--- a/src/internet-stack/tcp-l4-protocol.h	Tue Sep 02 15:17:54 2008 -0700
+++ b/src/internet-stack/tcp-l4-protocol.h	Tue Sep 02 17:20:32 2008 -0700
@@ -62,7 +62,6 @@
   void SetNode (Ptr<Node> node);
 
   virtual int GetProtocolNumber (void) const;
-  virtual int GetVersion (void) const;
 
   /**
    * \return A smart Socket pointer to a TcpSocketImpl, allocated by this instance