From tuanln at vnpt-technology.vn Tue Oct 16 03:50:33 2018 From: tuanln at vnpt-technology.vn (Lam Ngoc Tuan) Date: Tue, 16 Oct 2018 10:50:33 +0700 Subject: Problem with SGSN Location Update Reject during UE attach Message-ID: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 3g attach first time.pcapng Type: application/octet-stream Size: 11992 bytes Desc: not available URL: From nhofmeyr at sysmocom.de Tue Oct 16 10:34:58 2018 From: nhofmeyr at sysmocom.de (Neels Hofmeyr) Date: Tue, 16 Oct 2018 12:34:58 +0200 Subject: Problem with SGSN Location Update Reject during UE attach In-Reply-To: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> References: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> Message-ID: <20181016103458.GB1736@my.box> Surely you have noticed the MM Location Updating Reject message in your pcap. You are attaching fine to the SGSN (GMM), but are being rejected by the MSC (MM). Hence your phone doesn't like it and leaves. ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: From nhofmeyr at sysmocom.de Tue Oct 16 10:43:29 2018 From: nhofmeyr at sysmocom.de (Neels Hofmeyr) Date: Tue, 16 Oct 2018 12:43:29 +0200 Subject: Problem with SGSN Location Update Reject during UE attach In-Reply-To: <20181016103458.GB1736@my.box> References: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> <20181016103458.GB1736@my.box> Message-ID: <20181016104329.GC1736@my.box> Actually, the GMM attach doesn't complete, either. The messages look a bit confusing, with a bunch of Location Updating Accept followed by a final Location Updating Reject due to "Congestion". The causes may be - two simultaneous MM attach requests from the same subscriber, - timeout after attaching, e.g. phone sends no TMSI Reallocation Complete It's hard for me to see what is going on there, take a look at the MSC's logs. As soon as the MSC attach works out, the phone will continue to try at the SGSN. ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: From tuanln at vnpt-technology.vn Tue Oct 16 10:59:08 2018 From: tuanln at vnpt-technology.vn (Lam Ngoc Tuan) Date: Tue, 16 Oct 2018 17:59:08 +0700 Subject: Problem with SGSN Location Update Reject during UE attach In-Reply-To: <20181016104329.GC1736@my.box> References: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> <20181016103458.GB1736@my.box> <20181016104329.GC1736@my.box> Message-ID: <006e01d4653f$4647c280$d2d74780$@vnpt-technology.vn> Hello Mr. Neels Hofmeyr Vielen Dank fuer die schnelle Antwort :-) Actually we also have seen the "Congestion" in the log but we have not understood why We have modified the SGSN configuration: set auth-policy to accept-all. We repeat the UE attach with this configuration but still MSC sends "Location Update Reject" I attach the new pcap file, msc log and sgsn log. I very appreciate if you can take a look to that. Vielen Dank Tuan Lam -----Original Message----- From: Neels Hofmeyr [mailto:nhofmeyr at sysmocom.de] Sent: Tuesday, October 16, 2018 5:43 PM To: Lam Ngoc Tuan Cc: osmocom-net-gprs at lists.osmocom.org Subject: Re: Problem with SGSN Location Update Reject during UE attach Actually, the GMM attach doesn't complete, either. The messages look a bit confusing, with a bunch of Location Updating Accept followed by a final Location Updating Reject due to "Congestion". The causes may be - two simultaneous MM attach requests from the same subscriber, - timeout after attaching, e.g. phone sends no TMSI Reallocation Complete It's hard for me to see what is going on there, take a look at the MSC's logs. As soon as the MSC attach works out, the phone will continue to try at the SGSN. ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: logs change auth sgsn.rar Type: application/octet-stream Size: 24595 bytes Desc: not available URL: From dchandimal at gmail.com Tue Oct 16 11:08:45 2018 From: dchandimal at gmail.com (Duleep Thilakarathne) Date: Tue, 16 Oct 2018 16:38:45 +0530 Subject: OsmoGGSN - Centos 7 Support Message-ID: 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: From nhofmeyr at sysmocom.de Tue Oct 16 12:19:25 2018 From: nhofmeyr at sysmocom.de (Neels Hofmeyr) Date: Tue, 16 Oct 2018 14:19:25 +0200 Subject: Problem with SGSN Location Update Reject during UE attach In-Reply-To: <006e01d4653f$4647c280$d2d74780$@vnpt-technology.vn> References: <004901d46503$66cf5cc0$346e1640$@vnpt-technology.vn> <20181016103458.GB1736@my.box> <20181016104329.GC1736@my.box> <006e01d4653f$4647c280$d2d74780$@vnpt-technology.vn> Message-ID: <20181016121925.GB3885@my.box> On Tue, Oct 16, 2018 at 05:59:08PM +0700, Lam Ngoc Tuan wrote: > We have modified the SGSN configuration: set auth-policy to accept-all. No. For 3G, you require authentication, hence you need an external HLR that provides auth tuples, for both MSC and SGSN. I was unable to extract the attached rar file, please send a .tar or .tar.gz instead, or even better, just post a link to a pastebin, so we don't fill up people's mail inboxes. In your first trace it seems that your authentication did work out, i.e. HLR configured properly, but in the end the UE failed to respond with a TMSI Reallocation Complete. That's a very weird situation, I would normally associate that with an unreliable / unaccurate SDR based solution. But I assume you are using a nano3G? ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: From pespin at sysmocom.de Tue Oct 16 12:57:29 2018 From: pespin at sysmocom.de (Pau Espin Pedrol) Date: Tue, 16 Oct 2018 14:57:29 +0200 Subject: OsmoGGSN - Centos 7 Support In-Reply-To: References: Message-ID: Hi Duleep, I never used Centos, but I don't see any reason why OsmoGGSN wouldn't compile or run fine. OsmoGGSN is known to build and run fine in other Linux distributions like Ubuntu, Debian, OpenSuse, ArchLinux, OpenEmbedded etc. I personally found some build issues while building it in some old Yocto/OE poky release using old kernel and libc combination due to ipv6 support including ipv6 headers which didn't have proper UAPI support at the time, but I don't think you are going to run into this issue. The only problematic support you may find is in case you want to enable GTP in kernel. You'll need to build/install libgtpnl and make sure your kernel supports it, but you can run totally fine without this feature too otherwise. Regards, -- - Pau Espin Pedrol http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte From laforge at gnumonks.org Wed Oct 24 20:00:18 2018 From: laforge at gnumonks.org (Harald Welte) Date: Wed, 24 Oct 2018 22:00:18 +0200 Subject: OsmoDevCon 2019 date poll Message-ID: <20181024200018.GA27815@nataraja> 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 http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) From dzakwanfalih at hotmail.com Mon Oct 29 16:22:13 2018 From: dzakwanfalih at hotmail.com (Dzakwan Falih) Date: Mon, 29 Oct 2018 16:22:13 +0000 Subject: [ASK : Version for build GPRS ] Message-ID: 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 [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/facebook.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/linkedin.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/twitter.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/instagram.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From dzakwanfalih at hotmail.com Mon Oct 29 16:16:15 2018 From: dzakwanfalih at hotmail.com (Dzakwan Falih) Date: Mon, 29 Oct 2018 16:16:15 +0000 Subject: [ASK version support GPRS for USRP ] Message-ID: 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 [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/facebook.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/linkedin.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/twitter.png] [https://s3.amazonaws.com/images.wisestamp.com/social_icons/square/instagram.png] -------------- next part -------------- An HTML attachment was scrubbed... URL: From laforge at gnumonks.org Wed Oct 31 08:07:03 2018 From: laforge at gnumonks.org (Harald Welte) Date: Wed, 31 Oct 2018 09:07:03 +0100 Subject: [ASK version support GPRS for USRP ] In-Reply-To: References: Message-ID: <20181031080703.GJ8374@nataraja> Dera Muhammad, thanks for your interest in Osmocom. Please note that the official language on our mailing lists is English. This is the largest common denominator between the various developers and users. Thanks for your kind attention. Regards, Harald -- - Harald Welte http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) From a4651386 at 163.com Wed Oct 31 09:38:48 2018 From: a4651386 at 163.com (luo) Date: Wed, 31 Oct 2018 09:38:48 -0000 Subject: Can you tell me how to compile and install libgtpnl? Message-ID: <2e29f776.12601.166c96046cc.Coremail.a4651386@163.com> hello,Please forgive my childishness,Can you tell me how to compile and install libgtpnl?thanks I saw that you wrote the libgtpnl project on github, but there is no readme above. -------------- next part -------------- An HTML attachment was scrubbed... URL: