diff --git a/host_vars/cameron.adm.crans.org b/host_vars/cameron.adm.crans.org
index eb52e33d..22235c8a 100644
--- a/host_vars/cameron.adm.crans.org
+++ b/host_vars/cameron.adm.crans.org
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_borg:
   to_exclude:
     - /var/mail
diff --git a/host_vars/daneel.adm.crans.org.yml b/host_vars/daneel.adm.crans.org.yml
index 9c85efa9..94a1a3ec 100644
--- a/host_vars/daneel.adm.crans.org.yml
+++ b/host_vars/daneel.adm.crans.org.yml
@@ -1,4 +1,5 @@
 ---
 interfaces:
+  disable: true
   adm: ens18
   san: ens19
diff --git a/host_vars/daniel.adm.crans.org.yml b/host_vars/daniel.adm.crans.org.yml
index 478b69ea..01b46fd4 100644
--- a/host_vars/daniel.adm.crans.org.yml
+++ b/host_vars/daniel.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_slapd:
   ip: "{{ query('ldap', 'ip4', 'daniel', 'adm') }}"
   replica: true
diff --git a/host_vars/ft.adm.crans.org.yml b/host_vars/ft.adm.crans.org.yml
index 79ae4a42..0d0d24f4 100644
--- a/host_vars/ft.adm.crans.org.yml
+++ b/host_vars/ft.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_borg:
   to_backup:
     - /etc
diff --git a/host_vars/gulp.adm.crans.org.yml b/host_vars/gulp.adm.crans.org.yml
index 4c4ef29d..5ac1f216 100644
--- a/host_vars/gulp.adm.crans.org.yml
+++ b/host_vars/gulp.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_debian_images:
   include_extra_images: true
 
diff --git a/host_vars/jack.adm.crans.org.yml b/host_vars/jack.adm.crans.org.yml
index 2f0a0487..8f17200b 100644
--- a/host_vars/jack.adm.crans.org.yml
+++ b/host_vars/jack.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_slapd:
   ip: "{{ query('ldap', 'ip4', 'jack', 'adm') }}"
   replica: true
diff --git a/host_vars/listenup.adm.crans.org.yml b/host_vars/listenup.adm.crans.org.yml
index 9c85efa9..94a1a3ec 100644
--- a/host_vars/listenup.adm.crans.org.yml
+++ b/host_vars/listenup.adm.crans.org.yml
@@ -1,4 +1,5 @@
 ---
 interfaces:
+  disable: true
   adm: ens18
   san: ens19
diff --git a/host_vars/odlyd.adm.crans.org.yml b/host_vars/odlyd.adm.crans.org.yml
index 4c4ef29d..5ac1f216 100644
--- a/host_vars/odlyd.adm.crans.org.yml
+++ b/host_vars/odlyd.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_debian_images:
   include_extra_images: true
 
diff --git a/host_vars/routeur-daniel.adm.crans.org/vars.yml b/host_vars/routeur-daniel.adm.crans.org/vars.yml
index 8b24f1a9..817bff2f 100644
--- a/host_vars/routeur-daniel.adm.crans.org/vars.yml
+++ b/host_vars/routeur-daniel.adm.crans.org/vars.yml
@@ -1,5 +1,6 @@
 ---
 interfaces:
+  disable: true
   adm: ens18
   via: ens19
   aurore: ens20
diff --git a/host_vars/routeur-jack.adm.crans.org/vars.yml b/host_vars/routeur-jack.adm.crans.org/vars.yml
index 8b24f1a9..817bff2f 100644
--- a/host_vars/routeur-jack.adm.crans.org/vars.yml
+++ b/host_vars/routeur-jack.adm.crans.org/vars.yml
@@ -1,5 +1,6 @@
 ---
 interfaces:
+  disable: true
   adm: ens18
   via: ens19
   aurore: ens20
diff --git a/host_vars/routeur-sam.adm.crans.org/vars.yml b/host_vars/routeur-sam.adm.crans.org/vars.yml
index 8b24f1a9..817bff2f 100644
--- a/host_vars/routeur-sam.adm.crans.org/vars.yml
+++ b/host_vars/routeur-sam.adm.crans.org/vars.yml
@@ -1,5 +1,6 @@
 ---
 interfaces:
+  disable: true
   adm: ens18
   via: ens19
   aurore: ens20
diff --git a/host_vars/sam.adm.crans.org.yml b/host_vars/sam.adm.crans.org.yml
index e0f65f21..4e43a437 100644
--- a/host_vars/sam.adm.crans.org.yml
+++ b/host_vars/sam.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_borg:
   to_backup:
     - /etc
diff --git a/host_vars/stitch.adm.crans.org.yml b/host_vars/stitch.adm.crans.org.yml
index 119fa7ab..618d7325 100644
--- a/host_vars/stitch.adm.crans.org.yml
+++ b/host_vars/stitch.adm.crans.org.yml
@@ -1,3 +1,6 @@
 ---
+interfaces:
+  disable: true
+
 loc_debian_images:
   include_extra_images: true
diff --git a/host_vars/tealc.adm.crans.org.yml b/host_vars/tealc.adm.crans.org.yml
index 68407ac2..841968a9 100644
--- a/host_vars/tealc.adm.crans.org.yml
+++ b/host_vars/tealc.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 debian_mirror: 'file:/pool/mirror/pub/debian'
 
