--- a/src/network/utils/mac48-address.cc	Wed May 15 10:09:33 2013 -0400
+++ b/src/network/utils/mac48-address.cc	Wed May 15 10:10:26 2013 -0400
@@ -265,7 +265,7 @@
   NS_LOG_FUNCTION (v);
   std::istringstream iss;
   iss.str (v);
-  uint32_t retval;
+  uint8_t retval;
   iss >> std::hex >> retval >> std::dec;
   return retval;
 }