diff --git a/tests/atests/common/authentication.py b/tests/atests/common/authentication.py
new file mode 100644
index 0000000..6bbc669
--- /dev/null
+++ b/tests/atests/common/authentication.py
@@ -0,0 +1,158 @@
+#
+# Copyright 2018 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+vOLT-HA Authentication Test Case module
+"""
+
+import time
+import os
+import subprocess
+import commands
+import testCaseUtils
+import logging
+import signal
+
+class Authentication(object):
+
+    """
+    This class implements voltha authentication test case
+    """
+    AUTHENTICATE_FILENAME = 'voltha_authenticate.log'
+    
+    def __init__(self):
+        self.dirs = {}
+        self.dirs ['log'] = None
+        self.dirs ['root'] = None
+        self.dirs ['voltha'] = None
+        
+        self.__rgName = None
+        self.__radiusName = None
+        self.__radiusIp = None
+        
+    def aSetLogDirs(self, rootDir, volthaDir, logDir):
+        testCaseUtils.configDirs(self, logDir, rootDir, volthaDir)
+
+    def discover_rg_pod_name(self):
+        self.__rgName = testCaseUtils.extractPodName('rg-').strip()
+         
+    def discover_freeradius_pod_name(self):
+        self.__radiusName = testCaseUtils.extractPodName('freeradius').strip()
+        logging.info ('freeradius Name = %s' % self.__radiusName)
+        
+    def discover_freeradius_ip_addr(self):
+        ipAddr = testCaseUtils.extractRadiusIpAddr(self.__radiusName)
+        assert ipAddr, 'No IP address listed for freeradius'
+        self.__radiusIp = ipAddr.strip()
+        logging.info('freeradius IP = %s' % self.__radiusIp)
+        
+    def set_current_freeradius_ip_in_aaa_json(self):
+        status = testCaseUtils.modifyRadiusIpInJsonUsingSed(self, self.__radiusIp)
+        assertFalse = 'Setting Radius Ip in Json File did not return Success'
+          
+    def alter_aaa_application_configuration_in_onos_using_aaa_json(self):
+        logging.info ('Altering the Onos NetCfg AAA apps with Freeradius IP address')
+        logging.debug ('curl --user karaf:karaf -X POST -H "Content-Type: application/json" '
+            'http://localhost:30120/onos/v1/network/configuration/apps/ -d @%s/tests/atests/build/aaa_json'
+            % testCaseUtils.getDir(self, 'voltha'))
+        os.system('curl --user karaf:karaf -X POST -H "Content-Type: application/json" '
+            'http://localhost:30120/onos/v1/network/configuration/apps/ -d @%s/tests/atests/build/aaa_json'
+            % testCaseUtils.getDir(self, 'voltha'))
+     
+    def execute_authenticatication_on_rg(self):
+        logging.info ('Running Radius Authentication from RG')
+        process_output = open('%s/%s' % (testCaseUtils.getDir(self, 'log'), self.AUTHENTICATE_FILENAME), 'w')
+        proc1 = subprocess.Popen(['/usr/bin/kubectl', 'exec', '-n', 'voltha', self.__rgName, '--', 'bash', '-c', \
+                                  '/sbin/wpa_supplicant -Dwired -ieth0 -c /etc/wpa_supplicant/wpa_supplicant.conf'],
+                                 stdout=process_output,
+                                 stderr=process_output)
+        time.sleep(15)
+        procPidSupplicant1 = subprocess.Popen(['/usr/bin/kubectl', 'exec', '-n', 'voltha', self.__rgName, '--', 'ps', '-ef'],
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        procPidSupplicant2 = subprocess.Popen(['grep', '-e', '/sbin/wpa_supplicant'], stdin=procPidSupplicant1.stdout,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        procPidSupplicant3 = subprocess.Popen(['awk', "{print $2}"], stdin=procPidSupplicant2.stdout,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+
+        procPidSupplicant1.stdout.close()
+        procPidSupplicant2.stdout.close()
+
+        out, err = procPidSupplicant3.communicate()
+        supplicantPid = out.strip()
+        
+        procKillSupplicant1 = subprocess.Popen(['/usr/bin/kubectl', 'exec', '-n', 'voltha', self.__rgName, '--', 'kill', supplicantPid],
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        out, err = procKillSupplicant1.communicate()
+
+        procPidBash1 = subprocess.Popen(['/usr/bin/kubectl', 'exec', '-n', 'voltha', self.__rgName, '--', 'ps', '-ef'],
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        procPidBash2 = subprocess.Popen(['grep', '-e', '/bin/bash'], stdin=procPidBash1.stdout,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        procPidBash3 = subprocess.Popen(['awk', "{print $2}"], stdin=procPidBash2.stdout,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+
+        procPidBash1.stdout.close()
+        procPidBash2.stdout.close()
+
+        out, err = procPidBash3.communicate()
+        bashPid = out.strip()
+        
+        procKillBash1 = subprocess.Popen(['/usr/bin/kubectl', 'exec', '-n', 'voltha', self.__rgName, '--', 'kill', '-9', bashPid],
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        out, err = procKillBash1.communicate()
+
+        process_output.close()       
+
+        testCaseUtils.printLogFile(self, self.AUTHENTICATE_FILENAME)
+        
+    def verify_authentication_should_have_started(self):
+        statusLines = testCaseUtils.get_fields_from_grep_command(self, 'CTRL-EVENT-EAP-STARTED', self.AUTHENTICATE_FILENAME)
+        assert statusLines, 'Authentication was not started'
+        
+    def verify_authentication_should_have_completed(self):
+        statusLines = testCaseUtils.get_fields_from_grep_command(self, 'CTRL-EVENT-EAP-SUCCESS', self.AUTHENTICATE_FILENAME)
+        assert statusLines, 'Authentication was not completed successfully'
+
+    def verify_authentication_should_have_disconnected(self):
+        statusLines = testCaseUtils.get_fields_from_grep_command(self, 'CTRL-EVENT-DISCONNECTED', self.AUTHENTICATE_FILENAME)
+        assert statusLines, 'Authentication was not disconnected'
+
+    def verify_authentication_should_have_terminated(self):
+        statusLines = testCaseUtils.get_fields_from_grep_command(self, 'CTRL-EVENT-TERMINATING', self.AUTHENTICATE_FILENAME)
+        assert statusLines, 'Authentication was not terminated'
+       
+def runTest(rootDir, volthaDir, logDir):
+    auth = Authentication()
+    auth.aSetLogDirs(rootDir, volthaDir, logDir)
+    auth.discover_rg_pod_name()
+    auth.discover_freeradius_pod_name()
+    auth.discover_freeradius_ip_addr()
+    auth.set_current_freeradius_ip_in_aaa_json()
+    auth.alter_aaa_application_configuration_in_onos_using_aaa_json()
+    auth.execute_authenticatication_on_rg()
+    auth.verify_authentication_should_have_started()
+    auth.verify_authentication_should_have_completed()
+    auth.verify_authentication_should_have_disconnected()
+    auth.verify_authentication_should_have_terminated()
+