diff --git a/.travis.yml b/.travis.yml
index 2440f1dc..883004a4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,19 @@
 language: python
 
-python:
-  - "3.3"
-  - "3.4"
+env:
+  - TOX_ENV=py33
+  - TOX_ENV=py34
+
+before_install:
+  - sudo add-apt-repository ppa:gns3/ppa -y
+  - sudo apt-get update -q
 
 install:
-  - "pip install -r requirements.txt --use-mirrors"
-  - "pip install tox"
+  - pip install tox
+  - sudo apt-get install vpcs dynamips
 
-script: "python setup.py test"
+script:
+  - tox -e $TOX_ENV
 
 branches:
   only:
diff --git a/gns3server/handlers/jsonrpc_websocket.py b/gns3server/handlers/jsonrpc_websocket.py
index 5b18496c..26c96e6a 100644
--- a/gns3server/handlers/jsonrpc_websocket.py
+++ b/gns3server/handlers/jsonrpc_websocket.py
@@ -52,6 +52,9 @@ class JSONRPCWebSocket(tornado.websocket.WebSocketHandler):
         self._session_id = str(uuid.uuid4())
         self.zmq_router = zmq_router
 
+    def check_origin(self, origin):
+        return True
+
     @property
     def session_id(self):
         """
diff --git a/gns3server/version.py b/gns3server/version.py
index c206840a..118c2a4c 100644
--- a/gns3server/version.py
+++ b/gns3server/version.py
@@ -23,5 +23,5 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "1.0beta1"
+__version__ = "1.0beta2-dev1"
 __version_info__ = (1, 0, 0, -99)
diff --git a/requirements.txt b/requirements.txt
index ae4f8b0a..e7e14a4b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 netifaces
 tornado
 pyzmq
-netifaces-py3
 jsonschema
diff --git a/setup.py b/setup.py
index e64cfa3d..78bfa355 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ from setuptools import setup, find_packages
 from setuptools.command.test import test as TestCommand
 
 
-class Tox(TestCommand):
+class PyTest(TestCommand):
 
     def finalize_options(self):
         TestCommand.finalize_options(self)
@@ -29,8 +29,8 @@ class Tox(TestCommand):
 
     def run_tests(self):
         #import here, cause outside the eggs aren't loaded
-        import tox
-        errcode = tox.cmdline(self.test_args)
+        import pytest
+        errcode = pytest.main(self.test_args)
         sys.exit(errcode)
 
 setup(
@@ -38,8 +38,8 @@ setup(
     version=__import__("gns3server").__version__,
     url="http://github.com/GNS3/gns3-server",
     license="GNU General Public License v3 (GPLv3)",
-    tests_require=["tox"],
-    cmdclass={"test": Tox},
+    tests_require=["pytest"],
+    cmdclass={"test": PyTest},
     author="Jeremy Grossmann",
     author_email="package-maintainer@gns3.net",
     description="GNS3 server to asynchronously manage emulators",
diff --git a/tests/dynamips/conftest.py b/tests/dynamips/conftest.py
index fce9f54b..ff70cd58 100644
--- a/tests/dynamips/conftest.py
+++ b/tests/dynamips/conftest.py
@@ -6,10 +6,9 @@ import os
 @pytest.fixture(scope="module")
 def hypervisor(request):
 
-    cwd = os.path.dirname(os.path.abspath(__file__))
-    dynamips_path = os.path.join(cwd, "dynamips.stable")
+    dynamips_path = '/usr/bin/dynamips'
     print("\nStarting Dynamips Hypervisor: {}".format(dynamips_path))
-    manager = HypervisorManager(dynamips_path, "/tmp", "127.0.0.1", 9000)
+    manager = HypervisorManager(dynamips_path, "/tmp", "127.0.0.1")
     hypervisor = manager.start_new_hypervisor()
 
     def stop():
diff --git a/tests/dynamips/test_c7200.py b/tests/dynamips/test_c7200.py
index 7b74cc7f..ed5df69e 100644
--- a/tests/dynamips/test_c7200.py
+++ b/tests/dynamips/test_c7200.py
@@ -29,9 +29,9 @@ def test_router_exists(router_c7200):
 
 def test_npe(router_c7200):
 
