diff --git a/tempest/tempest_ext.conf b/tempest/tempest_ext.conf
index ce84650..f6e3529 100644
--- a/tempest/tempest_ext.conf
+++ b/tempest/tempest_ext.conf
@@ -10,9 +10,11 @@
 ssh_timeout = 90
 ssh_channel_timeout = 100
 build_timeout = 120
+fixed_network_name = ${FIXED_NET}
 
 [compute-feature-enabled]
 nova_cert = True
+personality = True
 
 [identity]
 auth_version = v3
@@ -29,8 +31,9 @@
 [network]
 build_timeout = 120
 endpoint_type = publicURL
-public_network_id = ${PUBLIC_NETWORK_ID}
-floating_network_name = ${PUBLIC_NETWORK_NAME}
+
+[network_feature_enabled]
+port_security = true
 
 [validation]
 run_validation = true