diff --git a/Makefile b/Makefile
index 53ede91..338cf59 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ virtualenv:
         netaddr jinja2
 
 lint: virtualenv
-	.venv/bin/flake8 --exclude hooks/charmhelpers hooks unit_tests tests
+	.venv/bin/flake8 --exclude hooks/charmhelpers hooks unit_tests tests --ignore E402
 	@charm proof
 
 unit_test: virtualenv
diff --git a/config.yaml b/config.yaml
index 3cd0527..c450253 100644
--- a/config.yaml
+++ b/config.yaml
@@ -11,6 +11,24 @@ options:
     type: string
     default: 'juju-br0'
     description: The interface connected to PLUMgrid Managment network.
+  os-data-network:
+    type: string
+    default:
+    description: |
+      The IP address and netmask of the OpenStack Data network (e.g.,
+      192.168.0.0/24)
+      .
+      This network will be used for tenant network traffic in overlay
+      networks.
+  fabric-interfaces:
+    default: 'MANAGEMENT'
+    type: string
+    description: |
+       Interfaces that will provide fabric connectivity on the director nodes.
+       Provided in form of json in a string. These interfaces have to be connected 
+       to the os-data-network specified in the config. Default value is MANAGEMENT which
+       will configure the management interface as the fabric interface on each
+       director.
   network-device-mtu:
     type: string
     default: '1580'
diff --git a/hooks/pg_dir_context.py b/hooks/pg_dir_context.py
index f183a4d..3ca7b46 100644
--- a/hooks/pg_dir_context.py
+++ b/hooks/pg_dir_context.py
@@ -3,6 +3,10 @@
 # This file contains the class that generates context
 # for PLUMgrid template files.
 
+import re
+from charmhelpers.contrib.openstack import context
+from charmhelpers.contrib.openstack.utils import get_host_ip
+from charmhelpers.contrib.network.ip import get_address_in_network
 from charmhelpers.core.hookenv import (
     config,
     unit_get,
@@ -12,12 +16,10 @@ from charmhelpers.core.hookenv import (
     related_units,
     relation_get,
 )
-from charmhelpers.contrib.openstack import context
-from charmhelpers.contrib.openstack.utils import get_host_ip
-from charmhelpers.contrib.network.ip import get_address_in_network
-
-import re
-from socket import gethostname as get_unit_hostname
+from socket import (
+    gethostname,
+    getfqdn
+)
 
 
 def _pg_dir_ips():
@@ -71,6 +73,7 @@ class PGDirContext(context.NeutronContext):
         pg_dir_ips = _pg_dir_ips()
         pg_dir_ips.append(str(get_address_in_network(network=None,
                           fallback=get_host_ip(unit_get('private-address')))))
+        pg_dir_ips = sorted(pg_dir_ips)
         pg_ctxt['director_ips'] = pg_dir_ips
         pg_dir_ips_string = ''
         single_ip = True
@@ -82,10 +85,13 @@ class PGDirContext(context.NeutronContext):
                 pg_dir_ips_string = pg_dir_ips_string + ',' + str(ip)
         pg_ctxt['director_ips_string'] = pg_dir_ips_string
         pg_ctxt['virtual_ip'] = conf['plumgrid-virtual-ip']
-        pg_ctxt['pg_hostname'] = "pg-director"
-        from pg_dir_utils import get_mgmt_interface
+        unit_hostname = gethostname()
+        pg_ctxt['pg_hostname'] = unit_hostname
+        pg_ctxt['pg_fqdn'] = getfqdn()
+        from pg_dir_utils import get_mgmt_interface, get_fabric_interface
         pg_ctxt['interface'] = get_mgmt_interface()
-        pg_ctxt['label'] = get_unit_hostname()
+        pg_ctxt['fabric_interface'] = get_fabric_interface()
+        pg_ctxt['label'] = unit_hostname
         pg_ctxt['fabric_mode'] = 'host'
         virtual_ip_array = re.split('\.', conf['plumgrid-virtual-ip'])
         pg_ctxt['virtual_router_id'] = virtual_ip_array[3]
diff --git a/hooks/pg_dir_hooks.py b/hooks/pg_dir_hooks.py
index 3e4db18..47ea23e 100755
--- a/hooks/pg_dir_hooks.py
+++ b/hooks/pg_dir_hooks.py
@@ -5,8 +5,6 @@
 # The hooks of this charm have been symlinked to functions
 # in this file.
 