-    assert router_c7200.npe == "npe-400"  # default value
-    router_c7200.npe = "npe-200"
-    assert router_c7200.npe == "npe-200"
+    assert router_c7200.npe == "npe-200"  # default value
+    router_c7200.npe = "npe-400"
+    assert router_c7200.npe == "npe-400"
 
 
 def test_midplane(router_c7200):
diff --git a/tests/dynamips/test_hypervisor.py b/tests/dynamips/test_hypervisor.py
index ed0ee2ab..e6c096b8 100644
--- a/tests/dynamips/test_hypervisor.py
+++ b/tests/dynamips/test_hypervisor.py
@@ -1,6 +1,5 @@
 from gns3server.modules.dynamips import Hypervisor
 import time
-import os
 
 
 def test_is_started(hypervisor):
@@ -10,7 +9,7 @@ def test_is_started(hypervisor):
 
 def test_port(hypervisor):
 
-    assert hypervisor.port == 9000
+    assert hypervisor.port == 7200
 
 
 def test_host(hypervisor):
@@ -25,8 +24,7 @@ def test_working_dir(hypervisor):
 
 def test_path(hypervisor):
 
-    cwd = os.path.dirname(os.path.abspath(__file__))
-    dynamips_path = os.path.join(cwd, "dynamips.stable")
+    dynamips_path = '/usr/bin/dynamips'
     assert hypervisor.path == dynamips_path
 
 
@@ -34,11 +32,10 @@ def test_stdout():
 
     # try to launch Dynamips on the same port
     # this will fail so that we can read its stdout/stderr
-    cwd = os.path.dirname(os.path.abspath(__file__))
-    dynamips_path = os.path.join(cwd, "dynamips.stable")
-    hypervisor = Hypervisor(dynamips_path, "/tmp", "172.0.0.1", 7200)
+    dynamips_path = '/usr/bin/dynamips'
+    hypervisor = Hypervisor(dynamips_path, "/tmp", "127.0.0.1", 7200)
     hypervisor.start()
     # give some time for Dynamips to start
-    time.sleep(0.01)
+    time.sleep(0.1)
     output = hypervisor.read_stdout()
     assert output
diff --git a/tests/dynamips/test_hypervisor_manager.py b/tests/dynamips/test_hypervisor_manager.py
index f670641c..adaa79a2 100644
--- a/tests/dynamips/test_hypervisor_manager.py
+++ b/tests/dynamips/test_hypervisor_manager.py
@@ -7,10 +7,9 @@ import os
 @pytest.fixture(scope="module")
 def hypervisor_manager(request):
 
-    cwd = os.path.dirname(os.path.abspath(__file__))
-    dynamips_path = os.path.join(cwd, "dynamips.stable")
+    dynamips_path = '/usr/bin/dynamips'
     print("\nStarting Dynamips Hypervisor: {}".format(dynamips_path))
-    manager = HypervisorManager(dynamips_path, "/tmp", "127.0.0.1", 9000)
+    manager = HypervisorManager(dynamips_path, "/tmp", "127.0.0.1")
 
     #manager.start_new_hypervisor()
 
diff --git a/tests/dynamips/test_router.py b/tests/dynamips/test_router.py
index 1affa539..ebf9835c 100644
--- a/tests/dynamips/test_router.py
+++ b/tests/dynamips/test_router.py
@@ -9,7 +9,7 @@ import base64
 @pytest.fixture
 def router(request, hypervisor):
 
-    router = Router(hypervisor, "router", "c3725")
+    router = Router(hypervisor, "router", platform="c3725")
     request.addfinalizer(router.delete)
     return router
 
