diff --git a/p4app/controller.py b/p4app/controller.py
index 813679c..d46dfa0 100644
--- a/p4app/controller.py
+++ b/p4app/controller.py
@@ -113,7 +113,7 @@ class L2Controller(object):
         # specific settings
         for mode in ["range_router"]:
             for net in self.v6_routes[mode]:
-                v6_net = net
+                v6_net = net['net']I'
                 v4_net = self.info['v4_nat64_map'].next()
 
                 self.nat64_map[mode].append({