-import sys
-import time
 from charmhelpers.core.hookenv import (
     Hooks,
     UnregisteredHookError,
@@ -30,8 +28,13 @@ from pg_dir_utils import (
     ensure_mtu,
     add_lcm_key,
     post_pg_license,
+    fabric_interface_changed,
+    load_iptables
 )
 
+import sys
+import time
+
 hooks = Hooks()
 CONFIGS = register_configs()
 
@@ -41,13 +44,14 @@ def install():
     '''
     Install hook is run when the charm is first deployed on a node.
     '''
+    load_iptables()
     configure_sources(update=True)
     pkgs = determine_packages()
     for pkg in pkgs:
         apt_install(pkg, options=['--force-yes'], fatal=True)
     load_iovisor()
     ensure_mtu()
-    add_lcm_key()
+    CONFIGS.write_all()
 
 
 @hooks.hook('director-relation-joined')
@@ -65,12 +69,22 @@ def config_changed():
     This hook is run when a config parameter is changed.
     It also runs on node reboot.
     '''
-    if post_pg_license():
-        log("PLUMgrid License Posted")
-        return 1
     if add_lcm_key():
         log("PLUMgrid LCM Key added")
         return 1
+    charm_config = config()
+    if charm_config.changed('plumgrid-license-key'):
+        if post_pg_license():
+            log("PLUMgrid License Posted")
+        return 1
+    if charm_config.changed('fabric-interfaces'):
+        if not fabric_interface_changed():
+            log("Fabric interface already set")
+            return 1
+    if charm_config.changed('os-data-network'):
+        if charm_config['fabric-interfaces'] == 'MANAGEMENT':
+            log('Fabric running on managment network')
+            return 1
     stop_pg()
     configure_sources(update=True)
     pkgs = determine_packages()
@@ -98,6 +112,14 @@ def start():
             time.sleep(15)
 
 
+@hooks.hook('upgrade-charm')
+def upgrade_charm():
+    '''
+    This hook is run when the charm is upgraded
+    '''
+    load_iptables()
+
+
 @hooks.hook('stop')
 def stop():
     '''
diff --git a/hooks/pg_dir_utils.py b/hooks/pg_dir_utils.py
index 63bba10..b22c760 100644
--- a/hooks/pg_dir_utils.py
+++ b/hooks/pg_dir_utils.py
@@ -2,8 +2,18 @@
 
 # This file contains functions used by the hooks to deploy PLUMgrid Director.
 
+import pg_dir_context
+import subprocess
+import time
+import os
+import json
 from charmhelpers.contrib.openstack.neutron import neutron_plugin_attribute
 from copy import deepcopy
+from charmhelpers.contrib.openstack import templating
+from charmhelpers.core.host import set_nic_mtu
+from collections import OrderedDict
+from charmhelpers.contrib.storage.linux.ceph import modprobe
+from socket import gethostname as get_unit_hostname
 from charmhelpers.core.hookenv import (
     log,
     config,
@@ -13,15 +23,14 @@ from charmhelpers.contrib.network.ip import (
     get_iface_from_addr,
     get_bridges,
     get_bridge_nics,
-    is_ip
+    is_ip,
+    is_address_in_network,
+    get_iface_addr
 )
 from charmhelpers.fetch import (
-    apt_cache
+    apt_cache,
+    apt_install
 )
-from charmhelpers.contrib.openstack import templating
-from charmhelpers.core.host import set_nic_mtu
-from collections import OrderedDict
-from charmhelpers.contrib.storage.linux.ceph import modprobe
 from charmhelpers.contrib.openstack.utils import (
     os_release,
 )
@@ -29,17 +38,11 @@ from charmhelpers.core.host import (
     service_start,
     service_stop,
 )
-import pg_dir_context
-import subprocess
-import time
-import os
-import json
 
 LXC_CONF = '/etc/libvirt/lxc.conf'
 TEMPLATES = 'templates/'
 PG_LXC_DATA_PATH = '/var/lib/libvirt/filesystems/plumgrid-data'
 PG_LXC_PATH = '/var/lib/libvirt/filesystems/plumgrid'
-
 PG_CONF = '%s/conf/pg/plumgrid.conf' % PG_LXC_DATA_PATH
 PG_KA_CONF = '%s/conf/etc/keepalived.conf' % PG_LXC_DATA_PATH
 PG_DEF_CONF = '%s/conf/pg/nginx.conf' % PG_LXC_DATA_PATH
@@ -49,7 +52,6 @@ PG_IFCS_CONF = '%s/conf/pg/ifcs.conf' % PG_LXC_DATA_PATH
 AUTH_KEY_PATH = '%s/root/.ssh/authorized_keys' % PG_LXC_DATA_PATH
 TEMP_LICENSE_FILE = '/tmp/license'
 
-
 BASE_RESOURCE_MAP = OrderedDict([
     (PG_KA_CONF, {
         'services': ['plumgrid'],
@@ -140,7 +142,6 @@ def restart_pg():
     '''
     service_stop('plumgrid')
     time.sleep(2)
-    _exec_cmd(cmd=['iptables', '-F'])
     service_start('plumgrid')
     time.sleep(5)
 
@@ -169,22 +170,23 @@ def remove_iovisor():
     time.sleep(1)
 
 
+def interface_exists(interface):
+    '''
+    Checks if interface exists on node.
+    '''
+    try:
+        subprocess.check_call(['ip', 'link', 'show', interface],
+                              stdout=open(os.devnull, 'w'),
+                              stderr=subprocess.STDOUT)
+    except subprocess.CalledProcessError:
+        return False
+    return True
+
+
 def get_mgmt_interface():
     '''
     Returns the managment interface.
     '''
-    def interface_exists(interface):
-        '''
-        Checks if interface exists on node.
-        '''
-        try:
-            subprocess.check_call(['ip', 'link', 'show', interface],
-                                  stdout=open(os.devnull, 'w'),
-                                  stderr=subprocess.STDOUT)
-        except subprocess.CalledProcessError:
-            return False
-        return True
-
     mgmt_interface = config('mgmt-interface')
     if interface_exists(mgmt_interface):
         return mgmt_interface
@@ -194,17 +196,65 @@ def get_mgmt_interface():
         return get_iface_from_addr(unit_get('private-address'))
 
 
+def fabric_interface_changed():
+    '''
+    Returns true if interface for node changed.
+    '''
+    fabric_interface = get_fabric_interface()
+    try:
+        with open(PG_IFCS_CONF, 'r') as ifcs:
+            for line in ifcs:
+                if 'fabric_core' in line:
+                    if line.split()[0] == fabric_interface:
+                        return False
+    except IOError:
+        return True
+    return True
+
+
+def get_fabric_interface():
+    '''
+    Returns the fabric interface.
+    '''
+    fabric_interfaces = config('fabric-interfaces')
+    if fabric_interfaces == 'MANAGEMENT':
+        return get_mgmt_interface()
+    else:
+        try:
+            all_fabric_interfaces = json.loads(fabric_interfaces)
+        except ValueError:
+            raise ValueError('Invalid json provided for fabric interfaces')
+        hostname = get_unit_hostname()
+        if hostname in all_fabric_interfaces:
+            node_fabric_interface = all_fabric_interfaces[hostname]
+        elif 'DEFAULT' in all_fabric_interfaces:
+            node_fabric_interface = all_fabric_interfaces['DEFAULT']
+        else:
+            raise ValueError('No fabric interface provided for node')
+        if interface_exists(node_fabric_interface):
+            if is_address_in_network(config('os-data-network'),
+                                     get_iface_addr(node_fabric_interface)[0]):
+                return node_fabric_interface
+            else:
+                raise ValueError('Fabric interface not in fabric network')
+        else:
+            log('Provided fabric interface %s does not exist'
+                % node_fabric_interface)
+            raise ValueError('Provided fabric interface does not exist')
+        return node_fabric_interface
+
+
 def ensure_mtu():
     '''
     Ensures required MTU of the underlying networking of the node.
     '''
     interface_mtu = config('network-device-mtu')
-    mgmt_interface = get_mgmt_interface()
-    if mgmt_interface in get_bridges():
-        attached_interfaces = get_bridge_nics(mgmt_interface)
+    fabric_interface = get_fabric_interface()
+    if fabric_interface in get_bridges():
+        attached_interfaces = get_bridge_nics(fabric_interface)
         for interface in attached_interfaces:
             set_nic_mtu(interface, interface_mtu)
-    set_nic_mtu(mgmt_interface, interface_mtu)
+    set_nic_mtu(fabric_interface, interface_mtu)
 
