diff -r ff98fa9b84ce -r 8b633782f02d addr.py
--- a/addr.py	Thu Apr 02 21:11:01 2009 +0300
+++ b/addr.py	Thu Apr 02 22:52:26 2009 +0300
@@ -15,6 +15,20 @@
         """
     
         super(IP, self).__init__(address)
+    
+    def is_v4 (self) :
+        """
+            Returns True if the address is an IPv4 address
+        """
+
+        return self.version() == 4
+
+    def is_v6 (self) :
+        """
+            Returns True if the address is an IPv6 address
+        """
+
+        return self.version() == 6
 
 class Network (IPy.IP, object) :
     """