diff --git a/host_vars/shell01.foo.sh.yml b/host_vars/shell01.foo.sh.yml
index d779d50..5864afe 100644
--- a/host_vars/shell01.foo.sh.yml
+++ b/host_vars/shell01.foo.sh.yml
@@ -13,3 +13,4 @@ network_interfaces:
     netmask: 255.255.255.0
     proto: static
     nameservers: [172.20.30.2]
+    ip6addr: none
diff --git a/host_vars/shell02.foo.sh.yml b/host_vars/shell02.foo.sh.yml
index c34042b..ce88e70 100644
--- a/host_vars/shell02.foo.sh.yml
+++ b/host_vars/shell02.foo.sh.yml
@@ -13,3 +13,4 @@ network_interfaces:
     netmask: 255.255.255.0
     proto: static
     nameservers: [172.20.30.2]
+    ip6addr: none