--- a/src/node/packet-socket.cc	Wed May 14 18:16:02 2008 +0100
+++ b/src/node/packet-socket.cc	Wed May 14 19:15:00 2008 +0100
@@ -111,11 +111,11 @@
   Ptr<NetDevice> dev ;
   if (address.IsSingleDevice ())
     {
-      dev = 0;
+      dev = m_node->GetDevice (address.GetSingleDevice ());
     }
   else
     {
-      dev = m_node->GetDevice (address.GetSingleDevice ());
+      dev = 0;
     }
   m_node->RegisterProtocolHandler (MakeCallback (&PacketSocket::ForwardUp, this),
                                    address.GetProtocol (), dev);