diff -r 10fbe045901e -r e9918be47f78 src/devices/wifi/qsta-wifi-mac.cc
--- a/src/devices/wifi/qsta-wifi-mac.cc	Wed Feb 03 20:34:50 2010 +0100
+++ b/src/devices/wifi/qsta-wifi-mac.cc	Wed Feb 03 20:34:51 2010 +0100
@@ -857,7 +857,7 @@
   packet->AddHeader (actionHdr);
   
   /* ns3::MacLow have to buffer all correctly received packet for this block ack session */
-  //m_low->CreateIngoingAgreement (&respHdr, originator, reqHdr->GetStartingSequence ());
+  m_low->CreateBlockAckAgreement (&respHdr, originator, reqHdr->GetStartingSequence ());
 
   //Better a management queue? 
   m_queues[QosUtilsMapTidToAc (reqHdr->GetTid ())]->PushFront (packet, hdr);