RE: how gprs is called in openbsc, where to find the libgtb?

Libgtp is included in the openggsn source tree. You'll have to install OpenGGSN first then recompile openbsc. Binaries will be generated automatically if libgtp is found. Osmo-sgsn, osmo-nitb and openggsn are separate binaries, you need to configure and start each of them separately. Regards, Pierre From: openbsc-bounces(a)lists.osmocom.org [mailto:openbsc-bounces@lists.osmocom.org] On Behalf Of Dai H. Tran Sent: Monday, September 23, 2013 2:56 PM To: openbsc(a)lists.osmocom.org Subject: how gprs is called in openbsc, where to find the libgtb? Hello everyone, I just recently learn about openbsc, and still in the phase of compiling and try to run the osmo-nitb app. 1st problem The problem is one of my teammate said the osmo-nitb will also started/call the osmo-sgsn program, but after examine the code, I still don't know how the osmo-sgsn is called from osmp-nitb, may be I was wrong, anyone can help me with this, how can I activate osmo-sgsn from osmo-nitb, with extra arguments? 2nd problem Another question, when I try to compile osmo-sgsn, the gtp lib is missing, as define in the makefile: if HAVE_LIBGTP bin_PROGRAMS = osmo-gbproxy osmo-sgsn else bin_PROGRAMS = osmo-gbproxy endif I don't know where to get this lib, so I modified by adding osmo-sgsn to the else clause as-well to have osmo-sgsn compiled. I still can run osmo-sgsn, but it show error about the gtp socket, i think the configuration is not correct, but not because of missing gtp lib, should this be a problem? Best regards, Dai