diff --git a/src/fortygbe.py b/src/fortygbe.py
index adfa6b27..0cd5d37e 100644
--- a/src/fortygbe.py
+++ b/src/fortygbe.py
@@ -36,6 +36,33 @@ def __init__(self, parent, name, address, length_bytes,
                         'multicast_ip'   : 0x20,
                         'multicast_mask' : 0x24}
 
+    @property
+    def ip_address(self):
+        ip = self._wbone_rd(self.address + self.reg_map['ip'])
+        ip_address = IpAddress(ip)
+        return ip_address
+
+    @property
+    def mac(self):
+        gbedata = []
+        for ctr in range(0xC, 0x14, 4):
+            gbedata.append(self._wbone_rd(self.address + ctr))
+        gbebytes = []
+        for d in gbedata:
+            gbebytes.append((d >> 24) & 0xff)
+            gbebytes.append((d >> 16) & 0xff)
+            gbebytes.append((d >> 8) & 0xff)
+            gbebytes.append((d >> 0) & 0xff)
+        pd = gbebytes
+        return Mac('{}:{}:{}:{}:{}:{}'.format(
+                *pd[2:]))
+
+    @property
+    def port(self):
+        en_port = self._wbone_rd(self.address + self.reg_map['fabric_port'])
+        port = en_port & (2 ** 16 - 1)
+        return port
+
     def post_create_update(self, raw_device_info):
         """
         Update the device with information not available at creation.
@@ -99,7 +126,7 @@ def _wbone_wr(self, addr, val):
 
     def fabric_enable(self):
         """
-        Enables 40G corei fabric interface.
+        Enables 40G core fabric interface.
         :return: 
         """
         en_port = self._wbone_rd(self.address + self.reg_map['fabric_en'])
@@ -133,8 +160,7 @@ def get_mac(self):
 
         :return: Mac object
         """
-        details = self.get_gbe_core_details()
-        return details['mac']
+        return self.mac
 
     def get_ip(self):
         """
@@ -142,8 +168,6 @@ def get_ip(self):
 
         :return: IpAddress object
         """
-        ip = self._wbone_rd(self.address + self.reg_map['ip'])
-        self.ip_address = IpAddress(ip)
         return self.ip_address
 
     def get_port(self):
@@ -152,8 +176,6 @@ def get_port(self):
 
         :return:  int
         """
-        en_port = self._wbone_rd(self.address + self.reg_map['fabric_port'])
-        self.port = en_port & (2 ** 16 - 1)
         return self.port
 
     def set_port(self, port):
@@ -170,7 +192,6 @@ def set_port(self, port):
             errmsg = 'Error setting 40gbe port to 0x%04x' % port
             self.logger.error(errmsg)
             raise ValueError(errmsg)
-        self.port = port
 
     def get_gbe_core_details(self, read_arp=False, read_cpu=False):
         """
@@ -230,9 +251,6 @@ def get_gbe_core_details(self, read_arp=False, read_cpu=False):
         if read_cpu:
             # returnval.update(self.get_cpu_details(gbedata))
             self.logger.warn('Retrieving CPU packet buffers not yet implemented.')
-        self.mac = returnval['mac']
-        self.ip_address = returnval['ip']
-        self.port = returnval['fabric_port']
         return returnval
 
     def get_arp_details(self, port_dump=None):
diff --git a/src/gbe.py b/src/gbe.py
index d956c7e4..283b1820 100644
--- a/src/gbe.py
+++ b/src/gbe.py
@@ -20,9 +20,6 @@ def __init__(self, parent, name, address, length_bytes, device_info=None):
         self.name = name
         self.address = address
         self.length_bytes = length_bytes
-        self.mac = None
-        self.ip_address = None
-        self.port = None
         self.fullname = self.parent.host + ':' + self.name
         self.block_info = device_info
         self.process_device_info(device_info)
@@ -34,6 +31,18 @@ def __init__(self, parent, name, address, length_bytes, device_info=None):
         # if self.parent.is_connected():
         #     self._check()
 
+    @property
+    def mac(self):
+        return None
+
+    @property
+    def ip_address(self):
+        return None
+
+    @property
+    def port(self):
+        return None
+
     @classmethod
     def from_device_info(cls, parent, device_name, device_info, memorymap_dict, **kwargs):
         """
@@ -99,7 +108,6 @@ def process_device_info(self, device_info):
         if mac is None or ip_address is None or port is None:
             raise ValueError('%s: 10Gbe interface must '
                              'have mac, ip and port.' % self.fullname)
-        self.setup(mac, ip_address, port)
 
     def setup(self, mac, ipaddress, port):
         """
@@ -109,9 +117,10 @@ def setup(self, mac, ipaddress, port):
         :param ipaddress: String or Integer input
         :param port: String or Integer input
         """
-        self.mac = Mac(mac)
-        self.ip_address = IpAddress(ipaddress)
-        self.port = port if isinstance(port, int) else int(port)
+        raise NotImplementedError('This is no longer required as the mac, '
+                                  'ip_address and port are no longer stored '
+                                  'as attributes. These values are retrieved '
+                                  'from the processing node when required.')
 
     def post_create_update(self, raw_device_info):
         """
diff --git a/src/onegbe.py b/src/onegbe.py
index 09d75abe..c6b4f9e8 100644
--- a/src/onegbe.py
+++ b/src/onegbe.py
@@ -93,6 +93,18 @@ def __init__(self, parent, name, address, length_bytes, device_info=None):
         Gbe.__init__(self, parent, name, address, length_bytes, device_info)
         self.memmap_compliant = self._check_memmap_compliance()
 
+    @property
+    def mac(self):
+        return self.get_gbe_core_details()['mac']
+
+    @property
+    def ip_address(self):
+        return self.get_gbe_core_details()['ip']
+
+    @property
+    def port(self):
+        return self.get_gbe_core_details()['fabric_port']
+
     def _check_memmap_compliance(self):
         """
         Look at the first word of the core's memory map and try to
@@ -162,9 +174,9 @@ def dhcp_start(self):
         """
         Configure this interface, then start a DHCP client on ALL interfaces.
         """
-        if self.mac is None:
+        #if self.mac is None:
             # TODO get MAC from EEPROM serial number and assign here
-            self.mac = '0'
+            # self.mac = '0'
         reply, _ = self.parent.transport.katcprequest(
             name='tap-start', request_timeout=5,
             require_ok=True,
diff --git a/src/tengbe.py b/src/tengbe.py
index d79f5c0c..fff4f629 100644
--- a/src/tengbe.py
+++ b/src/tengbe.py
@@ -93,6 +93,18 @@ def __init__(self, parent, name, address, length_bytes, device_info=None):
         Gbe.__init__(self, parent, name, address, length_bytes, device_info)
         self.memmap_compliant = self._check_memmap_compliance()
 
+    @property
+    def mac(self):
+        return self.get_gbe_core_details()['mac']
+
+    @property
+    def ip_address(self):
+        return self.get_gbe_core_details()['ip']
+
+    @property
+    def port(self):
+        return self.get_gbe_core_details()['fabric_port']
+
     def _check_memmap_compliance(self):
         """
         Look at the first word of the core's memory map and try to
@@ -162,9 +174,9 @@ def dhcp_start(self):
         """
         Configure this interface, then start a DHCP client on ALL interfaces.
         """
-        if self.mac is None:
+        #if self.mac is None:
             # TODO get MAC from EEPROM serial number and assign here
-            self.mac = '0'
+            #self.mac = '0'
         reply, _ = self.parent.transport.katcprequest(
             name='tap-start', request_timeout=5,
             require_ok=True,