closer for which interface you created this rule? I checked my rooting on the host already and it should work.

                                    Kind regards, MisterIX.

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                                    • S
                                      solignis
                                      last edited by

                                      @doktornotor:

                                      Disable the goddamn Windows "firewall" before testing.

                                      Sigh…. I disabled the Windows firewall and it worked. I have never had trouble with it in the past I wonder why now.

                                      Anyhow thanks everyone for the help.

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                                      • D
                                        doktornotor Banned
                                        last edited by

                                        Because the crappy thing blocks ping from anything but the subnet it's currently on by default… Source of immense waste of time.

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                                        • S
                                          solignis
                                          last edited by

                                          @MisterIX:

                                          Hello ianc1215, I'm also stuck with the OpenVPN connected but unable to ping any hosts or gateways. You wrote:

                                          I found out what I was going wrong with the firewall. There was no explicit allow all so if it did not match it blocked it.

                                          Could you specify closer for which interface you created this rule? I checked my rooting on the host already and it should work.

                                          Kind regards, MisterIX.

                                          I needed to make allow all rules on both the OpenVPN and LAN interfaces. The way that the firewall works is block all traffic that does not match. Well once you run out of rules any traffic gets kicked to the curb. However once you have had all of your traffic go through the block rules you setup generally there is a rule at the end that allows all traffic that made it that far to go on through. I was missing that, once I added it the firewall was no longer getting in the way.

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                                          • DerelictD
                                            Derelict LAYER 8 Netgate
                                            last edited by

                                            Except that's not how it works.

                                            In general, once traffic is allowed into an interface it is allowed out without specific rules on the outbound interface.

                                            This is the case unless you have specified floating rules on an interface with a direction of any or out.

                                            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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