diff --git a/gns3server/compute/dynamips/__init__.py b/gns3server/compute/dynamips/__init__.py
index 78e0fb58..f0f75ead 100644
--- a/gns3server/compute/dynamips/__init__.py
+++ b/gns3server/compute/dynamips/__init__.py
@@ -350,7 +350,9 @@ class Dynamips(BaseManager):
                         sock.connect(sa)
             except OSError as e:
                 raise DynamipsError("Could not create an UDP connection to {}:{}: {}".format(rhost, rport, e))
-            nio = NIOUDP(node, lport, rhost, rport, nio_settings.get("filters", {}))
+            nio = NIOUDP(node, lport, rhost, rport)
+            nio.filters = nio_settings.get("filters", {})
+            nio.suspend = nio_settings.get("suspend", False)
         elif nio_settings["type"] == "nio_generic_ethernet":
             ethernet_device = nio_settings["ethernet_device"]
             if sys.platform.startswith("win"):
diff --git a/gns3server/compute/dynamips/nios/nio_udp.py b/gns3server/compute/dynamips/nios/nio_udp.py
index 3cf37818..55714808 100644
--- a/gns3server/compute/dynamips/nios/nio_udp.py
+++ b/gns3server/compute/dynamips/nios/nio_udp.py
@@ -79,12 +79,11 @@ class NIOUDP(NIO):
 
         self._source_nio = nio_udp.NIOUDP(self._local_tunnel_rport,
                                           '127.0.0.1',
-                                          self._local_tunnel_lport,
-                                          {})
+                                          self._local_tunnel_lport)
         self._destination_nio = nio_udp.NIOUDP(self._lport,
                                                self._rhost,
-                                               self._rport,
-                                               self._filters)
+                                               self._rport)
+        self._destination_nio.filters = self._filters
         yield from self._node.add_ubridge_udp_connection(
             self._bridge_name,
             self._source_nio,