 
 def _exec_cmd(cmd=None, error_msg='Command exited with ERRORs', fatal=False):
@@ -275,8 +325,7 @@ def post_pg_license():
         'plumgrid:plumgrid',
         LICENSE_POST_PATH,
         '-d',
-        json.dumps(license)
-        ]
+        json.dumps(license)]
     licence_get_cmd = [PG_CURL, '-u', 'plumgrid:plumgrid', LICENSE_GET_PATH]
     try:
         old_license = subprocess.check_output(licence_get_cmd)
@@ -290,3 +339,55 @@ def post_pg_license():
         log('No change in PLUMgrid License')
         return 0
     return 1
+
+
+def load_iptables():
+    '''
+    Loads iptables rules to allow all PLUMgrid communication.
+    '''
+    network = get_cidr_from_iface(get_mgmt_interface())
+    if network:
+        _exec_cmd(['sudo', 'iptables', '-A', 'INPUT', '-p', 'tcp',
+                   '-j', 'ACCEPT', '-s', network, '-d',
+                   network, '-m', 'state', '--state', 'NEW'])
+        _exec_cmd(['sudo', 'iptables', '-A', 'INPUT', '-p', 'udp', '-j',
+                   'ACCEPT', '-s', network, '-d', network,
+                   '-m', 'state', '--state', 'NEW'])
+        _exec_cmd(['sudo', 'iptables', '-I', 'INPUT', '-s', network,
+                   '-d', '224.0.0.18/32', '-j', 'ACCEPT'])
+    _exec_cmd(['sudo', 'iptables', '-I', 'INPUT', '-p', 'vrrp', '-j',
+               'ACCEPT'])
+    _exec_cmd(['sudo', 'iptables', '-A', 'INPUT', '-p', 'tcp', '-j',
+               'ACCEPT', '-d', config('plumgrid-virtual-ip'), '-m',
+               'state', '--state', 'NEW'])
+    apt_install('iptables-persistent')
+
+
+def get_cidr_from_iface(interface):
+    '''
+    Determines Network CIDR from interface.
+    '''
+    if not interface:
+        return None
+    apt_install('ohai')
+    try:
+        os_info = subprocess.check_output(['ohai', '-l', 'fatal'])
+    except OSError:
+        log('Unable to get operating system information')
+        return None
+    try:
+        os_info_json = json.loads(os_info)
+    except ValueError:
+        log('Unable to determine network')
+        return None
+    device = os_info_json['network']['interfaces'].get(interface)
+    if device is not None:
+        if device.get('routes'):
+            routes = device['routes']
+            for net in routes:
+                if 'scope' in net:
+                    return net.get('destination')
+        else:
+            return None
+    else:
+        return None
diff --git a/hooks/upgrade-charm b/hooks/upgrade-charm
new file mode 120000
index 0000000..6530c5a
--- /dev/null
+++ b/hooks/upgrade-charm
@@ -0,0 +1 @@
+pg_dir_hooks.py
\ No newline at end of file
diff --git a/templates/kilo/hosts b/templates/kilo/hosts
index 99e3be5..e19e49d 100644
--- a/templates/kilo/hosts
+++ b/templates/kilo/hosts
@@ -1,5 +1,5 @@
 127.0.0.1   localhost
-127.0.1.1   {{ pg_hostname }}
+127.0.1.1   {{ pg_fqdn }}   {{ pg_hostname }}
 
 # The following lines are desirable for IPv6 capable hosts
 ::1     ip6-localhost ip6-loopback
diff --git a/templates/kilo/ifcs.conf b/templates/kilo/ifcs.conf
index 2ac1e59..9659932 100644
--- a/templates/kilo/ifcs.conf
+++ b/templates/kilo/ifcs.conf
@@ -1,2 +1,2 @@
-{{ interface }} = fabric_core host
+{{ fabric_interface }} = fabric_core host
 
diff --git a/templates/kilo/nginx.conf b/templates/kilo/nginx.conf
index 179bb67..00f58f1 100644
--- a/templates/kilo/nginx.conf
+++ b/templates/kilo/nginx.conf
@@ -12,6 +12,10 @@ upstream pgCli {
   server {{ virtual_ip }}:3000;
 }
 
+upstream pgMW {
+  server 127.0.0.1:4000;
+}
+
 map $http_upgrade $connection_upgrade {
   default upgrade;
   '' close;
@@ -58,6 +62,19 @@ server {
     proxy_set_header Host $host;
   }
 
+  location /mwv0 {
+    proxy_pass http://pgMW;
+    proxy_redirect off;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+    proxy_set_header Host $host;
+  }
+
+  location /cloudApex/ {
+    index index.html;
+  }
+
   location /vtap/ {
     alias /opt/pg/vtap;
   }
diff --git a/unit_tests/test_pg_dir_context.py b/unit_tests/test_pg_dir_context.py
index 33019de..9d32722 100644
--- a/unit_tests/test_pg_dir_context.py
+++ b/unit_tests/test_pg_dir_context.py
@@ -8,7 +8,8 @@ TO_PATCH = [
     'config',
     'unit_get',
     'get_host_ip',
-    'get_unit_hostname',
+    'gethostname',
+    'getfqdn'
 ]
 
