diff --git a/api/serializers.py b/api/serializers.py
index eabcc73a..f925d2bd 100644
--- a/api/serializers.py
+++ b/api/serializers.py
@@ -824,7 +824,7 @@ class SwitchPortSerializer(serializers.ModelSerializer):
         fields = ('short_name', 'model', 'switchbay', 'ports', 'ipv4', 'ipv6',
                   'interfaces_subnet', 'interfaces6_subnet', 'automatic_provision', 'rest_enabled',
                   'web_management_enabled', 'get_radius_key_value', 'get_management_cred_value',
-                  'list_modules')
+                  'get_radius_servers', 'list_modules')
 
 # LOCAL EMAILS
 
diff --git a/machines/models.py b/machines/models.py
index c2012568..97881438 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -448,12 +448,17 @@ class IpType(RevMixin, AclMixin, models.Model):
     @cached_property
     def ip_net_full_info(self):
         """Renvoie les infos du network contenant du range"""
-        return {
-            'network': str(self.ip_network.network),
-            'netmask': str(self.ip_network.netmask),
-            'broadcast': str(self.ip_network.broadcast),
-            'netmask_cidr': str(self.ip_network.prefixlen),
-        }
+        if self.ip_network:
+            return {
+                'network': str(self.ip_network.network),
+                'netmask': str(self.ip_network.netmask),
+                'broadcast': str(self.ip_network.broadcast),
+                'netmask_cidr': str(self.ip_network.prefixlen),
+                'vlan': str(self.vlan),
+                'vlan_id': self.vlan.vlan_id
+            }
+        else:
+            return None
 
     @cached_property
     def complete_prefixv6(self):
diff --git a/preferences/models.py b/preferences/models.py
index f3c8fd7b..e52998cd 100644
--- a/preferences/models.py
+++ b/preferences/models.py
@@ -294,7 +294,7 @@ class OptionalTopologie(AclMixin, PreferencesModel):
         subnet = None
         subnet6 = None
         if self.switchs_ip_type:
-            subnet = self.switchs_ip_type.ip_set_full_info
+            subnet = self.switchs_ip_type.ip_net_full_info or self.switchs_ip_type.ip_set_full_info[0]
             subnet6 = self.switchs_ip_type.ip6_set_full_info
         return {'ntp_servers': return_ips_dict(ntp_servers), 'log_servers': return_ips_dict(log_servers), 'radius_servers': return_ips_dict(radius_servers), 'dhcp_servers': return_ips_dict(dhcp_servers), 'dns_recursive_servers': return_ips_dict(dns_recursive_servers), 'subnet': subnet, 'subnet6': subnet6}
 
diff --git a/topologie/models.py b/topologie/models.py
index c942c93b..0ed4b9dd 100644
--- a/topologie/models.py
+++ b/topologie/models.py
@@ -55,7 +55,13 @@ from preferences.models import (
     RadiusKey,
     SwitchManagementCred
 )
-from machines.models import Machine, regen
+from machines.models import (
+    Machine,
+    regen,
+    Role,
+    MachineType,
+    Ipv6List
+)
 from re2o.mixins import AclMixin, RevMixin
 
 
@@ -321,6 +327,16 @@ class Switch(AclMixin, Machine):
         else:
             return None
 
+    @cached_property
+    def get_radius_servers_objects(self):
+        return Role.all_interfaces_for_roletype("radius-server").filter(machine_type__in=MachineType.objects.filter(interface__in=self.interface_set.all()))
+
+    @cached_property
+    def get_radius_servers(self):
+        def return_ips_dict(interfaces):
+            return {'ipv4' : [str(interface.ipv4) for interface in interfaces], 'ipv6' : Ipv6List.objects.filter(interface__in=interfaces).values_list('ipv6', flat=True)}
+        return return_ips_dict(self.get_radius_servers_objects)
+
     @cached_property
     def get_management_cred(self):
         """Retourne l'objet des creds de managament de ce switch"""
@@ -362,7 +378,7 @@ class Switch(AclMixin, Machine):
     @cached_property
     def interfaces_subnet(self):
         """Return dict ip:subnet for all ip of the switch"""
-        return dict((str(interface.ipv4), interface.machine_type.ip_type.ip_set_full_info) for interface in self.interface_set.all())
+        return dict((str(interface.ipv4), interface.machine_type.ip_type.ip_net_full_info or interface.machine_type.ip_type.ip_set_full_info[0]) for interface in self.interface_set.all())
 
     @cached_property
     def interfaces6_subnet(self):