[srslte-users] MAC Authentication failure

[Saimanoj Katta]

Hi Pedro,

Thank you for the comments. Your information helped me get past through the
failure. However, I have still problems getting a stable connection.

The srsLTE UE code is crashing when I run and fails during the intial
context setup. Is there some issue with the srsUE code by any chance?  I
get the output as follows(I have trimmed it):

Attaching UE...
Searching cell in DL EARFCN=3350, f_dl=2680.0 MHz, f_ul=2560.0 MHz
.
Found Cell:  Mode=FDD, PCI=12, PRB=100, Ports=2, CFO=1.2 KHz
Found PLMN:  Id=24459, TAC=12594
Found PLMN:  Id=24459, TAC=12594
Random Access Transmission: seq=4, ra-rnti=0x2
RRC Connected
Random Access Complete.     c-rnti=0x353e, ta=5
srsLTE crashed... backtrace saved in './srsLTE.backtrace.crash'...
---  exiting  ---

Attached are the srsUE log, pcap log and the crash file for reference.

Regards,
Saimanoj


On Mon, Aug 19, 2019 at 12:52 PM Pedro Alvarez <
pedro.alvarez at softwareradiosystems.com> wrote:

> Perhaps you forgot to set the UE's authentication algorithm? I don't
> see you setting that in the command line arguments of the UE and
> commercial EPCs usually use milenage (by default srsUE uses XOR).
> Also, if you can't see the PCAP, try setting the DLT user (see the ue
> configuration file for some instructions)
>
> On Wed, Aug 14, 2019 at 11:23 AM Saimanoj Katta
> <saimanoj.katta at cumucore.com> wrote:
> >
> > Hi,
> >
> > I am trying to use srsLTE UE (via USRP X310) to a commercial base
> station and commercial EPC.  EPC log(in the attachment) indicates 0x5c MAC
> failure.
> > I am not able to decode anything from pcap as it does not indicate any
> protocols used(attached below which is obtained by enabling pcap enable =
> true in code). I have also attached UE log. Can you help me figure out
> where might be the problem(Why is authentication failing, if all the
> parameters are set properly)? I would appreciate any help that could lead
> me further!
> >
> > I am running as root user: root at ubuntu-Zephyrus-GX501GI:/home/ubuntu/srsLTE-issuefix_format1c#
> srsue --rf.dl_earfcn 3350 --log.all_level=info --usim.k
> 000102030405060708090A0B0C0D0E0F --usim.opc
> BC2BCE2A23BE2FAE32E4F1B4546004F7 --usim.imsi 244591000000001 --pcap.enable 1
> >
> > mysql> select mcc,mnc,hex(msin), msisdn from subscriber_profile WHERE
> (mcc=244 AND mnc=59 AND hex(msin)=1000000001 AND msisdn= 358591000000001)
> >     -> ;
> > +-----+-----+------------+-----------------+
> > | mcc | mnc | hex(msin)  | msisdn          |
> > +-----+-----+------------+-----------------+
> > | 244 |  59 | 1000000001 | 358591000000001 |
> > +-----+-----+------------+-----------------+
> > 1 row in set (0.00 sec)
> >
> > 2) It would be great if you could add a search functionality to your
> forum. It would be easier to search for issues that have same keywords.
> >
> > Thanks for your help!
> >
> > Regards,
> > Saimanoj
> > _______________________________________________
> > srslte-users mailing list
> > srslte-users at lists.softwareradiosystems.com
> > http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>
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