 loc_postgres:
diff --git a/host_vars/thot.adm.crans.org.yml b/host_vars/thot.adm.crans.org.yml
index 3b0dd8e1..2136db1c 100644
--- a/host_vars/thot.adm.crans.org.yml
+++ b/host_vars/thot.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_borg:
   to_backup:
     - /etc
diff --git a/host_vars/zamok.adm.crans.org.yml b/host_vars/zamok.adm.crans.org.yml
index b0851a06..2ca56e49 100644
--- a/host_vars/zamok.adm.crans.org.yml
+++ b/host_vars/zamok.adm.crans.org.yml
@@ -1,4 +1,7 @@
 ---
+interfaces:
+  disable: true
+
 loc_borg:
   to_exclude:
     - /var/mail
diff --git a/plays/network_interfaces.yml b/plays/network_interfaces.yml
index a1e5f134..3acbff02 100755
--- a/plays/network_interfaces.yml
+++ b/plays/network_interfaces.yml
@@ -1,6 +1,6 @@
 #!/usr/bin/env ansible-playbook
 ---
-- hosts: crans_vm,!routeurs_vm
+- hosts: server
   vars:
     network_interfaces: "{{ glob_network_interfaces | default({}) | combine(loc_network_interfaces | default({})) }}"
   roles:
diff --git a/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2 b/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
index acc90805..d89afa56 100644
--- a/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
+++ b/roles/isc-dhcp-server/templates/dhcp/dhcpd.conf.j2
@@ -35,7 +35,7 @@ include "./dhcp-failover.conf";
 
 
 {% for subnet in dhcp.subnets %}
-subnet {{ subnet.network | ansible.utils.netaddr('network') }} netmask {{ subnet.network | ansible.utils.netaddr('netmask') }} {
+subnet {{ subnet.network | ansible.utils.ipaddr('network') }} netmask {{ subnet.network | ansible.utils.ipaddr('netmask') }} {
 	interface "{{ interfaces[subnet.vlan]  }}";
 {% if subnet.default_lease_time is defined %}
 	default-lease-time {{ subnet.default_lease_time }};
@@ -43,8 +43,8 @@ subnet {{ subnet.network | ansible.utils.netaddr('network') }} netmask {{ subnet
 {% if subnet.max_lease_time is defined %}
 	max-lease-time {{ subnet.max_lease_time }};
 {% endif %}
-	option subnet-mask {{ subnet.network | ansible.utils.netaddr('netmask') }};
-	option broadcast-address {{ subnet.network | ansible.utils.netaddr('broadcast') }};
+	option subnet-mask {{ subnet.network | ansible.utils.ipaddr('netmask') }};
+	option broadcast-address {{ subnet.network | ansible.utils.ipaddr('broadcast') }};
 {% if subnet.routers is defined %}
 	option routers {{ subnet.routers }};
 {% endif %}
diff --git a/roles/network-interfaces/tasks/main.yml b/roles/network-interfaces/tasks/main.yml
index 503a9c42..4acf9606 100644
--- a/roles/network-interfaces/tasks/main.yml
+++ b/roles/network-interfaces/tasks/main.yml
@@ -9,17 +9,19 @@
   register: apt_result
   retries: 3
   until: apt_result is succeeded
+  when: not (interfaces.disable is defined and interfaces.disable)
 
 - name: Deploy default interfaces config
   template:
     src: network/interfaces.j2
     dest: /etc/network/interfaces
     mode: 0644
+  when: interfaces is defined and not (interfaces.disable is defined and interfaces.disable)
 
 - name: Deploy interfaces config
   template:
     src: network/interfaces.d/ifalias.j2
     dest: /etc/network/interfaces.d/{{ '%02d' | format(item.id) }}-{{ item.name | replace('_', '-') }}
     mode: 0644
-  when: item.name in interfaces
+  when: interfaces is defined and item.name in interfaces and not (interfaces.disable is defined and interfaces.disable)
   loop: "{{ network_interfaces.vlan }}"