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    Echo Reply (ICMP) necessary for OpenVPN client to work?

    Scheduled Pinned Locked Moved OpenVPN
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    • JKnottJ Offline
      JKnott @noplan
      last edited by

      @noplan

      ????

      Netbios has nothing to do with ping or OpenVPN.

      PfSense running on Qotom mini PC
      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
      UniFi AC-Lite access point

      I haven't lost my mind. It's around here...somewhere...

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      • johnpozJ Online
        johnpoz LAYER 8 Global Moderator
        last edited by

        Yeah the supporting netbios setting in the vpn settings would have nothing to do with the client connecting.

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

        noplanN 1 Reply Last reply Reply Quote 0
        • jimpJ Offline
          jimp Rebel Alliance Developer Netgate @wifimasters
          last edited by

          @wifimasters said in Echo Reply (ICMP) necessary for OpenVPN client to work?:

          Netcat test from these 3 locations shows client can reached port 1194/UDP but not ping.

          What kind of test exactly? Netcat will always report success for UDP no matter what. Even for closed/firewalled ports. You can't test UDP that way. And OpenVPN won't send a banner so you can't check for a test reply either.

          I bet they can't actually reach the server for one reason or another.

          Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

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          • W Offline
            wifimasters @johnpoz
            last edited by

            @johnpoz thanks for the response. Is there any specific port/protocol needs to be open or anything for them to investigate at?

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            • W Offline
              wifimasters @jimp
              last edited by

              @jimp thanks for your response. I thought 1194/UDP was blocked so I switched to 443/TCP and all results are the same. I tried to open up web services (port forward) and see if these 3 users/location can access and yes, they can access ports 80 & 8081.

              I have the pcap file captured while the client is attempting to contact the access server. Can it be uploaded here for review? Currently these users are temporarily using remote displays (Teamviewer or Anydesk) which is very slow.

              thanks.

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              • jimpJ Offline
                jimp Rebel Alliance Developer Netgate
                last edited by

                Packet capture wouldn't be helpful, really. The OpenVPN client log and OpenVPN server log would most likely have anything you'd need.

                Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

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                • noplanN Offline
                  noplan @johnpoz
                  last edited by

                  @johnpoz & @johnpoz
                  true ad netbios my fault spped reading gone wrong ;(
                  sorry

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                  • W Offline
                    wifimasters @jimp
                    last edited by

                    @jimp I left the user location already and only left with 1 vpn client log, mostly I got are pcap files. I have attached and let me know your thought. thank you.OpenVPN_client_Netgate_Forum.txt

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                    • johnpozJ Online
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)

                      This says you couldn't connect.. See how it says check network connectivity..

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                      • jimpJ Offline
                        jimp Rebel Alliance Developer Netgate
                        last edited by

                        Unfortunately that error from the client side is pretty generic. The server log would have better information. (And if there are no entries in the server log from their connection attempts, then they are definitely not connecting to the OpenVPN instance on the server side...)

                        Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

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                        • johnpozJ Online
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          ^ true.. the log on the server will show if server is seeing any connection attempt at all..

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                          • W Offline
                            wifimasters @jimp
                            last edited by

                            @jimp let me dig the server logs corresponding to the date/time of the client. thanks

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                            • W Offline
                              wifimasters @wifimasters
                              last edited by

                              @wifimasters GUI logs is only 2000 lines maximum I can't dig longer. Actual log also the same.

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                              • RicoR Offline
                                Rico LAYER 8 Rebel Alliance
                                last edited by

                                Crank up the logfilter:
                                pfsense_log-quantity.png

                                -Rico

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                                • W Offline
                                  wifimasters @Rico
                                  last edited by

                                  @Rico thanks mate! will try this.

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