diff --git a/tcp_tests/templates/cookied-bm-mcp-ovs-dpdk/underlay.yaml b/tcp_tests/templates/cookied-bm-mcp-ovs-dpdk/underlay.yaml
index 15e22ba..23eb24c 100644
--- a/tcp_tests/templates/cookied-bm-mcp-ovs-dpdk/underlay.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-ovs-dpdk/underlay.yaml
@@ -73,9 +73,9 @@
         net: {{ os_env('EXTERNAL_ADDRESS_POOL01', '172.17.42.128/26:26') }}
         params:
           ip_reserved:
-            gateway: '172.17.42.129'
-          ip_ranges:
-              dhcp: ['172.17.42.130', '172.17.42.180']
+            gateway: +1
+            l2_network_device: -2
+
 
     groups:
       - name: virtual