Sniffing GPRS

canarion dani.martinezroca at gmail.com
Thu Feb 9 17:42:20 UTC 2012


Thank you. 

I applied the solution, but I can't be able to capture GPRS, obtaining the
next output: 

root at bt:~/Desktop/gprs/osmocom-bb/src# ./host/layer23/src/misc/ccch_scan -a
530 
Copyright (C) 2010 Harald Welte <laforge at gnumonks.org>
Contributions by Holger Hans Peter Freyther 

License GPLv2+: GNU GPL version 2 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. 
There is NO WARRANTY, to the extent permitted by law. 

Failed to connect to '/tmp/osmocom_sap'. 
Failed during sap_open(), no SIM reader 
<0001> app_ccch_scan.c:105 SI1 received. 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4269931095) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4202774177) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4286702193) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(872678026) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214040106539517) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3783462071) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075526476063) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3414382957) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3833791687) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(1409475324) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(268475078) 
<0001> app_ccch_scan.c:451 PAGING of type 3 is not implemented. 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(939892912) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3246520066) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3850427223) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3900711156) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075504876609) 
<0001> app_ccch_scan.c:451 PAGING of type 3 is not implemented. 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3263284250) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4051765433) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075526476063) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3347308031) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3263371063) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3984668881) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(268475078) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4202767825) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3749719268) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3951101257) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4169171856) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4202730769) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3330357239) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3481285555) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xaa9e80ed) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xe10b81f4) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214075531810633) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x255783cf) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x1f1181dc) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(604556062) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214072000891299) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(872678026) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4051765433) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3464558834) 
<0001> app_ccch_scan.c:451 PAGING of type 3 is not implemented. 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x8f0883e8) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xefc90050) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3347308031) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(1342251192) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4236303009) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x7310734) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xb1b280f4) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3263371063) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3984668881) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xfa970654) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x50f783f5) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3749719268) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(134639596) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3951252283) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075526302987) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4202730769) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xcfec80ce) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x3e74042c) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3330357239) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3515047757) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(738711998) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x2aec80e1) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xe10b81f4) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214075531810633) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3581947292) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3464558834) 
<0001> app_ccch_scan.c:451 PAGING of type 3 is not implemented. 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xe7c781eb) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xefc90050) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3900901519) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3498307992) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3817066073) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4236303009) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x1f2f83e3) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xb1b280f4) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(872886535) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3380617244) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(1275217371) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3867157627) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x9fa80fc) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x50f783f5) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(1409718266) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xa6a50744) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xec6f0608) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214070617536649) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075517512698) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214250001000819) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3464555727) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(671523743) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3515047757) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(738711998) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3783322666) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3833642850) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3951258957) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3581984922) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3951151079) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(1342205199) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3380616628) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x970783d5) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x1f2f83e3) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214075507399140) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3380617244) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3783522049) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3867157627) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4236311049) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(1141351846) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075517512698) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3967861041) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(671523743) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3900911398) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3347267645) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3733188761) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214070611052851) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3951258957) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(671550778) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3632528289) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x520b0528) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0xf6d0050) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214074612008401) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0xd20e0150) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x470a83ea) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to tmsi
M(3380616628) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4068523561) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214075507399140) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(134788057) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3380861225) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3548434234) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3967861041) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3900911398) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3900747386) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3967871191) 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x92a580cc) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x99f083de) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214075501857562) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214070611052851) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214040106836804) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(671550778) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3548640369) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3364053752) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to imsi
M(214074612008401) 
<0001> app_ccch_scan.c:451 PAGING of type 3 is not implemented. 
<0001> app_ccch_scan.c:400 Paging1: Normal paging chan tch/f to TMSI
M(0x498c80c5) 
<0001> app_ccch_scan.c:403 Paging2: Normal paging chan tch/f to TMSI
M(0x29be80f2) 
<0001> app_ccch_scan.c:426 Paging3: Normal paging chan n/a  to imsi
M(214075502723259) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(134788057) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(4135830880) 
<0001> app_ccch_scan.c:360 Paging1: Normal paging chan tch/f to tmsi
M(3380861225) 
<0001> app_ccch_scan.c:248 GSM48 IMM ASS (ra=0x7e, chan_nr=0x0c, HSN=59,
MAIO=3, TS=4, SS=0, TSC=5) 
Dropping frame with 64 bit errors 
<000c> l1ctl.c:238 Dropping frame with 64 bit errors 
Dropping frame with 56 bit errors 
<000c> l1ctl.c:238 Dropping frame with 56 bit errors 
<0012> ../../../src/gsm/lapd_core.c:1452 I frame response not allowed 
<0012> ../../../src/gsm/lapd_core.c:383 sending MDL-ERROR-IND cause 12 
<0012> ../../../src/gsm/lapdm.c:392 sending MDL-ERROR-IND 12 
<0000> rslms.c:137 unknown RSLms msg_discr 0x00 
<0012> ../../../src/gsm/lapd_core.c:1452 I frame response not allowed 
<0012> ../../../src/gsm/lapd_core.c:383 sending MDL-ERROR-IND cause 12 
<0012> ../../../src/gsm/lapdm.c:392 sending MDL-ERROR-IND 12 
<0000> rslms.c:137 unknown RSLms msg_discr 0x00 
<0012> ../../../src/gsm/lapd_core.c:1452 I frame response not allowed 
<0012> ../../../src/gsm/lapd_core.c:383 sending MDL-ERROR-IND cause 12 
<0012> ../../../src/gsm/lapdm.c:392 sending MDL-ERROR-IND 12 
<0000> rslms.c:137 unknown RSLms msg_discr 0x00 
Dropping frame with 48 bit errors 

Osmocom didn't create any burst file, someone know why occurs it? I've
executed it on Backtrack 5 over VMWare. 

If someone knows what is the problem, please tell me. 

Thanks in advance. 

Cheers, 
Dani 

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