diff --git a/gns3server/handlers/dynamips_handler.py b/gns3server/handlers/dynamips_handler.py
index 0b0be6a1..e3ed5d95 100644
--- a/gns3server/handlers/dynamips_handler.py
+++ b/gns3server/handlers/dynamips_handler.py
@@ -54,14 +54,15 @@ class DynamipsHandler:
                                                    request.json.get("dynamips_id"),
                                                    request.json.pop("platform"))
 
-        # set VM options
+        # set VM settings
         for name, value in request.json.items():
             if hasattr(vm, name) and getattr(vm, name) != value:
-                setter = getattr(vm, "set_{}".format(name))
-                if asyncio.iscoroutinefunction(vm.close):
-                    yield from setter(value)
-                else:
-                    setter(value)
+                if hasattr(vm, "set_{}".format(name)):
+                    setter = getattr(vm, "set_{}".format(name))
+                    if asyncio.iscoroutinefunction(vm.close):
+                        yield from setter(value)
+                    else:
+                        setter(value)
 
         response.set_status(201)
         response.json(vm)
@@ -107,10 +108,14 @@ class DynamipsHandler:
         dynamips_manager = Dynamips.instance()
         vm = dynamips_manager.get_vm(request.match_info["vm_id"], project_id=request.match_info["project_id"])
 
-        # FIXME: set options
-        #for name, value in request.json.items():
-        #    if hasattr(vm, name) and getattr(vm, name) != value:
-        #        setattr(vm, name, value)
+        # set VM settings
+        for name, value in request.json.items():
+            if hasattr(vm, name) and getattr(vm, name) != value:
+                setter = getattr(vm, "set_{}".format(name))
+                if asyncio.iscoroutinefunction(vm.close):
+                    yield from setter(value)
+                else:
+                    setter(value)
         response.json(vm)
 
     @classmethod
diff --git a/gns3server/modules/dynamips/dynamips_error.py b/gns3server/modules/dynamips/dynamips_error.py
index 58c306ee..0f64dff6 100644
--- a/gns3server/modules/dynamips/dynamips_error.py
+++ b/gns3server/modules/dynamips/dynamips_error.py
@@ -19,8 +19,10 @@
 Custom exceptions for Dynamips module.
 """
 
+from ..vm_error import VMError
 
-class DynamipsError(Exception):
+
+class DynamipsError(VMError):
 
     def __init__(self, message, original_exception=None):
 
diff --git a/gns3server/modules/dynamips/dynamips_hypervisor.py b/gns3server/modules/dynamips/dynamips_hypervisor.py
index 9a1fb6f4..01a92248 100644
--- a/gns3server/modules/dynamips/dynamips_hypervisor.py
+++ b/gns3server/modules/dynamips/dynamips_hypervisor.py
@@ -128,8 +128,9 @@ class DynamipsHypervisor:
         """
 
         yield from self.send("hypervisor stop")
+        yield from self._writer.drain()
         self._writer.close()
-        self._reader, self._writer = None
+        self._reader = self._writer = None
         self._nio_udp_auto_instances.clear()
 
     @asyncio.coroutine
diff --git a/gns3server/modules/dynamips/hypervisor.py b/gns3server/modules/dynamips/hypervisor.py
index 87e05f75..57afb37a 100644
--- a/gns3server/modules/dynamips/hypervisor.py
+++ b/gns3server/modules/dynamips/hypervisor.py
@@ -128,7 +128,7 @@ class Hypervisor(DynamipsHypervisor):
 
         if self.is_running():
             log.info("Stopping Dynamips process PID={}".format(self._process.pid))
-            DynamipsHypervisor.stop(self)
+            yield from DynamipsHypervisor.stop(self)
             # give some time for the hypervisor to properly stop.
             # time to delete UNIX NIOs for instance.
             yield from asyncio.sleep(0.01)
diff --git a/gns3server/modules/dynamips/nodes/router.py b/gns3server/modules/dynamips/nodes/router.py
index a2ca1f4b..e8c05618 100644
--- a/gns3server/modules/dynamips/nodes/router.py
+++ b/gns3server/modules/dynamips/nodes/router.py
@@ -27,7 +27,6 @@ import asyncio
 import time
 import sys
 import os
-import base64
 
 import logging
 log = logging.getLogger(__name__)
@@ -232,7 +231,7 @@ class Router(BaseVM):
             if elf_header_start != b'\x7fELF\x01\x02\x01':
                 raise DynamipsError('"{}" is not a valid IOS image'.format(self._image))
 
-            yield from self._hypervisor.send('vm start "{}"'.format(self._name))
+            yield from self._hypervisor.send('vm start "{name}"'.format(name=self._name))
             log.info('router "{name}" [{id}] has been started'.format(name=self._name, id=self._id))
 
     @asyncio.coroutine
@@ -243,9 +242,18 @@ class Router(BaseVM):
 
         status = yield from self.get_status()
         if status != "inactive":
-            yield from self._hypervisor.send('vm stop "{name}"'.format(self._name))
+            yield from self._hypervisor.send('vm stop "{name}"'.format(name=self._name))
             log.info('Router "{name}" [{id}] has been stopped'.format(name=self._name, id=self._id))
 
+    @asyncio.coroutine
+    def reload(self):
+        """
+        Reload this router.
+        """
+
+        yield from self.stop()
+        yield from self.start()
+
     @asyncio.coroutine
     def suspend(self):
         """
@@ -254,7 +262,7 @@ class Router(BaseVM):
 
         status = yield from self.get_status()
         if status == "running":
-            yield from self._hypervisor.send('vm suspend "{}"'.format(self._name))
+            yield from self._hypervisor.send('vm suspend "{name}"'.format(name=self._name))
             log.info('Router "{name}" [{id}] has been suspended'.format(name=self._name, id=self._id))
 
     @asyncio.coroutine
@@ -263,7 +271,7 @@ class Router(BaseVM):
         Resumes this suspended router
         """
 
-        yield from self._hypervisor.send('vm resume "{}"'.format(self._name))
+        yield from self._hypervisor.send('vm resume "{name}"'.format(name=self._name))
         log.info('Router "{name}" [{id}] has been resumed'.format(name=self._name, id=self._id))
 
     @asyncio.coroutine