osmocom-net-gprs

osmocom-net-gprs@lists.osmocom.org

6 participants
480 discussions

[BUG][OSMO-PCU][OSMO-SGSN] GPRS and EGPRS attach procedure is not working with Kirin Modem phones

by Bipin Jaiswal

Hi, We are using Honor 7X mobile phone with Huawei Kirin modem and observed that GPRS and EGPRS attach is not working with Huawei Kirin Modem phones. There is no issue observed from OSMO-PCU. it seems either Huawei Kirin modem issue or OSMO-SGSN issue. Please check below analysis for this issue. 1- UE send attach request with IMSI and invalid MCC and MNC to SGSN. 2- SGSN send Identity Request with IMEI to UE. 3- UE responded Identity Response with IMEI to SGSN. 4- SGSN sends ATTACH ACCEPT message to SGSN with new PMTSI but UE is not responding ATTACH COMPLETE message to SGSN and resend ATTACH REQUEST message to SGSN. 5- SO SGSN re transmit ATTACH ACCEPT message to UE and after max number of re transmission , SGSN is release UE MM context. It seems that UE is not accepting ATTACH ACCEPT message. We also observed that Huawei Kirin UE is sending wrong LLC data to SGSN. UE had set more bit in RLC LME header and send invalid LLC data with 0x2B. So OSMO-PCU had forward this data to SGSN because more bit is set and SGSN is complaining LLC error for this LLC data. Please look into this issue or let us know if we have fix for this issue. Thanks, Bipin Jaiswal

6 years, 6 months

[ASK version support GPRS for USRP ]

by Dzakwan Falih

Hi semua, saya memiliki pertanyaan: 1. Versi berapa yang cocok untuk membangun layanan GPRS.? 2. bagaimana jika saya ingin menginstall GPRS pada satu host bagaimana contoh konfigurasinya, saya sudah membaca manualnya kurang paham. . Hormat Saya, [photo] Muhammad Dzakwan Falih dzakwanfalih.wordpress.com<http://dzakwanfalih.wordpress.com> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/facebook.…]<http://www.facebook.com/dzakwan.pilot> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/linkedin.…] <http://www.linkedin.com/in/muhammad-dzakwan-falih-2ab30612a/> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/twitter.p…] <http://twitter.com/Dz4kwan> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/instagram…] <http://www.instagram.com/supernode/>

6 years, 7 months

[ASK : Version for build GPRS ]

by Dzakwan Falih

Sorry, I made a mistake in posting. to be honest I am first time using the mailing list Hi all, I have a question: 1. how many Versions suitable for constructing GPRS service.? 2. What if I want to install GPRS on a single host configuration, examples of how I've been reading the manual is less familiar. Hormat Saya, [photo] Muhammad Dzakwan Falih dzakwanfalih.wordpress.com<http://dzakwanfalih.wordpress.com> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/facebook.…]<http://www.facebook.com/dzakwan.pilot> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/linkedin.…] <http://www.linkedin.com/in/muhammad-dzakwan-falih-2ab30612a/> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/twitter.p…] <http://twitter.com/Dz4kwan> [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/instagram…] <http://www.instagram.com/supernode/>

6 years, 7 months

OsmoDevCon 2019 date poll

by Harald Welte

Dear all, I would like to get your input as to when we should schedule OsmoDevCon 2019. NOTE: OsmoDevCon is our "for developers by developers" event, not to be confused with OsmoCon, our public conference. If we want to stay with the usual "Friday through Monday in April" arrangement, we have the following options: April 05-08, 2019 April 12-15, 2019 April 26-29, 2019 The one missing weekend in the list above is the easter weekend, which is probably a good idea to exclude as flights and hotels are more expensive during that time, and people might have other plans during holidays. I would like to invite anyone planning to attend the Osmocom Developer Conference 2019 to participate in the poll at https://dudle.inf.tu-dresden.de/OsmoDevCon2019/ to state their availability/preference. The Dudle only shows the first day of the four days of OsmoDevCon. Looking forward to your feedback so we can settle on a date soon. Thanks! Kind regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

6 years, 7 months

OsmoGGSN - Centos 7 Support

by Duleep Thilakarathne

Hi i am old user of openGGSN and planned to test OsmoGGSN. is it possible to compile osmoGGSN in Centos 7. is there any limitation. regards DT

