--- a/src/lte/test/epc-test-s1u-downlink.cc	Fri Jul 20 18:24:23 2012 +0200
+++ b/src/lte/test/epc-test-s1u-downlink.cc	Sun Jul 29 14:29:41 2012 +0200
@@ -202,6 +202,7 @@
 
           uint64_t imsi = u+1;
           epcHelper->AttachUe (ueLteDevice, imsi, enbDevice);
+          enbApp->GetS1SapProvider ()->InitialUeMessage (imsi, (uint16_t) imsi);
           epcHelper->ActivateEpsBearer (ueLteDevice, imsi, EpcTft::Default (), EpsBearer (EpsBearer::NGBR_VIDEO_TCP_DEFAULT));
         }