[A51] Osmocom options and workflow

Bhaskar11 niceguy108 at gmail.com
Fri Aug 31 11:08:19 CEST 2012


I've been studying the OsmocomBB documentation, but cannot find any clear 
mechanism for interfacing with Kraken. Can you give some guidelines, or is 
there any article that I have missed?


----- Original Message ----- 
From: "Karsten Nohl" <nohl at virginia.edu>
To: "A51 List" <a51 at lists.reflextor.com>
Sent: Friday, August 31, 2012 11:37 AM
Subject: Re: [A51] Osmocom options and workflow


> Hello,
>
> On Aug 31, 2012, at 7:23 , Bhaskar11 wrote:
>
>> Thanks for your prompt reply.
>>
>> If I understand right, earlier the workflow used to be:
>>     USRP -> GNURadio ->Airprobe (Parse) -> Kraken -> Airprobe (decode)
>>
>> Now the workflow is:
>>     MotorolaC1xx -> OsmocomBB -> Airprobe (Parse) -> Kraken -> Airprobe 
>> (decode)
>
> Osmocom can do everything that Airprobe does, so Airprobe is not needed 
> anymore.
>
>> Can you please confirm or correct.
>>
>> I've read the Osmocom/Sysmocom documentation, but could not figure out 
>> what is the best phone option on Sysmocom shop for my use:
>>     Do I need the Motorola C1xx with filter rework?
>
> Not necessarily. Filter removed helps you sniff the uplink communication 
> from a larger distance. Downlink is much more interesting for the 
> beginning, though.
>
>>     Do I need C1xx with Calypso chipset?
>
> All Osmocom-capable phones, incl. C1xx, are built around a Calpso chip.
>
> Cheers,
>
>     -Karsten
>
>
>> It will be very helpful if you can suggest.
>>
>> B.
>>
>>
>> ----- Original Message -----
>> From: "Karsten Nohl" <nohl at virginia.edu>
>> To: "A51 List" <a51 at lists.reflextor.com>
>> Sent: Thursday, August 30, 2012 5:06 PM
>> Subject: Re: [A51] Advice needed for Ettus Hardware
>>
>> > Hi there,
>> >
>> > There has been little development of GSM tools for USRP the past two 
>> > years. The USRP 1 and 2 (and possibly others supported by GnuRadio) can 
>> > intercept a few adjacent GSM channels and - using the Airprobe tools - 
>> > decode some of this data.
>> >
>> > The same capabilities can be had with a handful of Osmocom-capable 
>> > handsets at a fraction of the price (ie, at the sysmocom web shop). All 
>> > recent development of tools has concentrated on the Osmocom platform.
>> >
>> > One exception may be BTS emulators with OpenBTS - the most popular - 
>> > still running on USRP (or custom hardware by RangeNetworks). Sylvain 
>> > Munaut already showed the possibility of using an Osmocom phone as a 
>> > base station, though, so this may become available at some point.
>> >
>> > Cheers,
>> >
>> >    -Karsten
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