--- a/src/node/ipv4.cc	Thu Mar 13 11:21:12 2008 -0700
+++ b/src/node/ipv4.cc	Thu Mar 13 12:56:49 2008 -0700
@@ -30,7 +30,7 @@
 TypeId 
 Ipv4::GetTypeId (void)
 {
-  static TypeId tid = TypeId ("Ipv4")
+  static TypeId tid = TypeId ("ns3::Ipv4")
     .SetParent<Object> ();
   return tid;
 }