--- a/src/internet-node/udp-l4-protocol.h	Mon Oct 01 14:14:31 2007 +0200
+++ b/src/internet-node/udp-l4-protocol.h	Mon Oct 01 14:15:56 2007 +0200
@@ -73,7 +73,7 @@
    * \param sport The source port number
    * \param dport The destination port number
    */
-  void Send (Packet packet,
+  void Send (Ptr<Packet> packet,
              Ipv4Address saddr, Ipv4Address daddr, 
              uint16_t sport, uint16_t dport);
   /**
@@ -83,7 +83,7 @@
    * \param destination The destinations Ipv4Address
    */
   // inherited from Ipv4L4Protocol
-  virtual void Receive(Packet& p, 
+  virtual void Receive(Ptr<Packet> p, 
                        Ipv4Address const &source,
                        Ipv4Address const &destination,
                        Ptr<Ipv4Interface> interface);