diff --git a/p4app/controller.py b/p4app/controller.py
index 94955d9..957e84b 100755
--- a/p4app/controller.py
+++ b/p4app/controller.py
@@ -128,9 +128,9 @@ class L2Controller(object):
         for mode in ["range_router"]:
             for v6_net in self.v6_routes[mode]:
                 # This is a /64
-                v6_dst_base = self.info['v6_nat64_base'].next()
+                v6_dst_base = self.info['v6_nat64_gen'].next()
 
-                # This is a /96xs!
+                # This is a /96 -> the first /96 inside the /64
                 v6_dst = v6_dst_base.subnets(new_prefix=self.info['v6_nat64_mask']).next()
 
                 for v4_net in self.v4_routes[mode]: