--- a/src/node/address-utils.h	Thu May 28 20:16:56 2009 +0200
+++ b/src/node/address-utils.h	Thu May 28 21:37:25 2009 -0700
@@ -38,6 +38,14 @@
 void ReadFrom (Buffer::Iterator &i, Address &ad, uint32_t len);
 void ReadFrom (Buffer::Iterator &i, Mac48Address &ad);
 
+namespace addressUtils {
+
+/**
+ * \brief Address family-independent test for a multicast address
+ */
+bool IsMulticast (const Address &ad);
+};  
+
 };
 
 #endif /* ADDRESS_UTILS_H */