--- a/src/applications/packet-sink/packet-sink.cc	Wed Jul 02 13:23:54 2008 -0700
+++ b/src/applications/packet-sink/packet-sink.cc	Wed Jul 02 21:07:36 2008 -0700
@@ -95,6 +95,7 @@
 {
   if (m_socket) 
     {
+      m_socket->Close ();
       m_socket->SetRecvCallback (MakeNullCallback<void, Ptr<Socket> > ());
     }
 }