 
@@ -46,11 +47,12 @@ class PGDirContextTest(CharmTestCase):
     @patch.object(charmhelpers.contrib.openstack.context, 'unit_private_ip')
     @patch.object(context, '_pg_dir_ips')
     @patch.object(utils, 'get_mgmt_interface')
-    def test_neutroncc_context_api_rel(self, _mgmt_int, _pg_dir_ips,
-                                       _unit_priv_ip, _npa, _ens_pkgs,
-                                       _save_ff, _https, _is_clus,
-                                       _unit_get, _config, _runits, _rids,
-                                       _rget):
+    @patch.object(utils, 'get_fabric_interface')
+    def test_neutroncc_context_api_rel(self, _fabric_int, _mgmt_int,
+                                       _pg_dir_ips, _unit_priv_ip, _npa,
+                                       _ens_pkgs, _save_ff, _https,
+                                       _is_clus, _unit_get, _config,
+                                       _runits, _rids, _rget):
         def mock_npa(plugin, section, manager):
             if section == "driver":
                 return "neutron.randomdriver"
@@ -70,10 +72,12 @@ class PGDirContextTest(CharmTestCase):
         _npa.side_effect = mock_npa
         _unit_get.return_value = '192.168.100.201'
         _unit_priv_ip.return_value = '192.168.100.201'
-        self.get_unit_hostname.return_value = 'node0'
+        self.gethostname.return_value = 'node0'
+        self.getfqdn.return_value = 'node0.maas'
         self.get_host_ip.return_value = '192.168.100.201'
         _pg_dir_ips.return_value = ['192.168.100.202', '192.168.100.203']
         _mgmt_int.return_value = 'juju-br0'
+        _fabric_int.return_value = 'juju-br0'
         napi_ctxt = context.PGDirContext()
         expect = {
             'config': 'neutron.randomconfig',
@@ -84,14 +88,16 @@ class PGDirContextTest(CharmTestCase):
             'neutron_security_groups': None,
             'neutron_url': 'https://None:9696',
             'virtual_ip': '192.168.100.250',
-            'pg_hostname': 'pg-director',
+            'pg_hostname': 'node0',
+            'pg_fqdn': 'node0.maas',
             'interface': 'juju-br0',
+            'fabric_interface': 'juju-br0',
             'label': 'node0',
             'fabric_mode': 'host',
             'virtual_router_id': '250',
-            'director_ips': ['192.168.100.202', '192.168.100.203',
-                             '192.168.100.201'],
+            'director_ips': ['192.168.100.201', '192.168.100.202',
+                             '192.168.100.203'],
             'director_ips_string':
-            '192.168.100.202,192.168.100.203,192.168.100.201',
+            '192.168.100.201,192.168.100.202,192.168.100.203',
         }
         self.assertEquals(expect, napi_ctxt())
diff --git a/unit_tests/test_pg_dir_hooks.py b/unit_tests/test_pg_dir_hooks.py
index 2fa95a4..04065bd 100644
--- a/unit_tests/test_pg_dir_hooks.py
+++ b/unit_tests/test_pg_dir_hooks.py
@@ -1,5 +1,7 @@
 from mock import MagicMock, patch, call
+
 from test_utils import CharmTestCase
+
 with patch('charmhelpers.core.hookenv.config') as config:
     config.return_value = 'neutron'
     import pg_dir_utils as utils
@@ -29,7 +31,8 @@ TO_PATCH = [
     'add_lcm_key',
     'determine_packages',
     'post_pg_license',
-    'config'
+    'config',
+    'load_iptables'
 ]
 NEUTRON_CONF_DIR = "/etc/neutron"
 
@@ -58,25 +61,10 @@ class PGDirHooksTests(CharmTestCase):
         ])
         self.load_iovisor.assert_called_with()
         self.ensure_mtu.assert_called_with()
-        self.add_lcm_key.assert_called_with()
 
     def test_config_changed_hook(self):
-        _pkgs = ['plumgrid-lxc', 'iovisor-dkms']
-        self.add_lcm_key.return_value = 0
-        self.post_pg_license.return_value = 0
-        self.determine_packages.return_value = [_pkgs]
+        self.add_lcm_key.return_value = 1
         self._call_hook('config-changed')
-        self.stop_pg.assert_called_with()
-        self.configure_sources.assert_called_with(update=True)
-        self.apt_install.assert_has_calls([
-            call(_pkgs, fatal=True,
-                 options=['--force-yes']),
-        ])
-        self.load_iovisor.assert_called_with()
-        self.ensure_mtu.assert_called_with()
-
-        self.CONFIGS.write_all.assert_called_with()
-        self.restart_pg.assert_called_with()
 
     def test_start(self):
         self._call_hook('start')