Help with GPRS and new split stack

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Rafael Diniz rafael at riseup.net
Sun Feb 25 03:50:54 UTC 2018


Hi all,
I'm running the new split stack on a LC 15 (osmo-bts and osmo-pcu from
stock LC15, and osmo-bsc, osmo-msc, osmo-stp, osmo-hlr, ... from debian
9 armv7l nightly in a chroot).

osmo-sgsn gives me:

0180225034309988 DGPRS <000f> gprs_subscriber.c:714
SUBSCR(250026920931392) Received GSUP message
OSMO_GSUP_MSGT_SEND_AUTH_INFO_ERROR
20180225034309988 DGPRS <000f> gprs_subscriber.c:470
SUBSCR(250026920931392) Send authentication info has failed with cause
2, handled as: Permission denied
20180225034309988 DGPRS <000f> gprs_subscriber.c:478
SUBSCR(250026920931392) GPRS send auth info req failed, access denied,
GMM cause = 'IMSI unknown in HLR' (2)
20180225034309988 DGPRS <000f> gprs_subscriber.c:828
SUBSCR(250026920931392) Updating subscriber authentication info
20180225034309988 DMM <0002> gprs_sgsn.c:726
MM(250026920931392/e550701e) Subscriber data update
20180225034309988 DMM <0002> sgsn_auth.c:219
MM(250026920931392/e550701e) Updating authorization (unknown ->
authenticate)
20180225034309988 DMM <0002> sgsn_auth.c:236
MM(250026920931392/e550701e) Missing auth tuples, authorization not possible
20180225034309988 DMM <0002> sgsn_auth.c:248
MM(250026920931392/e550701e) Got authorization update: state unknown ->
rejected
20180225034309988 DMM <0002> gprs_gmm.c:1140
MM(250026920931392/e550701e) Not authorized, rejecting ATTACH REQUEST
with cause 'IMSI unknown in HLR' (2)
20180225034309988 DMM <0002> gprs_gmm.c:489 MM(250026920931392/e550701e)
<- GPRS ATTACH REJECT: IMSI unknown in HLR
20180225034309988 DMM <0002> gprs_gmm.c:313 MM(250026920931392/e550701e)
Cleaning MM context due to GPRS ATTACH REJECT

osmo-hlr:

20180225034401485 DAUC <0003> db_auc.c:129 IMSI='250026920931392': No 2G
Auth Data
20180225034401485 DAUC <0003> db_auc.c:165 IMSI='250026920931392': No 3G
Auth Data
20180225034401485 DAUC <0003> hlr.c:79 250026920931392: IMSI known, but
has no auth data; Returning slightly inaccurate cause 'IMSI Unknown' via
GSUP

But I added the IMSIs in the HLR.
Which kind of auth data should I put to a SIM card from a mainstream
carrier?

Thanks,
Rafael Diniz

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