diff --git a/VERSION b/VERSION
index 8f61b039..eb595278 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 2.1.0 (2012-10-12 12:18:47) dev
+Version 2.1.0 (2012-10-12 18:16:59) dev
diff --git a/gluon/utils.py b/gluon/utils.py
index 1d1e232c..e10fb7a4 100644
--- a/gluon/utils.py
+++ b/gluon/utils.py
@@ -191,6 +191,8 @@ def is_valid_ip_address(address):
     elif address.lower() in ('unkown',''):
         return False
     elif address.count('.')==3: # assume IPv4
+        if address.startswith('::ffff:'):
+            address = address[7:]
         if hasattr(socket,'inet_aton'): # try validate using the OS
             try:
                 addr = socket.inet_aton(address)