--- a/src/helper/ipv4-address-helper.cc	Thu May 28 20:16:56 2009 +0200
+++ b/src/helper/ipv4-address-helper.cc	Thu May 28 21:37:25 2009 -0700
@@ -131,7 +131,7 @@
     Ptr<Ipv4> ipv4 = node->GetObject<Ipv4> ();
     NS_ASSERT_MSG (ipv4, "Ipv4AddressHelper::Allocate(): Bad ipv4");
 
-    int32_t interface = ipv4->FindInterfaceForDevice (device);
+    int32_t interface = ipv4->GetInterfaceForDevice (device);
     if (interface == -1)
       {
         interface = ipv4->AddInterface (device);