diff --git a/iom-dc/LEAF-C6-SW2.cfg b/iom-dc/LEAF-C6-SW2.cfg
index 0f07581..e23248a 100644
--- a/iom-dc/LEAF-C6-SW2.cfg
+++ b/iom-dc/LEAF-C6-SW2.cfg
@@ -1325,19 +1325,19 @@ interfaces {
         unit 47 {
             description "New DMZ vlan";
             family inet {
-                address 192.168.47.248/24;
+                inactive: address 192.168.47.248/24;
             }
         }
         unit 54 {
             description "VLAN54";
             family inet {
-                address 192.168.54.4/24;
+                inactive: address 192.168.54.4/24;
             }
         }
         unit 127 {
             description "Vlan for Second Fibre Link to Clarendon house";
             family inet {
-                address 172.16.127.3/29;
+                inactive: address 172.16.127.3/29;
             }
         }
     }
diff --git a/iom-dc/LEAF-C8-SW2.cfg b/iom-dc/LEAF-C8-SW2.cfg
index bc0a82a..840855c 100644
--- a/iom-dc/LEAF-C8-SW2.cfg
+++ b/iom-dc/LEAF-C8-SW2.cfg
@@ -1289,7 +1289,7 @@ interfaces {
         unit 28 {
             description "New vlan for the 4G link to old network";
             family inet {
-                address 192.168.28.3/28;
+                inactive: address 192.168.28.3/28;
             }
         }
         unit 44 {
@@ -1301,25 +1301,25 @@ interfaces {
         unit 48 {
             description "DMZ VLAN";
             family inet {
-                address 192.168.48.244/24;
+                inactive: address 192.168.48.244/24;
             }
         }
         unit 166 {
             description "LAN connection vlan for X1700 Cato sockets";
             family inet {
-                address 10.166.0.16/16;
+                inactive: address 10.166.0.16/16;
             }
         }
         unit 193 {
             description "Cato connection for WAN 1 via Hurricane Networks";
             family inet {
-                address 192.168.193.16/24;
+                inactive: address 192.168.193.16/24;
             }
         }
         unit 194 {
             description "Cato connection for WAN 2 via Domicilium Transit Internet";
             family inet {
-                address 192.168.194.16/24;
+                inactive: address 192.168.194.16/24;
             }
         }
     }