6 years, 8 months

Problem with SGSN Location Update Reject during UE attach

by Lam Ngoc Tuan

Dear all We are facing the following problem and hope you can help us: - We use OSMO as UMTS core emulation, working with our real NodeB - During UE attach procedure we see from SGSN "Location Update Reject" and afterthat UE is released. - We do the comparison test with real UMTS core and our real NodeB, here it works properly, UE can attach successful. We assume there is some Osmo configuration problem but we have not found the root cause, we very appreciate if you can take a look and give us some advice. Here is the current message flow of UE attach 10.2.9.200 10.2.9.139 RANAP 170 (RUA) InitialUE-Message (DTAP) (MM) Location Updating Request 10.2.9.139 10.2.9.200 RANAP 158 SACK (RUA) DirectTransfer (DTAP) (MM) Authentication Request 10.2.9.200 10.2.9.139 RANAP 222 SACK (RUA) InitialUE-Message (DTAP) (GMM) Attach Request 10.2.9.139 10.2.9.200 RANAP 122 SACK (RUA) DirectTransfer (DTAP) (GMM) Identity Request 10.2.9.200 10.2.9.139 RANAP 118 (RUA) DirectTransfer (DTAP) (MM) Authentication Failure 10.2.9.139 10.2.9.200 RANAP 158 SACK (RUA) DirectTransfer (DTAP) (MM) Authentication Request 10.2.9.200 10.2.9.139 RANAP 154 SACK (RUA) DirectTransfer (DTAP) (GMM) Identity Response 10.2.9.139 10.2.9.200 RANAP 162 SACK (RUA) DirectTransfer (DTAP) (GMM) Authentication and Ciphering Req 10.2.9.200 10.2.9.139 RANAP 110 (RUA) DirectTransfer (DTAP) (MM) Authentication Response 10.2.9.139 10.2.9.200 RANAP 138 SACK (RUA) SecurityModeCommand 10.2.9.200 10.2.9.139 RANAP 98 (RUA) SecurityModeComplete 10.2.9.139 10.2.9.200 RANAP 122 SACK (RUA) CommonID 10.2.9.200 10.2.9.139 RANAP 166 SACK (RUA) DirectTransfer (DTAP) (GMM) Authentication and Ciphering Resp 10.2.9.139 10.2.9.200 RANAP 134 SACK (RUA) DirectTransfer (DTAP) (MM) Location Updating Accept 10.2.9.139 10.2.9.200 RANAP 122 (RUA) SecurityModeCommand --> 10.2.9.139 10.2.9.200 RANAP 106 (RUA) DirectTransfer (DTAP) (MM) Location Updating Reject 10.2.9.139 10.2.9.200 RANAP 102 (RUA) Iu-ReleaseCommand 10.2.9.200 10.2.9.139 RANAP 114 SACK (RUA) Iu-ReleaseComplete 10.2.9.200 10.2.9.139 RANAP 102 (RUA) SecurityModeReject 10.2.9.200 10.2.9.139 RANAP 102 (RUA) Iu-ReleaseRequest 10.2.9.139 10.2.9.200 RANAP 118 SACK (RUA) Iu-ReleaseCommand 10.2.9.200 10.2.9.139 RANAP 114 SACK (RUA) Iu-ReleaseComplete Thanks and regards Tuan Lam

6 years, 8 months

Build failed in Jenkins: master-osmo-sgsn

by Harald Welte

Dear fellow Osmocom developers, During the past hours, we've been experiencing master-osmo-sgsn build failures. It coincides with some libosmocore.git vty change merge, it would be great if people working on this and/or osmo-sgsn can have a look. Thanks! -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

6 years, 8 months

UE Unable to Obtain IP Address | Flooding error logs in OSMO-PCU

by Ron

Hi Community, We tried to used the GPRS capability of OSMOCOM. Installation and configuration were based in the URL provided below: https://osmocom.org/projects/cellular-infrastructure/wiki/Osmocom_Network_I… We successfully installed the needed elements to run GPRS and we were able to run the following: osmo-msc osmo-stp osmo-hnbgw (optional) osmo-ggsn osmo-sgsn osmo-mgw osmo-bsc osmo-trx-uhd osmo-hlr osmo-pcu UE were able to camp but IP Address is unavailable (checked it under Settings > About Phone > Status) No session / request coming in the OSMO-SGSN. We are also flooded with this log in OSMO-PCU: <000c> gprs_bssgp_pcu.cpp:848 Sending unblock on BVCI 1800 <000c> gprs_bssgp_bss.c:274 BSSGP (BVCI=1800) Tx BVC-BLOCK <000c> gprs_bssgp.c:288 Cell 001-01-23-0 CI 0 on BVCI 1800 <000c> gprs_bssgp_bss.c:294 BSSGP (BVCI=1800) Tx BVC-RESET CAUSE=O&M intervention <000c> gprs_bssgp.c:550 BSSGP BVCI=0 Rx BVC STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:354 Rx BSSGP BVCI=0 (SIGN) PDU type BVC-UNBLOCK unknown <000c> gprs_bssgp_util.c:238 BSSGP BVCI=0 Tx STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:304 Rx BSSGP BVCI=0 (SIGN) BVC_RESET_ACK <000c> gprs_bssgp_pcu.cpp:848 Sending unblock on BVCI 1800 <000c> gprs_bssgp_bss.c:274 BSSGP (BVCI=1800) Tx BVC-BLOCK <000c> gprs_bssgp.c:288 Cell 001-01-23-0 CI 0 on BVCI 1800 <000c> gprs_bssgp_bss.c:294 BSSGP (BVCI=1800) Tx BVC-RESET CAUSE=O&M intervention <000c> gprs_bssgp.c:550 BSSGP BVCI=0 Rx BVC STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:354 Rx BSSGP BVCI=0 (SIGN) PDU type BVC-UNBLOCK unknown <000c> gprs_bssgp_util.c:238 BSSGP BVCI=0 Tx STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:304 Rx BSSGP BVCI=0 (SIGN) BVC_RESET_ACK <000c> gprs_bssgp_pcu.cpp:848 Sending unblock on BVCI 1800 <000c> gprs_bssgp_bss.c:274 BSSGP (BVCI=1800) Tx BVC-BLOCK <000c> gprs_bssgp.c:288 Cell 001-01-23-0 CI 0 on BVCI 1800 <000c> gprs_bssgp_bss.c:294 BSSGP (BVCI=1800) Tx BVC-RESET CAUSE=O&M intervention <000c> gprs_bssgp.c:550 BSSGP BVCI=0 Rx BVC STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:354 Rx BSSGP BVCI=0 (SIGN) PDU type BVC-UNBLOCK unknown <000c> gprs_bssgp_util.c:238 BSSGP BVCI=0 Tx STATUS, cause=Protocol error - unspecified <000c> gprs_bssgp_pcu.cpp:304 Rx BSSGP BVCI=0 (SIGN) BVC_RESET_ACK Any suggestion / comments what seems to be the problem with our setup? TIA. Best Regard, Ron Menez ron.menez(a)entropysolution.com<mailto:ron.menez@entropysolution.com>

6 years, 9 months

OsmoCon 2018 draft schedule announced

by Harald Welte

Dear Osmocom community, the first schedule of the 2018 incarnation of OsmoCon 2018 has been announced, see http://osmocom.org/news/99 for the announcment and https://pretalx.sysmocom.de/osmocon2018/schedule/ for the actual schedule. At OsmoCon, we are not targetting developers, but more the wider community and Osmocom users. It would be great to meet many of you and hear more about your relation to Osmocom. Tickets are available from https://pretix.sysmocom.de/sysmocom/osmocon2018/, and until August 31st the early bird discount still applies. For those with a community / "just for fun" background and no employer that would cover the ticket, we have a number of subsidized community discount vouchers available. See the OsmoCon 2018 wiki page at https://osmocom.org/projects/osmo-dev-con/wiki/OsmoCon2018 for more information. Looking forward to meeting as many of you as possible in roughly two months from now, Harald Welte -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

6 years, 10 months

SGSN TTCN3 update

by Alexander Couzens

Hi, I've pushed my SGSN Branch "attach fsm" where I reworked the Attach Request into an FSM together with a TTCN branch (replacing unit tests) to gerrit. When both branches applied upstream, we're up to 42 tests. However these 4 test cases are still open: pass->FAIL SGSN_Tests.TC_attach_pdp_act_deact_mt_t3395_expire => TEID wrong. Cleaning up the internal SGSN seems to fail. xfail SGSN_Tests.TC_attach_gsup_lu_timeout => HLR interaction xfail SGSN_Tests.TC_attach_gsup_lu_reject => HLR interaction xfail SGSN_Tests.TC_attach_second_attempt => HLR interaction Best, lynxis -- Alexander Couzens mail: lynxis(a)fe80.eu jabber: lynxis(a)fe80.eu mobile: +4915123277221 gpg: 390D CF78 8BF9 AA50 4F8F F1E2 C29E 9DA6 A0DF 8604

6 years, 10 months

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