Getting Sprint 341u modem working



  • I work from home and lose internet a couple times per month. Currently I've been using my phone hotspot to work through these down times, but would like to do something more automated.

    I bought a Spring 341u usb modem and am wondering if anyone has gotten these to work on PFsense?

    I see drivers/etc for Ubuntu here:
    http://www.downloads.netgear.com/files/aircard/Linux-Support-S2.13N2.25.zip

    but I don't know if these will work for PFsense as it isn't Ubuntu.

    I did a dmesg to see if it finds drivers and see:

    re2: link state changed to UP
    ugen0.2: <NETGEAR, Inc. AC341U> at usbus0
    ugen0.2: <NETGEAR, Inc. AC341U> at usbus0 (disconnected)
    ugen0.2: <NETGEAR, Inc. AC341U> at usbus0
    re1: link state changed to DOWN
    ugen0.2: <NETGEAR, Inc. AC341U> at usbus0 (disconnected)
    ugen4.2: <NETGEAR, Inc. AC341U> at usbus4
    ugen4.2: <NETGEAR, Inc. AC341U> at usbus4 (disconnected)
    ugen4.2: <NETGEAR, Inc. AC341U> at usbus4

    Does this say that it see the netgear modem? I didn't see ugen0.2 or 4.2 appear in the interface list in the router, which is what I was hoping for.

    I'm hoping someone has done this before and can help me get it working.

    thanks
    david



  • After looking around a bit I think I found a solution, in case anyone else is interested.

    Cradlepoint sells several routers that support this modem. I went with the CBA750b (its cheap at $25 on EBay) so I figured not much lost to test it out.

    https://cradlepoint.com/sites/default/files/arc_cba750b_manual.pdf

    In case anyone else wants to check their own modem, as they support many modems.:

    https://cradlepoint.com/mp_finder/db/modemreport.php?products=CBA750,CBA750B,MBR95

    You can set it in IPpassthough mode with a switch on the router, so at that point it is just hooking up the ethernet port to my PFsense port and configuring it for failover. I say "just" as I have no idea how to do that either, but baby steps :)

    I'll update as I make progress in case someone cares,
    david

    P.S. - I have no affiliation with this company, never heard of them before today. I just found them while looking for an LTE modem with an ethernet port.



  • The cradlepoint works fine. Set it to IP passthrough, plugged it into an ethernet port, changed one routing rule to route my work computer to the wan_group instead for default gateway. I do no switch the default gateway on fail over.

    It fails over and back seamlessly for my pc. It screws up Ooma for some reason, but that is OK.

    So if anyone wants an LTE backup the cradlepoint makes it easy and they are quite cheap on ebay.

    thanks
    david


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