"Hotswap" USB Cell Modem?



  • I have a setup with I would like to periodically plug in a USB cell modem for additional bandwidth.  However, if the USB modem is removed, and the system rebooted, none of the interfaces come up and I need to reconfigure via the console.

    From what I have read, there are security issues with the undefined network interface, so you need to go back through a full reconfig  via the console.

    I am just wondering if there is any way to set this up so that the cell modem can be plugged in/pulled out, and added to for load balencing as needed.

    Admins, if this is the wrong forum, please move.  I apologize if I have missed something.  I have been reviewing forum posts for a few days and not found a solution.

    Thank you!



  • This thread seems to discuss this behavior, but I am hoping there is some way around it

    https://forum.pfsense.org/index.php?topic=50900.0

    Thank you!


  • LAYER 8 Netgate

    It looks like this question has been pretty much definitively answered in the thread you already found.

    As far as I know nothing has changed in this regard since then. Interfaces are assigned a place in the configuration. Changes to what is where triggers an interface reassignment procedure on startup.



  • Thanks.

    Yes.  Purchased a support ticket and was told to purchase a cell modem that used ethernet rather than usb.  I was trying to migrate from a peplink multi-wan router.  I guess I could use it as a front end to the pfSense box if I want to continue down this path.

    Thank you.


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