Get the radius ip for the docker network if appropriate before defaulting to bridge ip

Change-Id: I0d80b6a7fa246aef5aca161e346dc56bd060f1cc
diff --git a/src/test/setup/cord-test.py b/src/test/setup/cord-test.py
index 90004cb..7afc2d8 100755
--- a/src/test/setup/cord-test.py
+++ b/src/test/setup/cord-test.py
@@ -491,7 +491,7 @@
         ##Start Radius container
         radius = Radius(prefix = Container.IMAGE_PREFIX, update = update_map['radius'],
                         network = test_manifest.docker_network)
-        radius_ip = radius.ip()
+        radius_ip = radius.ip(network = test_manifest.docker_network)
 
     print('Radius server running with IP %s' %radius_ip)
 
@@ -742,7 +742,7 @@
     if radius_ip is None:
         radius = Radius(prefix = Container.IMAGE_PREFIX, update = update_map['radius'],
                         network = test_manifest.docker_network)
-        radius_ip = radius.ip()
+        radius_ip = radius.ip(network = test_manifest.docker_network)
 
     print('Radius server running with IP %s' %radius_ip)