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Ivan Kluchnikov Ivan.Kluchnikov at fairwaves.ruHi Joe, If you use UmDESK, osmo-trx, osmo-bts, osmo-nitb and osmo-sgsn should be already installed. So you should use following manual: === Build & Install === [osmo-pcu] git clone git://git.osmocom.org/osmo-pcu cd osmo-pcu/ git checkout sysmocom/master autoreconf -i ./configure --enable-sysmocom-bts make cd .. [openggsn] git clone git://git.osmocom.org/openggsn.git cd openggsn/ autoreconf -i ./configure make sudo make install cd .. === Configuration === [openggsn configuration] Copy ggsn.conf to /etc directory [sgsn configuration] Copy osmo_sgsn.cfg to openbsc/openbsc/src/gprs directory [Network configuration] # We use eth0 interface for connection to the internet, if you use other interface, you should edit fourth line. sudo tunctl sudo ifconfig tap0 127.0.0.2 up sudo echo 1 > /proc/sys/net/ipv4/ip_forward sudo iptables -A POSTROUTING -s 10.0.254.0/24 -t nat -o eth0 -j MASQUERADE [OpenBSC configuration] Add this to the network/bts node in openbsc.cfg: gprs mode gprs gprs routing area 0 gprs cell bvci 2 gprs nsei 101 gprs nsvc 0 nsvci 101 gprs nsvc 0 local udp port 23030 gprs nsvc 0 remote udp port 23000 gprs nsvc 0 remote ip 127.0.0.1 Allocate some timeslots to packet data (recommend to use at least 4 timeslots for gprs). For this, just change network/bts/trx/timeslot nodes using : phys_chan_config PDCH === Start === 1. ggsn 2. sgsn 3. pcu 4. osmo-nitb 5. osmo-bts 6. osmo-trx 2014-05-13 14:11 GMT+04:00 Joe Ge <jijo123789 at gmail.com>: > > Hi All, > > I have installed OpenBSC +Osmo-BTS following Osmocom's netwrok from scratch > link http://openbsc.osmocom.org/trac/wiki/network_from_scratch > Now I would like to implemenet GPRS facility in the testbedusing OpenGGSN > and Osmo-SGSN. > > I am using fairwaves UmDESK for this implementation. > > I followed the procedure as suggested in the > http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS > with the added modification as suggested in > https://wush.net/trac/rangepublic/wiki/fairwaves.gprs > > But this doesn't seem to work out. > > Currently the systems execute properly with the following outputs > > GGSN Output: > > root at nist:/home/nist# ggsn > cmdline_parser_configfile > listen: 127.0.0.1 > conf: /etc/ggsn.conf > fg: 1 > debug: 1 > qos: 0x0b921f > apn: internet > net: 192.168.0.0/24 > dynip: 192.168.0.0/24 > pidfile: /var/run/ggsn.pid > statedir: /var/lib/ggsn/ > timelimit: 0 > gtpclient: Initialising GTP tunnel > openggsn[3822]: GTP: gtp_newgsn() started > Creating tun interface > Setting tun IP address > > Osmo-SGSN Output: > root at nist:/home/nist# osmo-sgsn -c > OpenBSC_GPRS/openbsc/openbsc/src/gprs/osmo_sgsn.cfg > <0010> gprs_ns.c:199 NSVCI=65534 Creating NS-VC > > Osmo-PCU Output: > root at nist:/home/nist# osmo-pcu > No config file: 'osmo-pcu.cfg' Using default config. > > With these I also ran: > Osmo-NITB > Osmobts-TRX > Osmo-TRX > > All of these run normally as well. > My UE is able to detect the network as well but not able to connect with it. > > Given below are the config file entries > > ggsn.conf: > listen 127.0.0.1 > > osmo-sgsn.cfg: > gtp local-ip 127.0.0.2 > ggsn 0 remote-ip 127.0.0.1 > ..... > encapsulation udp local-ip 127.0.0.2 > > open-bsc.cfg: > gprs nsvc 0 remote udp port 23000 > gprs nsvc 0 remote ip 127.0.0.2 > > I had the following doubts regarding the given installation procedure > > 1. The fairwaves.gprs implementation using Chemeris's gprs-work seems to > implement with Asterisk as PBX whereas I require it to run with the > osmo-nitb. > > 2. The gprs-work branch still makes use of BTS transceiver and I wanted it > to work with the Osmo-nitb implementation using osmobts-trx and osmo-trx > > Can somebody please help me out with this? > > Or is there any alternative implementation which can be tried to execute > them together. > > Looking forward to hearing from you, > > With Regards, > Jijo > -- Regards, Ivan Kluchnikov. http://fairwaves.ru -------------- next part -------------- A non-text attachment was scrubbed... Name: ggsn.conf Type: application/octet-stream Size: 2374 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/osmocom-net-gprs/attachments/20140513/c38caf3c/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: osmo_sgsn.cfg Type: application/octet-stream Size: 563 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/osmocom-net-gprs/attachments/20140513/c38caf3c/attachment-0001.obj>