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  1. #1
    Robert Dodier
    Guest
    Hi,

    I have a Sprint cellular modem. Is there a way to determine its
    current
    IP address given the phone number? The device is in a remote location
    so I don't have an computer wired into its local network from which I
    could check the IP address.

    Sprint csr claims it can't be done; I'm just looking for a 2nd
    opinion.

    All the best, & thanks for your help.

    Robert Dodier



    See More: How to look up IP address given phone number (Sprint cellular modem)



  2. #2
    Larry
    Guest

    Re: How to look up IP address given phone number (Sprint cellular modem)

    Robert Dodier <robert.dodier@gmail.com> wrote in news:409e361a-948c-4b49-
    8908-3f4e3a3bf63e@a19g2000pra.googlegroups.com:

    > Hi,
    >
    > I have a Sprint cellular modem. Is there a way to determine its
    > current
    > IP address given the phone number? The device is in a remote location
    > so I don't have an computer wired into its local network from which I
    > could check the IP address.
    >
    > Sprint csr claims it can't be done; I'm just looking for a 2nd
    > opinion.
    >
    > All the best, & thanks for your help.
    >
    > Robert Dodier
    >


    Sprint csr would be right. EVERY time the phone connects it is given a
    different IP address, even if it has been offline for 5 seconds. I've
    never seen any sellphone data link that works differently. They do this
    just to make sure you have no way of running any kind of data server on it,
    calling it from a remote location like you're dreaming of.

    It has no IP address UNTIL someone uses the modem to access the net from
    the computer calling the modem.....or tethered phone.....or any other way
    to get online through the sellphone service data. It acts just like a PPP
    link, reconnecting after very short periods of inactivity and being
    assigned a new IP each time. As soon as it sets in DORMANT mode for X
    seconds, it's dumped off until you click something and it reconnects
    already logged on, again. The Rolling IPs prevent actual calling it as
    it's not just sitting connected all the time.

    IP roulette drives my bank's online accounting system crazy.....




  3. #3
    Robert Dodier
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    On Oct 20, 7:57 pm, Larry <no...@home.com> wrote:

    > Sprint csr would be right. EVERY time the phone connects it is given a
    > different IP address, even if it has been offline for 5 seconds. I've
    > never seen any sellphone data link that works differently. They do this
    > just to make sure you have no way of running any kind of data server on it,
    > calling it from a remote location like you're dreaming of.


    FWIW the IP address was (over a period of months) stable for days
    at a time, and we were connecting into the device at will.
    I'm just trying to restore it to that previous, happy state.

    Incidentally, we initially tried Cingular, which doesn't allow
    incoming
    connections, and so we had to switch to Sprint, which does.

    Robert Dodier



  4. #4
    Andreas Wenzel
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    Robert Dodier wrote:
    > [...]
    > FWIW the IP address was (over a period of months) stable for days
    > at a time, and we were connecting into the device at will.
    > I'm just trying to restore it to that previous, happy state.
    > [...]


    Could a dynamic DNS service like dyndns.org be a workaround for you?

    Andreas



  5. #5
    Robert Dodier
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    On Oct 21, 11:09 am, Andreas Wenzel <awspambuc...@gmx.de> wrote:

    > Could a dynamic DNS service like dyndns.org be a workaround for you?


    Actually, we have a computer on the local network of the router
    (TopGlobal) to which the Sprint cellular modem is attached,
    which was issuing requests via inadyn to change the ip address
    associated with a symbolic name. But that computer is down,
    so the symbolic address resolves to an old ip address, not the
    current one.

    Robert Dodier




  6. #6
    Andreas Wenzel
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    Robert Dodier wrote:

    > Actually, we have a computer on the local network of the router
    > (TopGlobal) to which the Sprint cellular modem is attached,
    > which was issuing requests via inadyn to change the ip address
    > associated with a symbolic name. But that computer is down,
    > so the symbolic address resolves to an old ip address, not the
    > current one.


    What TopGlobal model are you using? Some of them (e.g. the MB6800) have
    built in dyndns functionality, so you do not necessarily need a PC to do
    the updating.

    Andreas



  7. #7
    Robert Dodier
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    On Oct 22, 12:51 pm, Andreas Wenzel <awspambuc...@gmx.de> wrote:

    > What TopGlobal model are you using? Some of them (e.g. the MB6800) have
    > built in dyndns functionality, so you do not necessarily need a PC to do
    > the updating.


    Yes, I think it is MB6800 and it does have the built-in dyndns
    function.
    There was some reason that we aren't using it; I think there is a
    statement on the dyndns.com website to the effect that it's preferable
    to have a separate host do it --- I forget the reasoning. But given
    the
    difficulties we are having, maybe we should go ahead and have the
    router do the dns update. I'll look into it again.

    Robert Dodier



  8. #8
    merena
    Guest

    Re: How to look up IP address given phone number (Sprint cellularmodem)

    I think the problem should be settled by sprint, you can get in touch
    with sprint ,then they may be give you an advice. could i invited
    somebody here to visit www.gizmograbber.com ,a friend introduce me
    this web page



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