diff -r 37b316422064 src/devices/wifi/nqap-wifi-mac.cc
--- a/src/devices/wifi/nqap-wifi-mac.cc	Mon Oct 27 15:12:00 2008 -0400
+++ b/src/devices/wifi/nqap-wifi-mac.cc	Tue Oct 28 17:13:05 2008 +0000
@@ -424,13 +424,17 @@
 void 
 NqapWifiMac::Receive (Ptr<Packet> packet, WifiMacHeader const *hdr)
 {
-  NS_LOG_FUNCTION (this << packet << hdr);
+  NS_LOG_FUNCTION (this << *packet << *hdr);
 
   Mac48Address from = hdr->GetAddr2 ();
   WifiRemoteStation *fromStation = m_stationManager->Lookup (from);
 
   if (hdr->IsData ()) 
     {
+      if (!fromStation->IsAssociated ())
+        {
+          NS_LOG_DEBUG ("data from a station that is not associated");
+        }
       Mac48Address bssid = hdr->GetAddr1 ();
       if (!hdr->IsFromDs () && 
           hdr->IsToDs () &&
diff -r 37b316422064 src/devices/wifi/wifi-mac-header.cc
--- a/src/devices/wifi/wifi-mac-header.cc	Mon Oct 27 15:12:00 2008 -0400
+++ b/src/devices/wifi/wifi-mac-header.cc	Tue Oct 28 17:13:05 2008 +0000
@@ -779,9 +779,9 @@
 void 
 WifiMacHeader::PrintFrameControl (std::ostream &os) const
 {
-  os << "ToDS=" << m_ctrlToDs << ", FromDS=" << m_ctrlFromDs 
-     << ", MoreFrag=" << m_ctrlMoreFrag << ", Retry=" << m_ctrlRetry 
-     << ", MoreData=" << m_ctrlMoreData 
+  os << "ToDS=" << int (m_ctrlToDs) << ", FromDS=" << int (m_ctrlFromDs)
+     << ", MoreFrag=" << int (m_ctrlMoreFrag) << ", Retry=" << int (m_ctrlRetry)
+     << ", MoreData=" << int (m_ctrlMoreData)
     ;
 }
 
@@ -818,12 +818,12 @@
       PrintFrameControl (os);
       os << " Duration/ID=" << m_duration << "us"
          << ", DA=" << m_addr1 << ", SA=" << m_addr2
-         << ", BSSID=" << m_addr3 << ", FragNumber=" << m_seqFrag
+         << ", BSSID=" << m_addr3 << ", FragNumber=" << int (m_seqFrag)
          << ", SeqNumber=" << m_seqSeq;
       break;
     case WIFI_MAC_DATA:
       PrintFrameControl (os);
-      os << " Duration/ID=" << m_duration << "us";
+      os << " Duration/ID=" << m_duration << "us ";
       if (!m_ctrlToDs && !m_ctrlFromDs)
         {
           os << "DA=" << m_addr1 << ", SA=" << m_addr2 << ", BSSID=" << m_addr3;
@@ -844,7 +844,7 @@
         {
           NS_ASSERT (false);
         }
-      os << ", FragNumber=" << m_seqFrag
+      os << ", FragNumber=" << int (m_seqFrag)
          << ", SeqNumber=" << m_seqSeq;
       break;
     case WIFI_MAC_DATA_CFACK: