I 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...<br><br>Function &#39;gprs_llc_tx_ui&#39; uses function &#39;lle_by_tlli_sapi&#39; to retrieve an lle based on a tlli/sapi combination. To do the lookup, the supplied tlli is &#39;localized&#39; (tlli_foreign2local). If this does not result in a succesful find, function &#39;llme_alloc&#39; is used to &quot;create an LLME on the fly&quot;. However &#39;llme_alloc&#39; does not localize the tlli. So every next search for the lle fails.<br>
<br>For this I created this patch:<br><br>--- openbsc/openbsc/src/gprs/gprs_llc.c 2012-04-30 15:42:58.958823325 +0200<br>+++ ../openbsc/openbsc/openbsc/src/gprs/gprs_llc.c      2012-04-30 10:54:11.291836887 +0200<br>@@ -157,7 +160,8 @@<br>
  if (!llme)<br>   return NULL;<br><br>- llme-&gt;tlli = tlli;<br>+ llme-&gt;tlli = tlli_foreign2local(tlli);<br>  llme-&gt;old_tlli = 0xffffffff;<br>  llme-&gt;state = GPRS_LLMS_UNASSIGNED;<br><br><br><br>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.<br>
<br>HTH/F<br>