diff --git a/group_vars/all/network_interfaces.yml b/group_vars/all/network_interfaces.yml
index ee96599e..200f0cda 100644
--- a/group_vars/all/network_interfaces.yml
+++ b/group_vars/all/network_interfaces.yml
@@ -12,6 +12,8 @@ glob_network_interfaces:
       gateway_v6: "{{ query('ldap', 'ip', 'passerelle', 'srv-nat') | ipv6 | first }}"
     - name: san
       id: 4
+      extra:
+        - "mtu 9000"
     - name: adm
       id: 10
       dns: "{{ query('ldap', 'ip', 'routeur-sam', 'adm') | ipv4 | first }} {{ query('ldap', 'ip', 'routeur-daniel', 'adm') | ipv4 | first }}"
diff --git a/host_vars/zamok-tmtc.adm.crans.org.yml b/host_vars/zamok-tmtc.adm.crans.org.yml
new file mode 100644
index 00000000..a72d2fd9
--- /dev/null
+++ b/host_vars/zamok-tmtc.adm.crans.org.yml
@@ -0,0 +1,4 @@
+---
+interfaces:
+  adm: eth0
+  san: eth1