3G USB Failover script

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











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I am looking for help with something because I have no idea even where to start and I am really new with linux still and Wish to create a script that I can run that will do the following.
First I will watch eth0 on my Raspberry pi running debian.
If eth0 is down then it will use sakis3g to make a ppp connection with a mobile network. While this is up it must still ping over eth0 and if eth0 is back up it must then disconnect from ppp and only use eth0 till eth0 is down again. From my understanding I need to use routing but I have no idea how to do any of this or even where to start. Could someone please help me out. This script needs to run 24/7.




linux 3g




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    up vote
    0
    down vote

    favorite












    Good day.



    I am looking for help with something because I have no idea even where to start and I am really new with linux still and Wish to create a script that I can run that will do the following.
    First I will watch eth0 on my Raspberry pi running debian.
    If eth0 is down then it will use sakis3g to make a ppp connection with a mobile network. While this is up it must still ping over eth0 and if eth0 is back up it must then disconnect from ppp and only use eth0 till eth0 is down again. From my understanding I need to use routing but I have no idea how to do any of this or even where to start. Could someone please help me out. This script needs to run 24/7.




    linux 3g




    share|improve this question





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Good day.



      I am looking for help with something because I have no idea even where to start and I am really new with linux still and Wish to create a script that I can run that will do the following.
      First I will watch eth0 on my Raspberry pi running debian.
      If eth0 is down then it will use sakis3g to make a ppp connection with a mobile network. While this is up it must still ping over eth0 and if eth0 is back up it must then disconnect from ppp and only use eth0 till eth0 is down again. From my understanding I need to use routing but I have no idea how to do any of this or even where to start. Could someone please help me out. This script needs to run 24/7.




      linux 3g




      share|improve this question











      Good day.



      I am looking for help with something because I have no idea even where to start and I am really new with linux still and Wish to create a script that I can run that will do the following.
      First I will watch eth0 on my Raspberry pi running debian.
      If eth0 is down then it will use sakis3g to make a ppp connection with a mobile network. While this is up it must still ping over eth0 and if eth0 is back up it must then disconnect from ppp and only use eth0 till eth0 is down again. From my understanding I need to use routing but I have no idea how to do any of this or even where to start. Could someone please help me out. This script needs to run 24/7.





      linux 3g





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      asked Jun 6 at 11:12









      Martinn Roelofse

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