bass

Hi, I just tried install airprobe in my ubuntu. following tutorial from http://www.rtl-sdr.com/rtl-sdr-tutorial-analyzing-gsm-with-airprobe-and-wireshark/ I have install gnuradio by build script, even until : ./go.sh capture_941.8M_112.cfile everything seems okey.. but when I moved to next step, I got: tes@tes-H67M-D2-B3:~/Downloads/airprobe/gsm-receiver/src/python$ ./gsm_receive_rtl.py -s 1e6 Traceback (most recent call last): File "./gsm_receive_rtl.py", line 22, in <module> import osmosdr ImportError: No module named osmosdr has anyone another idea where the problem might be? Thanks in advance! Bass

anyway, I have send this issue to ask.wireshark also. they said that TP-data malformed. but still confuse, how come, because i used "fresh" openbts installation and without any chnges the parameter, except gsmtap fiture. is there anyone here ever capture messge over OpenBTS before? some of tutorial I saw, could get it as plain text also without any changing on its configurations..

hi cooper, I used default configuration on my openBTS. only changing the GSMTAP config with "1" to enable wireshark for capturing the openbts packets. here is its pcap file : https://drive.google.com/open?id=0B2PfFt7P5kAgcjJaQUNBeVFuMGM&authuser=0 hi digip, what I know is openbts run on 2G not 3G. then, open encryption also optional, in this case my configuration is "GSM.Cipher.Encrypt 0" (default, without encryption).

this is the print screen.. thnks

Hi, I just try to capture GSMTAP packets from my OpenBTS. unfortunately I could not get SMS content as plain text. anybody know how to figure out this problem? some sources said with standart wireshark they could get content sms in plain text. I had tried to copy its hex stream and decode with 7bit encoder which was provided online, but the result was same, I got nothing. Many Thanks, Bass