OpenBSC

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16 participants
4247 discussions

Re: bs11 not working
by Dieter Spaar 02 Dec '10

02 Dec '10

Hello Sylvain, On Thu, 2 Dec 2010 15:20:07 +0100, "Sylvain Munaut" <246tnt(a)gmail.com> wrote: > > The clock of the non working one might just be too off ... > > See http://openbsc.osmocom.org/trac/wiki/isdnsync for a tool to > calibrate (with appropriate HW). > > If you don't have the equipement ... huh, good luck. > You can always try random values until it works. > If you have a USRP you can try to lock onto it and compare offset ... Its possible to set the clock calibration to a fixed value, this was a feature introduced a while ago. The original clock calibration setting workes pretty good, at least from my experience. So if the clock is off due to using the E1 clock as a reference, it should be enough to set the orginal clock calibration value and switch the PLL to standalone mode. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

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Free Software GSM Talk in Berlin on Dec. 9th
by Ali Gündüz 02 Dec '10

02 Dec '10

Hello all, I'm going to be giving a presentation about free software GSM implementations at the FSFE's Berlin meeting on December 9th, 2010. It will be very elementary and newcomer-friendly. I'm planning to go over OsmocomBB, OpenBTS and OpenBSC, and discuss their security and practical implications. The talk will start at 19:30 in Newthinking Store Tucholskystr. 48, 10117 Berlin. You can find more about it on http://aligunduz.org/blog/free_gsm_talk_next_week.html Considering I'm not an expert on GSM myself, it would be nice to have people more familiar with it in attendance. Ali Gündüz

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Re:socket problem again
by jason mercury 02 Dec '10

02 Dec '10

On 12/01/2010 05:10 PM, Holger Hans Peter Freyther wrote >* we still use the global bsc_gsmnet in many places. We need to remove that to *>* allow something like this.* Is it a too much difficult process? Should i try to do this and where should i start? On 12/01/2010 05:07 PM, Sylvain Munaut wrote: * >That's an option. See nv_put_prim_oml in ipaccess-config.c* I think this is for changing the port of nanoBTS. Where should i modify the port for bsc_hack? Thanks. Jason ** * *

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bs11 not working
by Thomas Ansorg 02 Dec '10

02 Dec '10

hi my 2nd bs11 doesnt work. the boot screen from bs11_config looks like this(attached pic). both boot screens look like that, the operational one too. the 2 bs11 are connected identical, the software is the same. one works, the other doesnt. bad! the bootstrapping works on both, but the handy can only detect the one of two bs11. troubleshooting advices are welcome, openbsc website was no help T. -- Wer Rechtschreibfehler findet, darf sie behalten!

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GPRS Problem
by Stuart Baggs 02 Dec '10

02 Dec '10

Hi, I am openBSC version 0.9.11.92-6d42 and I have compiled open-ggsn and the osmo-sgsn binary has been built when i recompiled openBSC. Now here is the problem. The GPRS indicator on the handset lights up, but no GPRS data passes. I have the following config files: ---------/etc/ggsn.conf--------- # TAG: listen # Specifies the local IP address to listen to listen 192.168.1.70 # TAG: dynip # Dynamic IP address pool. # Used for allocation of dynamic IP address when address is not given # by HLR. # If this option is not given then the net option is used as a substitute. dynip 192.168.254.0/24 # TAG: pcodns1/pcodns2 # Protocol configuration option domain name system server 1 & 2. pcodns1 208.67.222.222 pcodns2 208.67.220.220 -------------------------------- ---------/etc/ggsn.conf--------- ! ! Osmocom SGSN configuration ! ! line vty no login ! sgsn gtp local-ip 192.168.1.80 ggsn 0 remote-ip 192.168.1.70 ggsn 0 gtp-version 1 ! ns timer tns-block 3 timer tns-block-retries 3 timer tns-reset 3 timer tns-reset-retries 3 timer tns-test 30 timer tns-alive 3 timer tns-alive-retries 10 encapsulation udp local-ip 192.168.1.60 encapsulation udp local-port 23000 encapsulation framerelay-gre enabled 0 ! bssgp ! -------------------------------- I have setup the server to have 4 virtual addresses: 192.168.1.50, 192.168.1.60, 192.168.1.70, 192.168.1.80. When I start the ggsn and do a route -n it shows thats tun0 is up with the ip range 192.168.0.0/24. I have specified it to be 192.168.1.254 via the dynip argument in the /etc/ggsn.conf file. I have setup iptables to NAT eth0 so no issues there. Thanks Stuart

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nanoBTS Ports
by Stuart Baggs 02 Dec '10

02 Dec '10

Hi, I am trying to punch a nanoBTS through a firewall to an instance of openBSC over layer3. I have opended TCP port 3002 (OML) and TCP port 3003 (RSL) but no green light or any traffic captured with tcpdump. Any ideas? I havent changed the default port on the bts.

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bs11 power setting
by Thomas Ansorg 01 Dec '10

01 Dec '10

hello one of my bs11 ist set to 30mw, the other one to 2w, bs11_config told me. this is to much. how do i get the 2nd downto 30mw? T. -- Wer Rechtschreibfehler findet, darf sie behalten!

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socket problem again
by jason mercury 01 Dec '10

01 Dec '10

Hi , Here i want to restate my problem. I want to run two different bts with different network parameters on the same PC, at the same time. I can not achieve this with one bsc_hack because bsc has a unique mnc. I can not run two bsc_hack at the same time because they try to use the same port. I think that there might be two approaches to solve this: 1) Modifying the code such that i can specify different mnc for each bts with one executable program. Maybe, two different gsm network can be defined as network1 and network2 (similar to bts0,bts1,...). So i can give different network parameters for different networks and run them with one program. 2) Changing the communication port of nanoBTS and OpenBSC such that i can run two bsc_hack at the same. I think that it should be changed on both nanoBTS and source code. Could any one help me (at least give some hints) about how i can implement one of these approaches. Or, You could propose some other approaches. Thank you. Jason

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USRP, nanobts
by Seungju Kim 01 Dec '10

01 Dec '10

Hello. Is anybody interested in trading nanobts for openbts testing kit? I want to do some experiments with openbsc, but I have openbts testing kit. I will be interested in trading for bs-11 as well. Please send an email to manatails007 at gmail dot com for further details Sincerely, Sent from my iPhone

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socket problem
by jason mercury 30 Nov '10

30 Nov '10

Hi again, Is it possible to define a different port for second bts and bsc. Or, can i modify the source code such that i can run two different network with one program? Jason

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