diff --git a/tcp_tests/templates/virtual-mcp-ocata-dvr/_context-environment.yaml b/tcp_tests/templates/virtual-mcp-ocata-dvr/_context-environment.yaml
index 6707515..9a04b68 100644
--- a/tcp_tests/templates/virtual-mcp-ocata-dvr/_context-environment.yaml
+++ b/tcp_tests/templates/virtual-mcp-ocata-dvr/_context-environment.yaml
@@ -150,6 +150,7 @@
           role: single_dhcp
         ens4:
           role: single_vlan_ctl
+          single_address: ${_param:openstack_dns_node01_address}
 
     dns02.mcp11-ovs-dpdk.local:
       reclass_storage_name: openstack_dns_node02
@@ -161,3 +162,4 @@
           role: single_dhcp
         ens4:
           role: single_vlan_ctl
+          single_address: ${_param:openstack_dns_node02_address}