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Neels Hofmeyr nhofmeyr at sysmocom.deOn Sun, Feb 25, 2018 at 12:50:54AM -0300, Rafael Diniz wrote: > osmo-sgsn gives me: > 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) Hi Rafael, as Vadim pointed out, you won't be able to do Authentication without the actual auth tuples, which you most likely do not know for an arbitrary SIM. In 2G however, it is possible to connect without Authentication. I think that's done by 'auth-policy closed' and using 'ismi-acl add <your-imsi>', in the osmo-sgsn.cfg under 'sgsn'. Then you're not using the HLR at all. In the MSC, we have added a configuration option 'authentication optional' so that you can use the HLR and allow missing auth data there, but the SGSN hasn't seen attention to that detail yet. There it's all or nothing, IIRC. Looking forward to hear your results on it... ~N -- - Neels Hofmeyr <nhofmeyr at sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschäftsführer / Managing Directors: Harald Welte -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20180226/427ad5fd/attachment.bin>