@@ -127,9 +127,9 @@ def test_idlepc(router):
 
 def test_idlemax(router):
 
-    assert router.idlemax == 1500  # default value
-    router.idlemax = 500
-    assert router.idlemax == 500
+    assert router.idlemax == 500  # default value
+    router.idlemax = 1500
+    assert router.idlemax == 1500
 
 
 def test_idlesleep(router):
@@ -172,7 +172,7 @@ def test_confreg(router):
 
 def test_console(router):
 
-    assert router.console == router.hypervisor.baseconsole + router.id
+    assert router.console == 2001
     new_console_port = router.console + 100
     router.console = new_console_port
     assert router.console == new_console_port
@@ -180,7 +180,7 @@ def test_console(router):
 
 def test_aux(router):
 
-    assert router.aux == router.hypervisor.baseaux + router.id
+    assert router.aux == 2501
     new_aux_port = router.aux + 100
     router.aux = new_aux_port
     assert router.aux == new_aux_port
diff --git a/tests/iou/test_iou_device.py b/tests/iou/test_iou_device.py
index 0749c97f..58581de9 100644
--- a/tests/iou/test_iou_device.py
+++ b/tests/iou/test_iou_device.py
@@ -3,17 +3,28 @@ import os
 import pytest
 
 
+def no_iou():
+    cwd = os.path.dirname(os.path.abspath(__file__))
+    iou_path = os.path.join(cwd, "i86bi_linux-ipbase-ms-12.4.bin")
+
+    if os.path.isfile(iou_path):
+        return False
+    else:
+        return True
+
+
 @pytest.fixture(scope="session")
 def iou(request):
 
     cwd = os.path.dirname(os.path.abspath(__file__))
     iou_path = os.path.join(cwd, "i86bi_linux-ipbase-ms-12.4.bin")
-    iou_device = IOUDevice(iou_path, "/tmp")
+    iou_device = IOUDevice("IOU1", iou_path, "/tmp")
     iou_device.start()
     request.addfinalizer(iou_device.delete)
     return iou_device
 
 
+@pytest.mark.skipif(no_iou(), reason="IOU Image not available")
 def test_iou_is_started(iou):
 
     print(iou.command())
@@ -21,6 +32,7 @@ def test_iou_is_started(iou):
     assert iou.is_running()
 
 
+@pytest.mark.skipif(no_iou(), reason="IOU Image not available")
 def test_iou_restart(iou):
 
     iou.stop()
diff --git a/tests/vpcs/test_vpcs_device.py b/tests/vpcs/test_vpcs_device.py
index 13609506..781166b4 100644
--- a/tests/vpcs/test_vpcs_device.py
+++ b/tests/vpcs/test_vpcs_device.py
@@ -6,9 +6,13 @@ import pytest
 @pytest.fixture(scope="session")
 def vpcs(request):
 
-    cwd = os.path.dirname(os.path.abspath(__file__))
-    vpcs_path = os.path.join(cwd, "vpcs")
-    vpcs_device = VPCSDevice(vpcs_path, "/tmp")
+    if os.path.isfile("/usr/bin/vpcs"):
+        vpcs_path = "/usr/bin/vpcs"
+    else:
+        cwd = os.path.dirname(os.path.abspath(__file__))
+        vpcs_path = os.path.join(cwd, "vpcs")
+    vpcs_device = VPCSDevice("VPCS1", vpcs_path, "/tmp")
+    vpcs_device.port_add_nio_binding(0, 'nio_tap:tap0')
     vpcs_device.start()
     request.addfinalizer(vpcs_device.delete)
     return vpcs_device
diff --git a/tox.ini b/tox.ini
index b10796da..200e7ce4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,6 +2,6 @@
 envlist = py33, py34
 
 [testenv]
-commands = py.test [] -s tests
+commands = python setup.py test
 deps = -rdev-requirements.txt