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Frank Maas maas.frank at gmail.comI might be horribly wrong, but there is something I did not grasp in gprs_llc.c. So I altered it, but since I am not sure I share it here... Function 'gprs_llc_tx_ui' uses function 'lle_by_tlli_sapi' to retrieve an lle based on a tlli/sapi combination. To do the lookup, the supplied tlli is 'localized' (tlli_foreign2local). If this does not result in a succesful find, function 'llme_alloc' is used to "create an LLME on the fly". However 'llme_alloc' does not localize the tlli. So every next search for the lle fails. For this I created this patch: --- openbsc/openbsc/src/gprs/gprs_llc.c 2012-04-30 15:42:58.958823325 +0200 +++ ../openbsc/openbsc/openbsc/src/gprs/gprs_llc.c 2012-04-30 10:54:11.291836887 +0200 @@ -157,7 +160,8 @@ if (!llme) return NULL; - llme->tlli = tlli; + llme->tlli = tlli_foreign2local(tlli); llme->old_tlli = 0xffffffff; llme->state = GPRS_LLMS_UNASSIGNED; This seems to have solved the problem (unable to get an IP link operational), but I am not sure if this was the correct way to handle this, so please feel free to comment. HTH/F -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20120430/3afd202a/attachment.htm>