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    Streaming video over LTE

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    • Aldo Castro FreireA
      Aldo Castro Freire
      last edited by

      Nevermind As long as the setup is fine, the rtsp will send it using the LTE.
      PS: you need to connect your local machine to the VPN also.

      Now my question is: is this the order I must follow To allow streaming over LTE I have to connect to the VPN and then start streaming ? is there a way to set up a script to activate like a minute after LTE connection is established to connect to the VPN and then start streaming. Otherwise, if I start streaming before I connect to the VPN it won't work. ? if so is there documentation on how to write a service?

      tomT 1 Reply Last reply Reply Quote 0
      • Chad SweetC
        Chad Sweet ModalAI Team
        last edited by

        It's a standard Linux service, take a look at the voxl-modem service for an example

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        • tomT
          tom admin @Aldo Castro Freire
          last edited by

          @Aldo-Castro-Freire The services that we use to start LTE and VPN on bootup are voxl-modem, as Chad mentioned, voxl-time-sync which is a simple script which loops until the date / time is correct, meaning a connection to the internet has been established, and voxl-vpn, which will then start the OpenVPN service after voxl-time-sync has finished.

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          • Aldo Castro FreireA
            Aldo Castro Freire
            last edited by

            Does voxl-vpn works with the new version of openvpn because I update mine to the 2.4.6

            Also is this a service? Or does voxl-vpn sets up the service as voxl-configure-modem does? I haven't seen anu documentation for voxl-vpn.

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            • tomT
              tom admin
              last edited by

              voxl-vpn is just a wrapper for calling OpenVPN, it's not required, you can use OpenVPN on its own. We haven't tested with 2.4.6 but I don't see why it wouldn't work. All you should need to do is modify the key path in the service file.

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              • Aldo Castro FreireA
                Aldo Castro Freire
                last edited by

                Okay. So basically use voxl-modem.service as a sample and exec voxl-vpn instead voxl-modem-start.sh .And start this service after voxl-modem.service

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                • tomT
                  tom admin
                  last edited by

                  All the voxl-modem.service does is call voxl-modem-start.sh.

                  So what I would recommend and what works for us is:

                  Start voxl-modem service -> Gets LTE connection up and running
                  Start voxl-time-sync sevice -> Verifies connection to internet
                  Start vpn-start service -> Connects to VPN

                  If you have all three of these enabled they should start at the correct times to get you going.

                  tomT 1 Reply Last reply Reply Quote 0
                  • tomT
                    tom admin @tom
                    last edited by

                    @tom OpenVPN will fail if the date / time is not set correctly, that is why we use voxl-time-sync to have OpenVPN wait until the date / time is correct. This sometimes takes a couple seconds after the modem has connected to the network

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                    • Aldo Castro FreireA
                      Aldo Castro Freire
                      last edited by Aldo Castro Freire

                      Is there a command called vpn-start? I cannot find it in my voxl. Or should I make a script that opens the vpn?

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                      • tomT
                        tom admin
                        last edited by tom

                        vpn-start is a service file that you can find at /etc/systemd/system/vpn-start.service. You can modify the KEY_FILE parameter with the path to your OpenVPN key file and enable the service using systemctl enable vpn-start.

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                        • Aldo Castro FreireA
                          Aldo Castro Freire
                          last edited by

                          Hi is there an easy way to open and read a file in Voxl such as nano and vim ?? it is a pain to have to transfer files between machines

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                          • tomT
                            tom admin
                            last edited by

                            Yes you can use vi on VOXL

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