diff --git a/ansible/inventories/sifi.yaml b/ansible/inventories/sifi.yaml
index 4936fd3..f73cec5 100644
--- a/ansible/inventories/sifi.yaml
+++ b/ansible/inventories/sifi.yaml
@@ -4,7 +4,8 @@ sifi:
     opn:
       hosts:
         ns1.sifi.isti.cnr.it:
-          ansible_host:  146.48.108.51
+          #ansible_host:  146.48.108.51 [WAN public ip]
+          ansible_host: 10.20.30.111
     nameserver:
         opn:
     workers: