diff --git a/hosts/h1_interfaces b/hosts/h1_interfaces
index c96d347..65645c0 100644
--- a/hosts/h1_interfaces
+++ b/hosts/h1_interfaces
@@ -3,6 +3,11 @@ iface lo inet loopback
 
 auto eth1
 iface eth1 inet static
+
+auto eth1.50
+iface eth1.50 inet static
     address 10.10.120.10
     netmask 255.255.255.0
-    gateway 10.10.120.1
\ No newline at end of file
+    gateway 10.10.120.1
+    vlan-raw-device eth1
+    vlan_id 50
\ No newline at end of file
diff --git a/hosts/h2_interfaces b/hosts/h2_interfaces
index e51a778..b3e49de 100644
--- a/hosts/h2_interfaces
+++ b/hosts/h2_interfaces
@@ -3,6 +3,11 @@ iface lo inet loopback
 
 auto eth1
 iface eth1 inet static
+
+auto eth1.50
+iface eth1.50 inet static
     address 10.10.120.20
     netmask 255.255.255.0
-    gateway 10.10.120.1
\ No newline at end of file
+    gateway 10.10.120.1
+    vlan-raw-device eth1
+    vlan_id 50
\ No newline at end of file